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Relevant bibliographies by topics / Small strain dynamic properties

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Academic literature on the topic 'Small strain dynamic properties'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Small strain dynamic properties"

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Sas, Wojciech, Katarzyna Gabryś, Emil Soból, and Alojzy Szymański. "Nonlinear dynamic properties of silty clay from Warsaw area." Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation 48, no. 3 (2016): 201–20. http://dx.doi.org/10.1515/sggw-2016-0016.

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Abstract In this work, the small-strain and nonlinear dynamic properties of silty clay samples were studied by means of the low- and high-amplitude resonant column (RC) tests at various mean effective stresses (p’). The tested specimens were collected from the centre of Warsaw, district Śródmieście. Initially, the low-amplitude tests (below 0.001%) were conducted. Subsequently, the nonlinear testing was performed, at shearing strains greater than 0.001%. These tests were carried out in order to receive the dynamic properties of silty clay specimens in the nonlinear shear strain range. The smal

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Song, Binghui, Angelos Tsinaris, Anastasios Anastasiadis, Kyriazis Pitilakis, and Wenwu Chen. "Small to medium strain dynamic properties of Lanzhou loess, China." Soil Dynamics and Earthquake Engineering 163 (December 2022): 107454. http://dx.doi.org/10.1016/j.soildyn.2022.107454.

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Kyei-Manu, William Amoako, Charles R. Herd, Mahatab Chowdhury, James J. C. Busfield, and Lewis B. Tunnicliffe. "The Influence of Colloidal Properties of Carbon Black on Static and Dynamic Mechanical Properties of Natural Rubber." Polymers 14, no. 6 (2022): 1194. http://dx.doi.org/10.3390/polym14061194.

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The influence of carbon black (CB) structure and surface area on key rubber properties such as monotonic stress-strain, cyclic stress–strain, and dynamic mechanical behaviors are investigated in this paper. Natural rubber compounds containing eight different CBs were examined at equivalent particulate volume fractions. The CBs varied in their surface area and structure properties according to a wide experimental design space, allowing robust correlations to the experimental data sets to be extracted. Carbon black structure plays a dominant role in defining the monotonic stress–strain propertie

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KREN, Alexander P. "IMPACT INDENTATION OF METALS AT THE SMALL ELASTOPLASTIC STRAIN." Mechanics of Machines, Mechanisms and Materials 1, no. 58 (2022): 56–63. http://dx.doi.org/10.46864/1995-0470-2022-1-58-56-63.

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The aim of this paper is to study and describe the behavior features of metals under impact loading in the area of elastic-plastic transition, with strains not exceeding 3–4 %, which are typical for measuring the hardness of materials during dynamic indentation. It has been established that until the state of full plasticity is reached, the excess of the dynamic hardness over the static one cannot be explained only by an increase of the strain rate and requires taking into account the elastic properties of the material. It is shown that a grow of the yield stress and the part of elastic deform

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Jafarian, Yaser, and Hamed Javdanian. "Small-strain dynamic properties of siliceous-carbonate sand under stress anisotropy." Soil Dynamics and Earthquake Engineering 131 (April 2020): 106045. http://dx.doi.org/10.1016/j.soildyn.2020.106045.

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Lei, Xudong, Kailu Xiao, Xianqian Wu, and Chenguang Huang. "Dynamic Mechanical Properties of Several High-Performance Single Fibers." Materials 14, no. 13 (2021): 3574. http://dx.doi.org/10.3390/ma14133574.

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High-performance fiber-reinforced composites (FRCs) are widely used in bulletproof structures, in which the mechanical properties of the single fibers play a crucial role in ballistic resistance. In this paper, the quasi-static and dynamic mechanical properties of three commonly used fibers, single aramid III, polyimide (PI), and poly-p-phenylenebenzobisoxazole (PBO) fibers are measured by a small-scale tensile testing machine and mini-split Hopkinson tension bar (mini-SHTB), respectively. The results show that the PBO fiber is superior to the other two fibers in terms of strength and elongati

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Gao, Shuling, and Guanhua Hu. "Experimental Study on Biaxial Dynamic Compressive Properties of ECC." Materials 14, no. 5 (2021): 1257. http://dx.doi.org/10.3390/ma14051257.

