Relevant bibliographies by topics / Stress-strain analysis of artery

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  3. Books
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Academic literature on the topic 'Stress-strain analysis of artery'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Stress-strain analysis of artery"

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Huo, Yunlong, Yana Cheng, Xuefeng Zhao, Xiao Lu, and Ghassan S. Kassab. "Biaxial vasoactivity of porcine coronary artery." American Journal of Physiology-Heart and Circulatory Physiology 302, no. 10 (May 15, 2012): H2058—H2063. http://dx.doi.org/10.1152/ajpheart.00758.2011.

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The passive mechanical properties of blood vessel mainly stem from the interaction of collagen and elastin fibers, but vessel constriction is attributed to smooth muscle cell (SMC) contraction. Although the passive properties of coronary arteries have been well characterized, the active biaxial stress-strain relationship is not known. Here, we carry out biaxial (inflation and axial extension) mechanical tests in right coronary arteries that provide the active coronary stress-strain relationship in circumferential and axial directions. Based on the measurements, a biaxial active strain energy function is proposed to quantify the constitutive stress-strain relationship in the physiological range of loading. The strain energy is expressed as a Gauss error function in the physiological pressure range. In K+-induced vasoconstriction, the mean ± SE values of outer diameters at transmural pressure of 80 mmHg were 3.41 ± 0.17 and 3.28 ± 0.24 mm at axial stretch ratios of 1.3 and 1.5, respectively, which were significantly smaller than those in Ca2+-free-induced vasodilated state (i.e., 4.01 ± 0.16 and 3.75 ± 0.20 mm, respectively). The mean ± SE values of the inner and outer diameters in no-load state and the opening angles in zero-stress state were 1.69 ± 0.04 mm and 2.25 ± 0.08 mm and 126 ± 22°, respectively. The active stresses have a maximal value at the passive pressure of 80–100 mmHg and at the active pressure of 140–160 mmHg. Moreover, a mechanical analysis shows a significant reduction of mean stress and strain (averaged through the vessel wall). These findings have important implications for understanding SMC mechanics.
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SHAHIDIAN, AZADEH, and ARASH GHORBANNIA HASSANKIADEH. "STRESS ANALYSIS OF INTERNAL CAROTID ARTERY WITH LOW STENOSIS LEVEL: THE EFFECT OF MATERIAL MODEL AND PLAQUE GEOMETRY." Journal of Mechanics in Medicine and Biology 17, no. 06 (September 2017): 1750098. http://dx.doi.org/10.1142/s0219519417500981.

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Stress concentration in carotid stenosis has been proven to assist plaque morphology in disease diagnosis and vulnerability. This work focuses on numerical analysis of stress and strain distribution in the cross-section of internal carotid artery using a 2D structure-only method. The influence of four different idealized plaque geometries (circle, ellipse, oval and wedge) is investigated. Numerical simulations are implemented utilizing linear elastic model along with four hyperelastic constitutive laws named neo-Hookean, Ogden, Yeoh and Mooney–Rivlin. Each case is compared to the real geometry. Results show significant strength of oval and wedged geometries in predicting stress and strain values. Our results emphasize that Yeoh and Ogden hyperelastic materials are more reliable in stress prediction with errors less than 3%. The same concept is observed in locating critical stresses where oval and wedged plaque geometries are the most accurate models. Similar results are observed in predicting maximum principal elastic strain with errors less than 1%. However, the strain distribution in idealized plaque models showed a considerable difference in comparison with real geometry.
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YAMADA, Hiroshi, and Noriyuki SAKATA. "905 Stress/strain analyses of common carotid artery using various hyperelastic material models." Proceedings of Conference of Kyushu Branch 2010.63 (2010): 327–28. http://dx.doi.org/10.1299/jsmekyushu.2010.63.327.

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VALENCIA, ALVARO, MAXIMILIANO ROJO, RODRIGO RIVERA, and EDUARDO BRAVO. "SENSITIVITY ANALYSIS OF COMPUTATIONAL STRUCTURAL DYNAMICS IN A CEREBRAL ANEURYSM MODEL TO WALL THICKNESS AND MODEL." Journal of Mechanics in Medicine and Biology 12, no. 03 (June 2012): 1250054. http://dx.doi.org/10.1142/s0219519411004630.

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Intracranial saccular aneurysms tend to be thin walled and stiffer compared with a normal artery. The current work describes computational structural dynamics (CSD) in an anatomically realistic model of a cerebral aneurysm located in the ophthalmic region, using different wall thickness, model data for the artery and aneurysm, and geometry size. The model was obtained from three-dimensional rotational angiography image data. The wall was assumed three-dimensional hyperelastic solid with different thickness in the artery and in the aneurysm regions. The effects of carotid siphon length are reported. The CSD was solved with the finite elements package ADINA. The predictions of stress and strain on the aneurysm wall were compared.
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XU, CHUANGYE, XIUJIAN LIU, LIANQIANG PAN, GUANGHUI WU, LIXIA SHU, YUNA HE, LIPING MA, and CHANGYAN LIN. "NUMERICAL ANALYSIS OF BALLOON EXPANDABLE STENT DEPLOYMENT INSIDE A PATIENT-SPECIFIC STENOTIC CORONARY ARTERY TO INVESTIGATE THE INSTANT MECHANICAL BEHAVIORS." Journal of Mechanics in Medicine and Biology 17, no. 07 (November 2017): 1740037. http://dx.doi.org/10.1142/s0219519417400371.

