Relevant bibliographies by topics / Modified strength criterion

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Modified strength criterion'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Modified strength criterion"

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Liu, Yuhang, Ruiqiang Bai, and Dongqing Li. "Study on the Strength and Yield Behaviors of Modified Silty Clay." Geofluids 2022 (July 16, 2022): 1–17. http://dx.doi.org/10.1155/2022/6337345.

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To study the strength and yield behaviors of the modified soil, a series of triaxial compression tests were carried out for modified silty clay with different contents of red Pisha sandstone and carbide slag, respectively. The test results showed that the strength variation of the modified soils are obviously nonlinear with the hydrostatic pressure increasing, and the nonlinear strength can be described by a modified critical state function. Then, the friction angle and the cohesive force of the modified soils were obtained according to the nonlinear Mohr-Coulomb equation, and the relationship
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Zheng, Yonglai, and Shuxin Deng. "Failure Probability Model considering the Effect of Intermediate Principal Stress on Rock Strength." Mathematical Problems in Engineering 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/960973.

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A failure probability model is developed to describe the effect of the intermediate principal stress on rock strength. Each shear plane in rock samples is considered as a micro-unit. The strengths of these micro-units are assumed to match Weibull distribution. The macro strength of rock sample is a synthetic consideration of all directions’ probabilities. New model reproduces the typical phenomenon of intermediate principal stress effect that occurs in some true triaxial experiments. Based on the new model, a strength criterion is proposed and it can be regarded as a modified Mohr-Coulomb crit
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Grishin, V., M. Glebova, and N. Guseva. "Strength determination of metal composite multiple-row joints." E3S Web of Conferences 376 (2023): 01001. http://dx.doi.org/10.1051/e3sconf/202337601001.

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The results obtained using standard and improved (modified) calculation methods for load distribution on fasteners and joints strength are analyzed on the examples of four types of multiple-row metal-composite joints with cover plates of various thickness and various diameters of fasteners. A modified technique based on the Nuismer criterion is used to determine the load-bearing capacity. It was determined that for all joints the difference between the calculation results and the experiment is 14 - 26% using this criterion. It’s desirable to use a modified scheme of the Nuismer criterion to im
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ZHANG, Qiang, Shuilin WANG, Xiurun GE, and Hongying WANG. "Modified Mohr-Coulomb strength criterion considering rock mass intrinsic material strength factorization." Mining Science and Technology (China) 20, no. 5 (2010): 701–6. http://dx.doi.org/10.1016/s1674-5264(09)60266-0.

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Xiao, Yang, HanLong Liu, and Robert Y. Liang. "Modified Cam-Clay model incorporating unified nonlinear strength criterion." Science China Technological Sciences 54, no. 4 (2011): 805–10. http://dx.doi.org/10.1007/s11431-011-4313-4.

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Liao, Mengke, Yuanming Lai, and Chong Wang. "A strength criterion for frozen sodium sulfate saline soil." Canadian Geotechnical Journal 53, no. 7 (2016): 1176–85. http://dx.doi.org/10.1139/cgj-2015-0569.

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Salt content has been proven to be an important influencing factor on the mechanical properties of frozen saline soils, whose strength criterion is different from that of unfrozen saline soils or frozen soils without salts. In this paper, a series of conventional triaxial tests are carried out for frozen saline soils with sodium sulfate at a temperature of –6 °C. A strength criterion of the frozen saline soils, including the influence of salt content, is established by using the generalized nonlinear strength theory. Based on conventional triaxial test results, a modified hydrostatic pressure
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Wang, Yalei, Jinming Xu, Junshuai Xu, and Chuanjiang Zhong. "Estimation of Rock Burst Grades Using Rock Mass Strength." Advances in Civil Engineering 2020 (July 18, 2020): 1–14. http://dx.doi.org/10.1155/2020/2517459.