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An improved hydraulic servo structure testing machine has been used to conduct biaxial dynamic compression tests on eight types of engineered cementitious composites (ECC) with lateral pressure levels of 0, 0.125, 0.25, 0.5, 0.7, 0.8, 0.9, 1.0 (the ratio of the compressive strength applied laterally to the static compressive strength of the specimen), and three strain rates of 10−4, 10−3 and 10−2 s−1. The failure mode, peak stress, peak strain, deformation modulus, stress-strain curve, and compressive toughness index of ECC under biaxial dynamic compressive stress state are obtained. The test

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Deng, Ji Wei, Chang Wu Liu, and Jian Feng Liu. "Effect of Dynamic Loading on Mechanical Properties of Concrete." Advanced Materials Research 568 (September 2012): 147–53. http://dx.doi.org/10.4028/www.scientific.net/amr.568.147.

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Concrete structures have to bear dynamic loads in daily work, strength and deformation characteristics of concrete under dynamic loads differ from the characteristics under static loads, and this difference may become a key factor to restrict the structural safety under certain conditions. Using the MTS815 test system, the dynamic uniaxial compression tests of concrete specimens were conducted. The mechanical characteristic parameters of strength, elastic modulus, peak strain and the stress-strain curves at different loading rates of concrete specimens have been studied. The results reveal tha

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Yang, Jie, Xin Cai, Yangong Shan, Miaomiao Yang, Xingwen Guo, and Jinlei Zhao. "Small-Strain Dynamic Properties of Lean Cemented Sand and Gravel Materials under Different Cementing Agent Contents." Advances in Civil Engineering 2020 (November 24, 2020): 1–13. http://dx.doi.org/10.1155/2020/8878506.

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Lean cemented sand and gravel (LCSG) materials are increasingly being used in dams, embankments, and other civil engineering applications. Therefore, their mechanical properties and stress-strain behavior should be systematically understood. In this study, the small-strain dynamic properties of LCSG materials were examined. A series of dynamic triaxial tests were performed to investigate the effects of the confining pressure and cementing agent content of the material on its dynamic shear modulus (Gd) and damping ratio (λ). The results show that Gd increased and λ decreased with increasing con

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Kang, Gyeong-o., Woong Choi, and Changho Lee. "Prediction of Small-Strain Dynamic Properties on Granulated Spherical Glass Bead-Polyurethane Mixtures." Advances in Civil Engineering 2019 (September 12, 2019): 1–12. http://dx.doi.org/10.1155/2019/6348326.

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This paper aims to propose predictive equations for the small-strain shear modulus (Gmax) and small-strain damping ratio (Dmin) of a granulated mixture with plastic and nonplastic materials to reduce the dynamic energy of the ground. Polyurethane bead (PB) and glass bead (GB) were used as the plastic and nonplastic materials, respectively. 180 resonant-column tests were conducted with various conditions affecting the dynamic properties, such as nonplastic particle content (PC), void ratio (e), particle-size ratio (sr), and mean effective confining pressure (σm′). The results showed that Gmax a

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Dissertations / Theses on the topic "Small strain dynamic properties"

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Beyerlein, Kenneth Roy. "Simulation and Modeling of the Powder Diffraction Pattern from Nanoparticles: Studying the Effects of Faulting in Small Crystallites." Doctoral thesis, Università degli studi di Trento, 2011. https://hdl.handle.net/11572/368693.

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Accurate statistical characterization of nanomaterials is crucial for their use in emerging technologies. This work investigates how different structural characteristics of metal nanoparticles influence the line profiles of the corresponding powder diffraction pattern. The effects of crystallite size, shape, lattice dynamics, and faulting are all systematically studied in terms of their impact on the line profiles. The studied patterns are simulated from atomistic models of nanoparticles via the Debye function. This approach allows for the existing theories of diffraction to be tested, and ex

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Venables, R. "Dynamic strain ageing and the fatigue behaviour of nimonic 901." Thesis, University of Nottingham, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376646.