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The instant mechanical behaviors of stenotic coronary artery and deployed stents have significant impacts on percutaneous coronary intervention prognosis. However, they could not be obtained directly from the current examination techniques, which are commonly used in clinical practice. Thus, we intend to investigate the instantaneous mechanical behaviors of deployed stent and artery through virtually stenting technology based on a real clinical case in assessment of geometric and biomechanical characteristics. Method: Finite element analysis models, including rigid guide catheter, six-folded balloon with conical tip, crimped and bended stent, stenotic coronary artery with soft plaques, were simulated through virtual mechanical expansion and recoil procedure. The morphology changes of coronary lumen, strain and stress distribution of involved components at different stages and apposition of stent struts were analyzed. Results: Lumen in the stenotic region restored patency obviously at maximum expansion and had an elastic recoil about 13.5% later. The maximum principal stress distribution of artery walls and plaque was mainly concentrated in the stenotic segment with the peak value of 1.252[Formula: see text]MPa and 2.975[Formula: see text]MPa at max expansion, 0.713[Formula: see text]MPa and 1.25[Formula: see text]MPa after recoil, respectively. The higher von Mises stress and plastic equivalent strain of stent were present at the bended strut and inter-ring connectors with the peak value of 714.2[Formula: see text]MPa and 0.2385 at max expansion, 694[Formula: see text]MPa and 0.2276 after recoil. Slight malappositions were found in the proximal segment and struts distribution in the stenotic sites showed certain asymmetry. Conclusion: The instant mechanical behaviors of artery and stent could be evaluated through virtual stenting approach in assessment of geometric and biomechanical characteristics. This may contribute to choosing the best stenting schemes and predicting the clinical outcomes for a specific patient.
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Tsai, Ming Chang, and Shyh Chour Huang. "The Analysis of Pulse Pressure by Vascular Strain." Applied Mechanics and Materials 256-259 (December 2012): 2383–86. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.2383.

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The objective of this paper is to use the Noninvasive Strain Measurement System to monitor the pulse pressure of the blood’s undulation in the artery as an index for the clinical diagnosis of arteriosclerosis. In the study, a strain-measuring device (350Ω) is affixed to the left side of the radial styloid process, on the surface of the skin, and is connected to the Strain FleXense. An artery-pressuring tape is set on the left humerus, and the measurement of the wavelength and frequency of the heartbeat is taken to compare with the clinical artery wave. The results show that when the subject is in a comfortable position with moderate physiological levels, the heartbeat has no connection whatsoever with blood pressure. The greatest heartbeat strain, which occurs when the veins and arteries respectively are being cleared, displays as a linear change.
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Tsai, Ming Chang, and Shyh Chour Huang. "The Analysis of Pulse Pressure by Vascular Strain." Applied Mechanics and Materials 268-270 (December 2012): 1194–97. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.1194.

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The objective of this paper is to use the Noninvasive Strain Measurement System to monitor the pulse pressure of the blood’s undulation in the artery as an index for the clinical diagnosis of arteriosclerosis. In the study, a strain-measuring device (350Ω) is affixed to the left side of the radial styloid process, on the surface of the skin, and is connected to the Strain FleXense. An artery-pressuring tape is set on the left humerus, and the measurement of the wavelength and frequency of the heartbeat is taken to compare with the clinical artery wave. The results show that when the subject is in a comfortable position with moderate physiological levels, the heartbeat has no connection whatsoever with blood pressure. The greatest heartbeat strain, which occurs when the veins and arteries respectively are being cleared, displays as a linear change.
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Zhang, Wei, Carly Herrera, Satya N. Atluri, and Ghassan S. Kassab. "Effect of Surrounding Tissue on Vessel Fluid and Solid Mechanics." Journal of Biomechanical Engineering 126, no. 6 (December 1, 2004): 760–69. http://dx.doi.org/10.1115/1.1824128.

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There is no doubt that atherosclerosis is one of the most important health problems in the Western Societies. It is well accepted that atherosclerosis is associated with abnormal stress and strain conditions. A compelling observation is that the epicardial arteries develop atherosclerosis while the intramural arteries do not. Atherosclerotic changes involving the epicardial portion of the coronary artery stop where the artery penetrates the myocardium. The objective of the present study is to understand the fluid and solid mechanical differences between the two types of vessels. A finite element analysis was employed to investigate the effect of external tissue contraction on the characteristics of pulsatile blood flow and the vessel wall stress distribution. The sequential coupling of fluid-solid interaction (FSI) revealed that the changes of flow velocity and wall shear stress, in response to cyclical external loading, appear less important than the circumferential stress and strain reduction in the vessel wall under the proposed boundary conditions. These results have important implications since high stresses and strains can induce growth, remodeling, and atherosclerosis; and hence we speculate that a reduction of stress and strain may be atheroprotective. The importance of FSI in deformable vessels with pulsatile flow is discussed and the fluid and solid mechanics differences between epicardial and intramural vessels are highlighted.
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Ryo, Keiko, Hiroya Kawai, Kouhei Yamawaki, Yuko Fukuda, Mariko Okada, Kazuko Norisada, Kazuhiro Tatsumi, Kensuke Matsumoto, Tetsuari Oonishi, and Ken-Ichi Hirata. "The Usefulness of Handgrip Stress Echocardiography With Segmental Stsystolic Strain Analysis in Patients With Coronary Artery Disease." Journal of Cardiac Failure 15, no. 7 (September 2009): S160. http://dx.doi.org/10.1016/j.cardfail.2009.07.041.

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Bathe, M., and R. D. Kamm. "A Fluid-Structure Interaction Finite Element Analysis of Pulsatile Blood Flow Through a Compliant Stenotic Artery." Journal of Biomechanical Engineering 121, no. 4 (August 1, 1999): 361–69. http://dx.doi.org/10.1115/1.2798332.

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A new model is used to analyze the fully coupled problem of pulsatile blood flow through a compliant, axisymmetric stenotic artery using the finite element method. The model uses large displacement and large strain theory for the solid, and the full Navier-Stokes equations for the fluid. The effect of increasing area reduction on fluid dynamic and structural stresses is presented. Results show that pressure drop, peak wall shear stress, and maximum principal stress in the lesion all increase dramatically as the area reduction in the stenosis is increased from 51 to 89 percent. Further reductions in stenosis cross-sectional area, however, produce relatively little additional change in these parameters due to a concomitant reduction in flow rate caused by the losses in the constriction. Inner wall hoop stretch amplitude just distal to the stenosis also increases with increasing stenosis severity, as downstream pressures are reduced to a physiological minimum. The contraction of the artery distal to the stenosis generates a significant compressive stress on the downstream shoulder of the lesion. Dynamic narrowing of the stenosis is also seen, further augmenting area constriction at times of peak flow. Pressure drop results are found to compare well to an experimentally based theoretical curve, despite the assumption of laminar flow.
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Dissertations / Theses on the topic "Stress-strain analysis of artery"

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Ingul, Charlotte Björk. "Quantification of regional myocardial function by strain rate and strain for evaluation of coronary artery disease : Automated versus manual analysis during acute myocardial infarction and dobutamine stress echocardiography." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Medicine, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-777.

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Kvantifisering av hjertets muskelfunksjon med tøyning og tøyningshastighet målt med ultralyd for vurdering av koronar sykdom.

Automatisert metode versus manuell ved akutt hjerteinfarkt og ultralyd stress test.

Vanligvis måles hjertets muskelfunksjon med ultralyd, en mye brukt metode for å diagnostisere hjertesykdommer. Vurderingen av muskelfunksjonen baserer seg i dag på en subjektiv visuell gradering av bevegelsen av hjertemuskelen, og dette krever erfaring. En ny automatisert diagnostisk ultralydsmetode basert på måling av hastigheten i hjertemuskelen gir et kvantitativt mål på muskelens tøyning og sammentrekning. Den nye metoden gir ny og mer detaljert informasjon om hjertets funksjon og om pasientens prognose enn vanlig ultralydsvurdering.

Den nye metoden er mer presis ved oppfølgning etter hjerteinfarkt. Et hjerteinfarkt gir nedsatt bevegelse av muskelen og måles med den nye metoden som nedsatt hastighet som muskelen forkortes med. Små forandringer i den skadde hjertemuskelen, ikke alltid synlige for øyet, kan mer nøyaktig følges over tid med den nye metoden. Utbredelsen av hjerteinfarktet kan også vurderes mer nøyaktig.

Det samme gjelder når angina vurderes under belastning. Når en pasient ikke kan sykle eller gå på tredemølle brukes en medisinsk belastningstest. Ved å belaste hjertet med et medikament som øker hjertemuskelens arbeid samtidig med en ultralydundersøkelse, kan vi oppdage redusert blodforsyningsreserve i hjertet. Stresstesten hjelper til med å vurdere om en trang blodåre bør åpnes etter et hjerteinfarkt, og til å vurdere pasienters risiko for hjertekomplikasjoner før en større operasjon. Den nye metoden gir i tillegg mer informasjon om den langsiktige prognosen sammenlignet med den gamle metoden. Vi har funnet at den nye ultralydsmetoden er mer presis (gir større diagnostisk treffsikkerhet i diagnostikk av koronarsykdom) sammenlignet med den gamle.

Måling av sammentrekningshastigheter i hjertemuskelen ble utviklet og testet på Institutt for sirkulasjon og bildediagnostikk ved NTNU av Andreas Heimdal og Asbjørn Støylen i 1998. Metoden trengte teknisk videreutvikling og testing i et større pasientmateriale. Metoden har ikke fått stor utbredelse på sykehusene pga støyfylte kurver og tidskrevende analyser, men med denne automatiserte metoden blir brukervennligheten større som muliggjør klinisk bruk.


Paper I and II preprinted with kind permission of Elsevier, sciencedirect.com
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Maša, Marek. "Deformačně-napěťová analýza aterosklerotické tepny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228122.

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The main goal of this diploma thesis was the stress-strain analysis of iliac artery with atheroma.This problem was solved using finite element method (FEM).For the calculation purposes three two-dimensional models were created. The geometry was gained from transversal sections through the iliac artery with ateroma. This geometry is educed from used literature review. The main calculation process was run by ANSYS 11.0 program system.
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Walimbe, Vivek S. "Interactive, quantitative 3D stress echocardiography and myocardial perfusion spect for improved diagnosis of coronary artery disease." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1154710169.