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Voorhies, Katherine Desiree. "Static and Dynamic Stress/Strain Properties for Human and Porcine Eyes." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31867.

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Every year, more than 2.4 million eye injuries occur in the United States, with over 30,000 of those injured left blind in at least one eye as a result. Computer modeling is one of the most versatile ways to study ocular trauma, however, existing models lack accurate stress and strain properties for ocular globe rupture. A pressure system was built to examine static and dynamic globe rupture pressures for healthy postmortem human and porcine (pig) eyes. Maximum rupture stress for the quasi-static tests was found to be 11.17MPa for human tissue and 12.08MPa for porcine tissue, whereas stress

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Wang, J., S. Dong, Ashraf F. Ashour, X. Wang, and B. Han. "Dynamic mechanical properties of cementitious composites with carbon nanotubes." Elsevier, 2019. http://hdl.handle.net/10454/17465.

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Yes<br>This paper studied the effect of different types of multi-walled carbon nanotubes (MWCNTs) on the dynamic mechanical properties of cementitious composites. Impact compression test was conducted on various specimens to obtain the dynamic stress-strain curves and dynamic compressive strength as well as deformation of cementitious composites. The dynamic impact toughness and impact dissipation energy were, then, estimated. Furthermore, the microscopic morphology of cementitious composites was identified by using the scanning electron microscope to show the reinforcing mechanisms of MWCNTs

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Lo, Kai Fung. "Small-strain shear modulus and damping ratio determination by bender element /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20LOK.

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Kemper, Andrew Robb. "Material Properties of Human Rib Cortical Bone from Dynamic Tension Coupon Testing." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/43709.

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The purpose of this study was to develop material properties of human rib cortical bone using dynamic tension coupon testing. This study presents 117 human rib cortical bone coupon tests from six cadavers, three male and three female, ranging in age from 18 to 67 years old. The rib sections were taken from the anterior, lateral, and posterior regions on ribs 1 through 12 of each cadaver's rib cage. The cortical bone was isolated from each rib section with a low speed diamond saw, and milled into dog bone shaped tension coupons using a small computer numerical control machine. A high-rate s

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Kates, Gina L. "Development and implementation of a seismic flat dilatometer test for small-and high-strain soil properties." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/20234.

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Bisplinghoff, Jill Aliza. "Biomechanical Response of the Human Eye to Dynamic Loading." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/31880.

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Blindness due to ocular trauma is a significant problem in the United States considering that each year approximately 500,000 years of eyesight are lost. The most likely sources of eye injuries include sports related impacts, automobile accidents, consumer products, and military combat. Out of the 1.9 million total eye injuries in the country, more than 600,000 sports injuries occur each year and 40,000 of them require emergency care. In 2007, approximately 66,000 people suffered from vehicle related eye injuries in the United States. Of the vehicle occupants sustaining an eye injury durin

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Almaari, Firas, and Essam Aljbban. "Strain Rate Effect on Fracture Mechanical Properties of Ferritic-Pearlitic Ductile Iron." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-78858.

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This study investigates the effect of strain rate on fracture properties of Ferritic-Pearlitic Ductile Iron. A series of dynamic three point bending tests, with various load application rates, are conducted on Charpy V-notch specimens, in room temperature and approximately -18 °C. The tests are performed in a custom-made fixture and during the tests, force and displacement data are recorded. A XFEM (Extended Finite Element Method) model of the test setup has been established and material data from the tests are used as input to the model. The test results show a strong dependency of the strain

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Sears, Nicholas C. "Investigations into the Quasi-Static and Dynamic Properties of Flexible Hybrid Electronic Material Systems." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1525278328687427.

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Books on the topic "Small strain dynamic properties"

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Antos, R., and Y. Otani. The dynamics of magnetic vortices and skyrmions. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198787075.003.0022.