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Janík, Rostislav. "Deformačně-napěťová analýza tepny s ateromem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443748.

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This master thesis analyses stress and strain of iliac artery with atheroma. Model of artery is created as 2D and symmetric about the y-axis. The first part of the thesis deals with a research, which includes obtaining information from medicine, which is necessary fort the right solution of the task. Next part dedicates to nonlinear mechanics, constitutive modeling from the view of biomechanice and computational modeling of arteries. In the next part is made analysis for load on artery by physiological and also by high blood pressure. In the end were specified uncertainties of the used model and evaluated chance of atherosclerotic plaque rupture.
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Kida, Naoki. "Finite element formulation and analysis for an arterial wall with residual and active stresses." Kyoto University, 2014. http://hdl.handle.net/2433/189352.

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Nagy, Ellerie. "The Effect of Calcified Plaque on Stress within a Fibrous Thin Cap Atheroma in an Atherosclerotic Coronary Artery Using Finite Element Analysis (FEA)." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/385.

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Atherosclerosis causes hundreds of thousands of deaths in the US alone every year. Fibrous cap rupture is one of the leading causes of these fatalities. Thin cap atheromas are commonly regarded as vulnerable plaque, however the effect of calcium upon a thin fibrous cap with lipid pool is poorly understood. Some studies have shown that calcium adds to stability of the lesion, while others have proven otherwise. An article by Li et al. 2007 suggests location is the key factor. By varying the percentage of calcium and lipid within a defined region, the stress on the cap was estimated using an idealized finite element arterial model. Also the thickness of the fibrous cap was varied to determine whether the stress was solely a function of lipid percentage or a combination. Plaque, arterial wall, lipid, and calcium were modeled using linear elastic, isotropic, and incompressible material properties. The first test varied the thin cap thickness from 65 to 500 microns and tested the calcified lipid model at varying lipid/calcium percentages. The lipid/Calcium pool increased/decreased 10% each test. As the cap thickness becomes thinner than 100 microns, the stress level increases rapidly. The second test compared a model with lipid pool and calcium behind the lipid with a thin cap of 65 microns to a model with lipid pool of the same size and thin cap of 65 microns but only fibrous tissue surrounding (no calcium). The lipid pool increased from 10 to 90% lipid. The result of this test found that at higher lipid percentages, the calcium increased the stress on the cap. By understanding the material properties of plaque and the structure of the lesion, future developments may be able to evaluate rupture risk. This idealized study illustrates the ability of computation models to provide insight into clinical situations.
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Polzer, Stanislav. "Stress-Strain Analysis of Aortic Aneurysms." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-234135.

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Tato práce se zabývá problematikou aneurysmat břišní aorty a možností využít konečnoprvkovou deformačně-napěťovou analýzu těchto aneurysmat ke stanovení rizika ruptury. První část práce je věnována úvodu do problematiky, popisu kardiovaskulární soustavy člověka s důrazem na abdominální aortu, anatomii, fyziologii a patologii stěny tepny s důrazem na procesy vedoucí ke vzniku aneurysmatu. Dále se práce věnuje rizikovým faktorům přispívajících ke vzniku aneurysmat spolu s analýzou současných klinických postupů ke stanovení rizika ruptury spolu se srovnáním navrhovaného kritéria maximálního napětí. Dominantní část této disertace je věnována identifikaci faktorů ovlivňujících napjatost a deformaci stěny aneurysmatu spolu s návrhem nových postupů, prezentací vlastních poznatků vedoucích ke zpřesnění určení rizika ruptury pomocí deformačně- napěťové analýzy a metody konečných prvků. Nejprve je analyzován vliv geometrie, vedoucí k závěru, že je nezbytné používání individuálních geometrií pacienta. Dále je pozornost zaměřena na odbočující tepny, které ve stěně působí jako koncentrátor napětí a mohou tedy ovlivňovat napjatost v ní. Jako další podstatný faktor byl identifikován vliv nezatížené geometrie a bylo napsáno makro pro její nalezení, které bylo opět zahrnuto jako standardní součást do výpočtového modelu. Mechanické vlastnosti jak stěny aneurysmatu, tak intraluminálního trombu jsou experimentálně testovány pomocí dvouosých zkoušek. Také je zde analyzován vliv modelu materiálu, kde je ukázáno, že srovnávání maximálních napětí u jednotlivých modelů materiálu není vhodné díky zcela rozdílným gradientům napětí ve stěně aneurysmatu. Dále je zdůrazněna potřeba znalosti distribuce kolagenních vláken ve stěně a navržen program k jejímu získání. Intraluminální trombus je analyzován ve dvou souvislostech. Jednak je ukázán vliv jeho ruptury na napětí ve stěně a jednak je analyzován vliv jeho poroelastické struktury na totéž. Posledním identifikovaným podstatným faktorem je zbytková napjatost ve stěně. Její významnost je demonstrována na několika aneurysmatech a i tato je zahrnuta jako integrální součást do našeho výpočtového modelu.Na závěr jsou pak navrženy další možné směry výzkumu.
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Howell, Geoffrey Peter. "Identification of plastic strain using thermoelastic stress analysis." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/412636/.

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Identification of regions containing plastic strain arising from the welding process is performed through the application of thermoelastic stress analysis (TSA) and finite element (FE) modelling. An approach is developed that removes the requirement to have a physical reference specimen for the component studied by developing a 'synthetic reference bitmap' using finite element analysis. The regions containing plastic strain can be identified with TSA by collecting data from a 'reference' plastic strain free specimen from the TSA data and creating a resultant bitmap. Here, a synthetic bitmap is developed that mimics the thermoelastic response of a physical reference specimen. The approach is validated against physical reference specimens of different geometries and materials (AL2024 and 316L stainless steel) and is shown to accurately model the thermoelastic response. The newly developed synthetic bit map approach is applied to specimens containing welds and it is shown that the regions that contain plastic strain in the heat affected zone (HAZ) of a double bead welded 316L stainless steel specimen can be revealed. The predicted changes in thermoelastic response are compared to plastic strain predictions generated by thermomechanical modelling of the welded specimen and the distribution of plastic strain found by the TSA matches that given by the model. The relationship between the change in thermoelastic response and plastic strain has been investigated and the results suggest there is a change in the thermoelastic response as a result of plastic straining. However, uncertainties in the data resulting from detector noise and other errors mean that further development of the experiments and the equipment is required to provide a conclusive and quantitative relationship. It has also been demonstrated that TSA can be used outside of the laboratory in onsite trials in two coal fired power stations. Thermoelastic data was successfully recorded from pipe welds in-situ. To achieve this a new means of loading the pipes was devised based on vibration excitation, and the difficulties of performing surface measurements on heavily corroded pipes were overcome. The results from the onsite tests show that TSA can be used as an in-situ assessment technique and that is no longer restricted to being a laboratory based technique.
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Hemmat, Abbas. "Stress/strain analysis and internal bruising in potato tubers." Thesis, Cranfield University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357842.

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Kang, Wei-Ping. "Application of numerical analysis to neutron strain scanning." Thesis, University of Salford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360449.

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Books on the topic "Stress-strain analysis of artery"

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1925-, Riley William F., ed. Experimental stress analysis. 3rd ed. New York: McGraw-Hill, 1991.

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1925-, Riley William F., ed. Experimental stress analysis. 3rd ed. New York: McGraw-Hill, 1991.

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Ling, Hoe I., Luigi Callisto, Dov Leshchinsky, and Junichi Koseki, eds. Soil Stress-Strain Behavior: Measurement, Modeling and Analysis. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6146-2.

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Freed, Alan David. On the thermodynamics of stress rate in the evolution of back stress in viscoplasticity. [Washington, DC]: National Aeronautics and Space Administration, 1991.

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Formulas for stress, strain, and structural matrices. 2nd ed. Hoboken, NJ: John Wiley & Sons, 2005.

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Formulas for stress, strain, and structural matrices. New York: J. Wiley, 1994.

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Verderaime, V. Test load verification through strain data analysis. Washington, DC: National Aeronautics and Space Administration, 1995.

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Hwang, C. Robin. Computer aided analysis of the stress/strain response of high polymers. Edited by Lin Chiah C, Matis Gary, and Hopfe H. H. Lancaster, PA: Technomic, 1989.

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Keil, Stefan. Technology and Practical Use of Strain Gages With Particular Consideration of Stress Analysis Using Strain Gages. Berlin, Germany: Wilhelm Ernst & Sohn, 2017. http://dx.doi.org/10.1002/9783433606667.

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Batoz, Jean-Louis. Geometrically nonlinear analysis of shell structures using flat DKT shell elements. Monterey, Calif: Naval Postgraduate School, 1985.

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Book chapters on the topic "Stress-strain analysis of artery"

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Tamames, Benjamín Celada, and Pedro Varona Eraso. "Stress–strain analysis." In Ground Characterization and Structural Analyses for Tunnel Design, 397–442. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, [2019]: CRC Press, 2019. http://dx.doi.org/10.1201/9781351168489-10.

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Buradi, Abdulrajak, and Arun Mahalingam. "Numerical Analysis of Wall Shear Stress Parameters of Newtonian Pulsatile Blood Flow Through Coronary Artery and Correlation to Atherosclerosis." In Advances in Mechanical Engineering, 107–18. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0124-1_12.

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Keil, Stefan, and Karlheinz Schäfer. "Measurement of Tectonic Rock Strain in Iceland." In Experimental Stress Analysis, 623–31. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4416-9_68.

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Gere, James M., and Stephen P. Timoshenko. "Analysis of Stress and Strain." In Mechanics of Materials, 378–460. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4899-3124-5_6.

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Chen, W. F., and H. Zhang. "One-Dimensional Stress-Strain Analysis." In Structural Plasticity, 1–51. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4612-2984-1_1.

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Chen, W. F., and H. Zhang. "Elastic Stress and Strain Analysis." In Structural Plasticity, 111–24. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4612-2984-1_3.

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Bremand, F., and A. Lagarde. "Optical Method of Strain Measurement. Application to Study of Circular Bending of a Beam in the Large Strain Range." In Experimental Stress Analysis, 341–50. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4416-9_38.