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This chapter argues that control of magnetic domains and domain wall structures is one of the most important issues from the viewpoint of both applied and basic research in magnetism. Its discussion is however limited to static and dynamic properties of magnetic vortex structures. It has been revealed both theoretically and experimentally that for particular ranges of dimensions of cylindrical and other magnetic elements, a curling in-plane spin configuration is energetically favored, with a small region of the out-of-plane magnetization appearing at the core of the vortex. Such a system, whic

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White, Robert, and Mark Krstic. Healthy Soils for Healthy Vines. CSIRO Publishing, 2019. http://dx.doi.org/10.1071/9781486307395.

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Healthy Soils for Healthy Vines provides a clear understanding of vineyard soils and how to manage and improve soil health for best vineyard performance. It covers the inherent and dynamic properties of soil health, how to choose which soil properties to monitor, how to monitor soil and vine performance, and how vineyard management practices affect soil health, fruit composition and wine sensory characters. It also covers the basic tenets of sustainable winegrowing and their significance for business resilience in the face of a changing climate. This book will be of practical value to an

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Webb, Andrew. Colloids in critical illness. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0056.

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Colloid solutions are homogenous mixtures of large molecules suspended in a crystalloid solution. The efficacy of colloids as volume substitutes or expanders, and length of effect are determined by their physicochemical properties. Smaller volumes of colloid than crystalloid are required for resuscitation. The primary use of colloids is in the correction of circulating volume. Rather than using fixed haemodynamic endpoints, fluid can be given in small aliquots with assessment of the dynamic haemodynamic response to each aliquot. The aim of a fluid challenge is to produce a small, but significa

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Romagnoli, Stefano, and Giovanni Zagli. Blood pressure monitoring in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0131.

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Two major systems are available for measuring blood pressure (BP)—the indirect cuff method and direct arterial cannulation. In critically-ill patients admitted to the intensive care unit, the invasive blood pressure is the ‘gold standard’ as a tight control of BP values, and its change over time is important for choosing therapies and drugs titration. Since artefacts due to the inappropriate dynamic responses of the fluid-filled monitoring systems may lead to clinically relevant differences between actual and displayed pressure values, before considering the BP value shown as reliable, the cri

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Book chapters on the topic "Small strain dynamic properties"

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Song, Binghui, Angelos Tsinaris, Anastasios Anastasiadis, Kyriazis Pitilakis, and Wenwu Chen. "Small to Medium Strain Dynamic Properties of Lanzhou Loess." In Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11898-2_197.

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Chiaro, Gabriele, Ali Tasalloti, Alessandro Palermo, and Laura Banasiak. "Small-Strain Shear Stiffness and Strain-Dependent Dynamic Properties of Gravel-Rubber Mixtures." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1579-8_36.

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Khan, K. A., Sukanta Das, and B. K. Maheshwari. "Effect of Degree of Saturation on Dynamic Properties of Solani Sand in Small Strain." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6564-3_20.

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Miralbes, R., D. Ranz, and D. Zouzias. "Study of the Use of Sawdust and Mycelium Composite as a Substitute of EPS." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_12.

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AbstractExpanded polystyrene foams are a petroleum-origin material that is usually used in some applications such as motorcyclist helmets. Despite it notably mechanical properties, it low density and its capability to absorb energy during an impact, it is necessary to find a renewable-origin substitute material. Thus, it has been studied the use of a sawdust and mycelium composite material under quasi-static and dynamic efforts. Sawdust is a waste material that has very small grains that are totally disaggregated so it has very low material properties. The use of oyster mushroom mycelium generates an internal structure that joins grains and, consequently, the resultant material has notably high mechanical properties. Then it has been compared the resultant properties (stress-strain curve, absorbed energy, decelerations, etc.) with the different densities EPS ones and it has been concluded that this composite material, despite it high density, it could be a suitable substitute material and in some cases it has better properties.