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Seika, Masaichiro, and Kikuo Hosono. "Stress Measurements By Strain Gages Made Of Nickel Foil." In Applied Stress Analysis, 598–606. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0779-9_57.

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Laermann, Karl-Hans. "Hybrid Technique to Analyze 3-D Stress - Strain States." In Applied Stress Analysis, 639–48. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0779-9_61.

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Dolhof, Vâclav. "Evaluation of Strain Gauge Measurements in Elasto-Plastic Area." In Experimental Stress Analysis, 429–37. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4416-9_47.

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Conference papers on the topic "Stress-strain analysis of artery"

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Rachev, A. I., and S. K. Drenska. "Theoretical stress analysis of artery/graft systems." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1988. http://dx.doi.org/10.1109/iembs.1988.94858.

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Brand, Moshe, Michael Ryvkin, and Shmuel Einav. "The SciMED RADIUS™ Stent-Artery Interaction." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59341.

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Main cause of restenosis after balloon angioplasty is due to the stresses generated in the artery as well as from the stent artery interaction. Understanding the factors that are involved in this interaction and the ability to evaluate the stresses that are formed in the artery, could help to lessen the number of failures. The goal of the present study is to develop computationally efficient analytical model for estimating the potential damage factor as the contact stresses, and to investigate their influence upon stent design, artery and plaque parameters. The artery was stipulated to be thick walled cylinder and its stress-strain state was determined from analytic solution of Lame problem. An analytic model based on the analysis of the beams deformation in the framework Euler-Bernoulli assumptions was formulated for the stent. The radial pressure, which is exerted on the inner surface of the artery, is assumed to be an average of contact stresses applied by the stent and the blood pressure. The variation in the Potential Damage Factor value as a function of the mismatch between stent’s and artery’s diameters is linear, and as much as the diameter of the artery increases, the Potential Damage Factor for the same mismatch decreases. For arteries with 75% blocking and mismatch of 1mm, the potential damage factor is 4.5.
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Bernad, S. I., A. I. Bosioc, A. F. Totorean, I. Petre, and E. S. Bernad. "Wall shear stress evolution in carotid artery bifurcation." In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2016). Author(s), 2017. http://dx.doi.org/10.1063/1.4992173.

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Tafazzoli Shadpour, Mohammad, Albert Avolio, and Shahram Delavarpour. "Finite Element Modeling and Dynamic Stress Analysis of the Arterial Wall With Physiological Arterial Pressure Waveforms." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58304.

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Arterial diseases, promoted by modification of arterial wall properties, are among the main causes of morbidity and mortality. Biomechanical parameters, including mechanical wall stress, are important factors determining arterial function in normal and pathological conditions. This investigation aims to determine dynamic stress distribution in the arterial wall 7subjected to physiological pressure waveforms. Finite element models of a typical artery were developed to evaluate Von Mises stress in the arterial wall due to physiological pressure waveforms and with differing mechanical parameters, including Young’s modulus of elasticity, non-linear stress-strain relationship and visco-elastic parameter, and appropriate boundary conditions allowing radial expansion. Results showed marked effects by mentioned parameters on maximum, minimum and amplitude of the stress wave and stress waveform. This study suggest to analyse fatigue effects of the arterial wall due to differing stress waveforms and values.
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Zhao, Shijia, Linxia Gu, James M. Hammel, and Haili Lang. "Mechanical Behavior of Porcine Pulmonary Artery." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39012.

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Proper characterization of the material properties of pulmonary arterial tissue is needed for many medical applications. The objective of this study was to investigate the stress-strain relationship and characterize the nonlinear elastic behavior of porcine pulmonary arteries; thus, uniaxial tension tests and cyclic loading-unloading tests were conducted on healthy porcine pulmonary arterial tissue. In these experiments, pulmonary arteries from different piglets and a commercial pulmonary valved conduit, called “Contegra 200”, were subjected to uniaxial tension. Results demonstrated a higher stiffness along the circumferential direction than the axial direction. The “Contegra 200” was much suffer than real pulmonary arterial tissue along the axial direction and had a similar stiffness to natural tissue along the circumferential direction within physiological stretch ranges, which is less than 40% strain. Elastic hysteresis was observed from cyclic loading-unloading tests, which indicates that more energy was required during the loading than the unloading. A nonlinear hyperelastic model based on second order polynomial constitutive equation was derived from average values of the test data along both axial and circumferential directions. The material model could be used in numerical analysis of pulmonary arterial response and facilitate the design of intravascular devices.
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Okada, Yuta, Seiichi Ikeda, Toshio Fukuda, Fumihito Arai, Makoto Negoro, and Ikuo Takahashi. "Photoelastic Stress Analysis on Patient-Specific Anatomical Model of Cerebral Artery." In 2007 International Symposium on Micro-NanoMechatronics and Human Science. IEEE, 2007. http://dx.doi.org/10.1109/mhs.2007.4420913.

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Liang, Yun, Hui Zhu, Thomas Gehrig, and Morton H. Friedman. "Coronary Artery Wall Strain Estimation From Clinical IVUS Images." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176256.