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Tsuji, Nobuhiro, Shigenobu Ogata, Haruyuki Inui, Isao Tanaka, and Kyosuke Kishida. "Proposing the Concept of Plaston and Strategy to Manage Both High Strength and Large Ductility in Advanced Structural Materials, on the Basis of Unique Mechanical Properties of Bulk Nanostructured Metals." In The Plaston Concept. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7715-1_1.

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AbstractAdvanced structural materials are required to show both high strength and large ductility/toughness, but we have not yet acquired the guiding principle for that. The bulk nanostructured metals are polycrystalline metallic materials having bulky dimensions and average grain sizes smaller than 1 μm. Bulk nanostructured metals show very high strength compared with that of the coarse-grained counterparts, but usually exhibit limited tensile ductility, especially small uniform elongation below a few %, due to the early plastic instability. On the other hand, we have recently found that particular bulk nanostructured metals can manage high strength and large tensile ductility. In such bulk nanostructured metals, unusual deformation modes different from normal dislocation slips were unexpectedly activated. Unusual <c+a> dislocations, deformation twins with nano-scale thickness, and deformation-induced martensite nucleated from grain boundaries in the bulk nanostructured Mg alloy, high-Mn austenitic steel, and Ni-C metastable austenitic steel, respectively. Those unexpected deformation modes enhanced strain hardening of the materials, leading to high strength and large tensile ductility. It was considered that the nucleation of such unusual deformation modes was attributed to the scarcity of dislocations and dislocation sources in each recrystallized ultrafine grain, which also induced discontinuous yielding with clear yield drop universally recognized in bulk nanostructured metals having recrystallized structures. For discussing the nucleation of different deformation modes in atomistic scales, the new concept of plaston which considered local excitation of atoms under singular dynamic fields was proposed. Based on the findings in bulk nanostructured metals and the concept of plaston, we proposed a strategy for overcoming the strength-ductility trade-off in structural metallic materials. Sequential nucleation of different deformation modes would regenerate the strain-hardening ability of the material, leading to high strength and large tensile ductility. The strategy could be a guiding principle for realizing advanced structural materials that manage both high strength and large tensile ductility.

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Pelleg, Joshua. "Dynamic Deformation—The Effect of Strain Rate." In Mechanical Properties of Nanomaterials. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74652-0_6.

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Fei, Kang, Jinxin Xu, Jian Qian, and Wei Hong. "Strain dependent dynamic properties of clay–gravel mixtures." In Advances in Energy Science and Equipment Engineering II. CRC Press, 2017. http://dx.doi.org/10.1201/9781315116174-69.

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Chiu, Y. W., X. H. Zhang, H. Hao, and N. Salter. "Dynamic Tensile Properties of Clay Brick at High Strain Rates." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8079-6_64.

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Wang, Yingchun, Shukui Li, and Jinxu Liu. "Strain rate-dependent and temperature- dependent compressive properties of 2DCf/SiC Composite." In Dynamic Behavior of Materials, Volume 1. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-8228-5_41.

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Ott, Kyle A., R. S. Armiger, A. C. Wickwire, A. S. Iwaskiw, and Andrew C. Merkle. "Determination of Simple Shear Material Properties of the Brain at High Strain Rates." In Dynamic Behavior of Materials, Volume 1. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4238-7_18.

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Conference papers on the topic "Small strain dynamic properties"

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Ajmera, Beena, Binod Tiwari, and Quoc-Hung Phan. "Small Strain Dynamic Properties of Silt-Clay Mixtures." In Geo-Congress 2020. American Society of Civil Engineers, 2020. http://dx.doi.org/10.1061/9780784482810.021.

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Bonifasi-Lista, Carlos, Spencer P. Lake, Michael S. Small, and Jeffrey A. Weiss. "Viscoelastic Properties of Human MCL in the Transverse Direction." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32621.

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Ligament viscoelasticity is an important determinant of tissue response to rapid loading and potential for injury, and may also play a role in tissue nutrition via fluid movement during loading/unloading. Because ligaments are anisotropic multiphase structures, it is likely that their viscoelastic response is direction-dependent. Previous efforts to describe ligament viscoelasticity have either reported experimental data without theoretical interpretation (e.g., [1]), or assumed a particular form for the viscoelastic response a priori [2–4]. Small sinusoidal perturbations about an equilibrium

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Shilo, Doron, Amir Mendelovich, and Haika Drezner. "Electromechanical Response of Large Strain Ferroelectric Actuators." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59107.

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One of the desired properties of actuators is large actuation strains, which also correlates with large work output per volume. This property becomes especially important in micro systems where small devices are required to produce relatively large strokes. The existing mechanisms for electromechanical actuation are limited to small actuation strains and hence recent years have seen a variety of attempts at achieving larger strain actuation. One such attempt, basing on 90 degree domain switching in ferroelectric crystals subjected to compression load and cyclic electric field, has recently bee

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Valle, Celestino, Beatriz I. Camacho, Kenneth H. Stokoe, and Alan F. Rauch. "Comparison of the Dynamic Properties and Undrained Shear Strengths of Offshore Calcareous Sand and Artificially Cemented Sand." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37091.

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Calcareous sand specimens were obtained from Campeche Bay in the southern Gulf of Mexico. The dynamic properties of these specimens were measured in resonant column and torsional shear (RCTS) tests, while the undrained shear strength was measured in unconsolidated-undrained (UU) triaxial compression tests. For weakly cemented, natural materials like this, it is difficult to obtain reliable properties from laboratory tests because sampling and handling of the soil specimens damages the particle cementation to an unknown degree. Artificially cemented specimens can be studied to better understand

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Valle, Celestino, and Kenneth H. Stokoe. "Laboratory Measurements of the Dynamic Properties of Intact and Remolded Offshore Clays From Campeche Bay." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37248.

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Comparisons of the dynamic properties of intact and remolded offshore clay specimens has been carried out. The clay specimens were obtained from Campeche Bay, offshore Mexico. Combined resonant column and torsional shear (RCTS) equipment at the University of Texas at Austin was used to determine the dynamic soil properties. Each soil specimen was tested twice, first in the intact condition and second as remolded material. Remolding was done by kneading the intact material and then reforming the specimen by compacting in a mold. The effects on the dynamic properties, expressed by shear modulus

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McClure, Michael J., Scott A. Sell, and Gary L. Bowlin. "Multi Layered Polycaprolactone-Elastin-Collagen Small Diameter Conduits for Vascular Tissue Engineering." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192895.

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The architecture of the vascular wall is highly intricate and requires unique biomechanical properties in order to function properly. Native artery is composed of a mix of collagens, elastin, endothelial cells (ECs), smooth muscle cells (SMC), fibroblasts, and proteoglycans arranged into three distinct layers: the intima, media, and adventitia. Throughout artery, collagen and elastin play an important role, providing a mechanical backbone, preventing vessel rupture, and promoting recovery while undergoing pulsatile deformations [1]. The low-strain mechanical response of artery to blood flow is

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Darvish, Kurosh, Erik G. Takhounts, and Jeff R. Crandall. "A Dynamic Method to Develop Nonlinear Viscoelastic Model of Brain Tissue." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0122.

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Abstract The objective of this paper is to present an instrumentation and data analysis method developed to determine a nonlinear viscoelastic model of brain tissue using a forced vibration technique. The application of this model is mainly for studying the injury mechanisms of brain tissue resulting from impacts to the head. Since the early 1950s several attempts have been recorded to model the mechanical behavior of brain tissue. Investigators have used a variety of quasi-static and dynamic experimental techniques in their studies and there is a general agreement that brain exhibits viscoela

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Tang, Weihan, Seunghun Baek, and Bogdan I. Epureanu. "Reduced Order Models for Blisks With Small and Large Mistuning and Friction Dampers." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-57850.