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Atherosclerotic plaque rupture is responsible for the majority of acute coronary syndromes and myocardial infarctions. Intravascular ultrasound (IVUS) imaging is a widely available clinical technique providing real time cross-sectional images of the vessel wall and plaque morphometry. However, IVUS echo images have limited ability to predict the vulnerability of the plaque. The mechanical behavior of the plaque is consistent with its underlying components, suggesting that measurements of plaque mechanical response can be used to assess the likelihood of plaque rupture [1]. Arterial wall strain in response to luminal pressure change is such a measurable quantity. IVUS elastography has been developed to measure the radial strain through correlation analysis of the IVUS radiofrequency (RF) signal [2]. Due to the movements of IVUS catheter caused by cardiac motion and the nonlinearity of tissue deformation, reliable strain is obtained by elastography only when the tissue motion is aligned with the RF direction and the RF traces correspond to the same axial location. This is difficult to achieve in vivo. We have developed a strain estimation method based on IVUS image registration. This 2D processing method has the ability to overcome in-plane catheter movement and heterogeneous tissue deformation, thereby increasing its accuracy. Using retrospectively retrieved cardiac phase information, we propose a practical method to estimate cross-sectional coronary arterial wall strain distribution from clinically acquired images during a conventional IVUS procedure.
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Liang, Yun, Hui Zhu, and Morton H. Friedman. "Measurement of Coronary Artery Wall Strain In Situ Using IVUS." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176574.

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Atherosclerotic plaque rupture is the leading cause of mortality in cardiovascular diseases. Studying biomechanics of plaque provides important insights into its vulnerability, since a plaque behaves consistently with its underlying contents. Arterial wall strain in response to luminal pressure change is such a measurable quantity. Intravascular ultrasound (IVUS) imaging is a wildly available clinical technique providing real time cross-sectional images of the vessel wall and plaque morphometry. IVUS elastography has been used to measure the radial strain through correlation analysis of the IVUS radiofrequency (RF) signals. We have developed a strain estimation method based on IVUS image registration. Our method has the ability to overcome nonlinear tissue deformation and measure 2D strain.
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Matsumoto, Takeo, Akihisa Fukunaga, Kengo Narita, and Kazuaki Nagayama. "Microscopic Mechanical Analysis of Aortic Wall: Estimation of Stress in the Intramural Elastic Laminas and Smooth Muscle Cells in a Physiological State." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192450.

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It is well known that the artery walls change their dimensions and mechanical properties adaptively in response to the mechanical environment they are exposed to [1]. Because mechanical adaptation of the artery wall is driven by the smooth muscle cells (SMCs) in its media, it is crucial to know the mechanical environment of SMCs in the wall to reveal the details of the adaptation mechanism. Mechanical stress applied to the SMCs in the media should be different from that applied to the wall, because at a microscopic level, the media has a highly heterogeneous structure composed of various materials with different elastic modulus. For example, aortic media has a layered structure of a lamellar unit, a pair of elastic lamina (EL) mainly composed of elastin and a smooth muscle-rich layer mainly composed of SMCs and collagen [2], and Young’s modulus of elastin, SMCs, and collagen is about 0.6MPa, 10kPa, and 1GPa, respectively [3]. Such heterogeneity should cause complex distribution of stress and strain depending on the histological structure both in the unloaded state and in the physiological state [4].
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Longest, P. W., C. Kleinstreuer, and S. Hyun. "Computational Analysis of WSS Conditions and Critical Blood Particle Localization in a Human Carotid Artery Bifurcation." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43121.

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Early intimal thickening (IT) in the carotid artery bifurcation has been associated with multiple hemodynamic and biophysical factors including low wall shear stress (WSS) and high oscillatory shear index (OSI) (Ku et al., 1995), as well as abnormal intramural stress and strain. While WSS conditions have been widely shown to affect vascular biology and arterial wall self-regulation, the near-wall localization of critical blood particles, such as monocytes and platelets, also plays a significant role in atherosclerotic lesion formation and general IT (Ross, 1993). In this study, we hypothesize that locations of elevated monocyte and platelet interactions with reactive or activated vascular surfaces, due to injury or endothelial dysfunction, are highly susceptible to IT initialization and progression in the carotid artery bifurcation (CAB). To assess the potential role of platelet-and monocyte-wall interactions, as well as other WSS-based hemodynamic wall parameters (HWPs), experimentally validated particle-hemodynamic simulations have been conducted for a representative CAB geometry. Areas of significant particle interactions with the vascular surface have been identified by a validated near-wall residence time (NWRT) model for monocytes and platelets, which encapsulates regions of near-wall particle stasis and/or elevated concentrations. Actual early intimal thickening has been assumed consistent with the observations of Masawa et al. (1994a & b) (Fig. 1).
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Reports on the topic "Stress-strain analysis of artery"

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Fan, Meng, Qingqing Cheng, Jing Zeng, Dong Zhang, Zeyu Xiao, Changzheng Shi, and Liangping Luo. The guidance value of coronary artery disease revascularization comparison between CMR Stress Perfusion Imaging and FFRCT with ICA as the reference standard: meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, September 2020. http://dx.doi.org/10.37766/inplasy2020.9.0001.

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Guerrero, H., and M. Restivo. TESTING AND ANALYSIS OF CAP CONCRETE STRESS AND STRAIN DUE TO SHRINKAGE, CREEP, AND EXPANSION FINAL REPORT. Office of Scientific and Technical Information (OSTI), August 2011. http://dx.doi.org/10.2172/1023617.