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In operation, rotating bladed disks (blisks) are often subject to high levels of dynamic loading, resulting in large amplitudes of forced vibrations especially at resonance. Moreover, variations in structural properties of individual sectors, referred to as mistuning, can lead to strain energy localization and can amplify forced responses. To prevent damages caused by high cycle fatigue, various frictional damping sources are introduced to dissipate vibration energy. Due to the nonlinear behavior of frictional contacts, conventional methods to study the dynamics of the blisk-damper systems are

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Daghash, Sherif, Osman E. Ozbulut, and Muhammad M. Sherif. "Shape Memory Alloy Cables for Civil Infrastructure Systems." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7562.

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Shape memory alloys (SMAs) have attracted a great deal of attention as a smart material that can be used in various civil engineering applications due to their favorable mechanical properties such as ability to undergo large deformations, high corrosion and fatigue resistance, good energy dissipating capacity, and excellent re-centering ability. In contrast to the use of SMAs in the biomedical, mechanical and aerospace applications, which requires mostly small diameter of material, the larger size bars are usually needed in a civil engineering application. It is well known that properties of l

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Lall, Pradeep, Di Zhang, and Vikas Yadav. "High Strain-Rate Constitutive Behavior of SAC305 Solder During Operation at High Temperature." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-39518.

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Leadfree solders have been used as interconnects in electronic packaging, due to its environmental friendly chemical property. However, those materials may experience high strain rates when subjected to shock and vibration. Consequently, failure will occur to electronics in those situations. Therefore, knowing the material properties of lead-free solders are extremely important, but research on mechanical behaviors of those solder alloys at high strain rates are scarce. Anand’s viscoplastic constitutive model has been widely used to describe the inelastic deformation behavior of solders in ele

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Reports on the topic "Small strain dynamic properties"

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Murray, Matthew, Trace Thornton, Stephen Rowell, and Clifford Grey. Dynamic material properties of Grade 50 steel : effects of high strain rates on ASTM A992 and A572 Grade 50 steels. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47445.

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Uniaxial tensile tests were conducted on American Society for Testing Materials International (ASTM) A992 and A572 Grade 50 steels at increasing strain rates to determine the material strength properties of structural members subjected to dynamic loadings. The increase in dynamic yield strength and ultimate tensile strength was determined to update design criteria within UFC 3-340-02, which are currently limited to ASTM A36 and A514 steels. The proposed updates will provide the necessary information required to design blast-resistant structures utilizing modern-day structural steels. The dynam

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Subramanian, K. H. Test Plan to Update SRS High Level Waste Tank Material Properties Database by Determining Synergistic Effects of Dynamic Strain Aging and Stress Corrosion Cracking. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/799694.

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Christman. L51577 Prediction of SCC Susceptibility Based on Mechanical Properties of Line Pipe Steels. Pipeline Research Council International, Inc. (PRCI), 1988. http://dx.doi.org/10.55274/r0010278.

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If a relationship between the deformation properties of a line pipe steel and its stress-corrosion cracking resistance can be established, then steels may be selected or designed for improved stress-corrosion resistance, based on their mechanical properties. Benefit: In this research program three line pipe steels, removed from long-term service, were examined to determine if there is a correlation between their mechanical properties and stress-corrosion cracking resistance. The hypothesis was that the steel with the greatest tendency for strain hardening, under cyclic and monotonic stress con

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Upadhyaya, Shrini, Dan Wolf, William J. Chancellor, Itzhak Shmulevich, and Amos Hadas. Traction-Soil Compaction Tradeoffs as a Function of Dynamic Soil-Tire Interation Due to Varying Soil and Loading Conditions. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7612832.bard.

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The objectives of this study were to investigate soil-pneumatic tire interaction and develop traction-soil compaction prediction model. We have developed an inverse solution technique that employs a response surface methodology to determine engineering properties of soil in-situ. This technique is useful in obtaining actual properties of soil in-situ for use in traction and soil compaction studies rather than using the values obtained in the laboratory by employing remolded and/or disturbed soil samples. We have conducted extensive field tests i the U.S. to develop semi-empirical traction pred

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Groeneveld, Andrew, and C. Crane. Advanced cementitious materials for blast protection. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/46893.

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Advanced cementitious materials, commonly referred to as ultra-high performance concretes (UHPCs), are developing rapidly and show promise for civil infrastructure and protective construction applications. Structures exposed to blasts experience strain rates on the order of 102 s-1 or more. While a great deal of research has been published on the durability and the static properties of UHPC, there is less information on its dynamic properties. The purpose of this report is to (1) compile existing dynamic property data—including compressive strength, tensile strength, elastic modulus, and energ

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Tyson. L52337 Weld Design Testing and Assessment Procedures for High Strength Pipelines. Pipeline Research Council International, Inc. (PRCI), 2011. http://dx.doi.org/10.55274/r0010448.

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This is the last report of a�c reports detailing the small-scale mechanical testing performed on the trial welds in this consolidated program. This report summarizes and compares the results of all of the mechanical tests applied primarily to welds of rounds 1 and 2, including tensile results and their correlation with microstructure, Charpy test results, conventional (through-thickness-notched) toughness tests, and low-constraint toughness tests. The reports contains a summary of the mechanical properties of the experimental single and dual torch GMAW-P X100 pipe welds prepared for this conso

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Michalopoulos, C. D. PR-175-420-R01 Submarine Pipeline Analysis - Theoretical Manual. Pipeline Research Council International, Inc. (PRCI), 1985. http://dx.doi.org/10.55274/r0012171.

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Describes the computer program SPAN which computes the nonlinear transient response of a submarine pipeline, in contact with the ocean floor, to wave and current excitation. The dynamic response of a pipeline to impact loads, such as loads from trawl gear of fishing vessels, may also be computed. In addition, thermal expansion problems for submarine pipelines may be solved using SPAN. Beam finite element theory is used for spatial discretization of the partial differential equations governing the motion of a submarine pipeline. Large-deflection, small-strain theory is employed. The formulation

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Snyder, Victor A., Dani Or, Amos Hadas, and S. Assouline. Characterization of Post-Tillage Soil Fragmentation and Rejoining Affecting Soil Pore Space Evolution and Transport Properties. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580670.bard.

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Tillage modifies soil structure, altering conditions for plant growth and transport processes through the soil. However, the resulting loose structure is unstable and susceptible to collapse due to aggregate fragmentation during wetting and drying cycles, and coalescense of moist aggregates by internal capillary forces and external compactive stresses. Presently, limited understanding of these complex processes often leads to consideration of the soil plow layer as a static porous medium. With the purpose of filling some of this knowledge gap, the objectives of this Project were to: 1) Identif

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Moghtadernejad, Sara, Ehsan Barjasteh, Ren Nagata, and Haia Malabeh. Enhancement of Asphalt Performance by Graphene-Based Bitumen Nanocomposites. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.1918.

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As the State of California continues to grow, demand for enhanced infrastructure such as roadways and highways escalates. In view of the current average highway lifespan of 15–20 years, the improvement of asphalt binders leads to material sustainability by decreasing required maintenance and increasing the lifespan of roadways. In the present investigation, enhancement of asphalt binder properties was achieved by different methods of mixing varying compositions of graphene nanoparticles with an SBS polymer and asphalt binder. Additionally, experimental evaluation and comparison of the rheologi

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Leveque, E., M. Zarea, R. Batisse, and P. Roovers. IPC-BST-R01 Burst Strength of Gouges in Low Toughness Gas Transmission Pipes. Pipeline Research Council International, Inc. (PRCI), 2006. http://dx.doi.org/10.55274/r0011781.

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EPRG research aimed at establishing a limit on the toughness value that separates toughness-dependent from toughness-independent failure behavior. More specifically, one objective is to evaluate the toughness-dependent Battelle formula for burst resistance of gouges for (very) low toughness values. This mainly experimental project checks this behavior on several gas transmission pipes, a small diameter one, 150 mm, a medium diameter one, 350 mm, and a large diameter one, 900 mm. Pipe material is carefully characterized in terms of tensile properties, Charpy energy, and shear area. Then, based

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