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Rahman, Mohammad, Ahmed Ibrahim, and Riyadh Hindi. Bridge Decks: Mitigation of Cracking and Increased Durability—Phase III. Illinois Center for Transportation, December 2020. http://dx.doi.org/10.36501/0197-9191/20-022.

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Early-age cracking in concrete decks significantly reduces the service life of bridges. This report discusses the application of various concrete mixtures that include potential early mitigation ingredients. Large-scale (7 ft × 10 ft) experimental bridge prototypes with similar restraint conditions found in actual bridges were poured with different concrete mixtures to investigate mitigation techniques. Portland cement (control), expansive Type K cement, internally cured lightweight aggregate (LWA), shrinkage-reducing admixture (SRA), and gypsum mineral were investigated as mitigating ingredients. Seven concrete mixtures were prepared by using individual ingredients as well as a combination of different ingredients. The idea behind combining different mitigating techniques was to accumulate the combined benefit from individual mitigating materials. The combined Type K cement and LWA mixture showed higher concrete expansion compared with mixtures containing Portland cement, Type K cement, LWA, and SRA in the large-scale experimental deck. Extra water provided by LWA significantly enhanced the performance of Type K cement’s initial expansion as well as caused larger total shrinkage over the drying period. A combination of Type K cement and gypsum mineral showed insignificantly higher expansion compared with the individual Type K mixture. Overall, the experimental deck containing SRA showed the least total shrinkage compared with other mixtures. Finite-element modeling was performed to evaluate and predict concrete stress-strain behavior due to shrinkage in typical bridges. A parametric study using finite-element analysis was conducted by altering the structure of the experimental deck. More restraint from internal reinforcement, less girder spacing, larger girder flange width, and more restrictive support conditions increased the concrete tensile stress and led to potential cracking in the concrete deck.
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STRESS RESPONSE AND INITIAL STIFFNESS OF SIDE PLATE CONNECTIONS TO WCFT COLUMNS. The Hong Kong Institute of Steel Construction, September 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.9.

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To study the mechanism of load transfer in double-side-plate connections between I-beams and wall-type concrete-filled steel tubular columns, a pseudo-static experiment and finite element analysis were conducted for two full-scaled specimens. The results revealed that the primary load was transmitted along an S-shaped path in the side plate, and the primary strain occurred in an X-shaped region between the left and right steel beam flanges. The shear force in the steel beam web was transmitted first to the side plate centre and then to the joint area, where the side plate, steel tube web, and concrete all resisted the internal force. Based on principal component methods, a calculation formula was established for initial rotational stiffness that comprehensively considers the influence of the tensions, compression, and shear deformation of the cover plate, side plate, and web. Comparing this formula with an existing model showed that the proposed formula is suitable for new types of side plate joints. Moreover, it can accurately calculate the initial rotational stiffness of the joint, thus providing a reliable basis for future engineering design.
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FINITE ELEMENT ANALYSIS OF UNFASTENED COLD-FORMED STEEL CHANNEL SECTIONS WITH WEB HOLES UNDER END-TWO-FLANGE LOADING AT ELEVATED TEMPERATURES. The Hong Kong Institute of Steel Construction, September 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.2.

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This paper presents the results of a finite element investigation on cold-formed steel (CFS) channel sections with circular web holes under end-two-flange (ETF) loading condition and subjected to elevated temperatures. The stress strain curve for G250 CFS with 1.95 mm thickness at elevated temperatures was taken from Kankanamge and Mahendran and the temperatures were considered up to 700 oC. To analyse the effect of web hole size and bearing length on the strength of such sections at elevated temperatures, a parametric study involving a total of 288 FE models was performed. The parametric study results were then used to assess the applicability of the strength reduction factor equation presented by Uzzaman et al. for CFS channel-sections with web holes under ETF loading from ambient temperature to elevated temperatures. It is shown that the reduction factor equation is safe and reliable at elevated temperatures.
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STUDY ON MICROMECHANICAL FRACTURE MODELS OF STRUCTURAL STEEL AND ITS WELDS. The Hong Kong Institute of Steel Construction, June 2021. http://dx.doi.org/10.18057/ijasc.2021.17.2.2.

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Steel structures have been widely used in constructions due to their advantages of lightweight, high strength, short construction time and high recycling and reuse potential. Fracture failure in steel structures should be prevented to avoid collapse of the whole structures. Micromechanical fracture models can capture the fracture initiation mechanisms and therefore can be used to predict ductile fractures in steel. Twelve smooth round bars were carried out to obtain the material properties and 36 notched round bars were tested to calibrate the parameters of stress modified critical strain (SMCS) model and the void growth model (VGM) for structural steels (Q235B and Q345B) and the corresponding welds. Specimens were extracted from the base metal, the weld metal and the heat affected zone (HAZ) to investigate fracture behaviour in different parts of the welded joint. Scanning electron microscope (SEM) measurements were taken and finite element models were developed to calibrate the models. The test results and calibrated parameters are reported. Moreover, the calibrated models are applied to analyses the fracture behaviour of welded joints and their accuracy are validated. The calibrated and validated models can be used for further numerical fracture analysis in welded steel structures.
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