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The traditional rock burst estimation method is usually based on the σc (rock strength) in practice, while the actual occurrence of rock burst depends more on the structure and strength of the rock mass. In this work, the actual rock bursts occurred in a railway tunnel project in Western China, and the σcm (rock mass strength) was calculated by the generalized Hoek–Brown criterion. According to the actual situation of rock bursts, a modified rock burst estimation criterion using the ratio of σcm to σmax (maximum geostress) was proposed. The influence of randomness on the reliability of rock bu
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Zhang, Jian Yu, Rui Bao, and Bin Jun Fei. "Modified Swift Criteria for Residual Strength of Multiple Site Damage Structure." Key Engineering Materials 417-418 (October 2009): 881–84. http://dx.doi.org/10.4028/www.scientific.net/kem.417-418.881.

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As more aircrafts reach or exceed their design life, it is becoming very important to research multiple cracks damage, especially the multiple site damage (MSD) in order to re-evaluate their service life and damage tolerance/durability performance. The existing of MSD may remarkably reduce the residual strength of an aerospace structural component than those with a singe lead crack. This study investigated the residual strength of aluminum alloy sheet with MSD through three types of aluminum specimens test. Aluminum panels with bare collinear constant diameter holes were chosen as specimens. A
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Deng, Xianghui, Yuncai Wang, Rui Wang, Daohong Xia, and Zhiqing Zhao. "Application of Modified Hoek–Brown Strength Criterion in Water-Rich Soft Rock Tunnel." Geofluids 2021 (June 7, 2021): 1–12. http://dx.doi.org/10.1155/2021/5552791.

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When a tunnel is excavated in the water-rich soft rock stratum, the strength of the soft rock is greatly reduced due to the seepage of groundwater. The condition may result in engineering accidents, such as large deformation, limit invasion, and even local collapse of the tunnel. Therefore, it is very important to research the stability of the surrounding rock in the water-rich soft rock tunnel. The water-rich disturbance factor considering the seepage influence of groundwater and blasting disturbance is proposed, and the generalized Hoek–Brown strength criterion is modified on the basis of th
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Shi, Yufan, Tianshou Ma, Dongyang Zhang, Yingjie Chen, Yang Liu, and Changsong Deng. "Analytical Model of Wellbore Stability Analysis of Inclined Well Based on the Advantageous Synergy among the Five Strength Criteria." Geofluids 2023 (February 6, 2023): 1–23. http://dx.doi.org/10.1155/2023/2201870.

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The proper drilling mud density is vital for wellbore stability maintenance, which relies on both stress distribution on the borehole wall and rock strength. Thus, the selection of rock strength criterion is vital for wellbore stability analysis (WSA), and several strength criteria have been developed and employed to perform WSA, but the real collapse pressure does not comply with any single strength criterion. Therefore, to accurately predict the critical mud weight against wellbore collapse, an analytical model of WSA was proposed for inclined wells based on the advantageous synergy among th
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Dissertations / Theses on the topic "Modified strength criterion"

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Жигилій, Дмитро Олексійович, Дмитрий Алексеевич Жигилий та Dmytriy Oleksiyovych Zhyhyliy. "Конструкційна міцність комбінованих балонів високого тиску". Thesis, Сумський державний університет, 2010. http://essuir.sumdu.edu.ua/handle/123456789/3775.

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Дисертація на здобуття вченого ступеня кандидата технічних наук за фахом 05.02.09 – динаміка і міцність машин. – Сумський державний університет, Суми 2010. На основі дискретно-структурної теорії анізотропних пластин і оболонок розроблена методика розв’язання геометрично нелінійних контактних задач при розрахунку на міцність багатошарових анізотропних пластин і оболонок з урахуванням як ідеального, так і неідеального контакту між шарами. Отримано розв’язок широкого класу контактних задач, виявлені основні закономірності зміни напруженого стану і контактного тиску в зоні локальних ділянок непр
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Books on the topic "Modified strength criterion"

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Doruk, Piril. Analysis of the laboratory strength data using the original and modified Hoek-Brown failure criteria. National Library of Canada = Bibliothèque nationale du Canada, 1991.

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Book chapters on the topic "Modified strength criterion"

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da Fontoura, Sergio A. B. "Lade and Modified Lade 3D Rock Strength Criteria." In The ISRM Suggested Methods for Rock Characterization, Testing and Monitoring: 2007-2014. Springer International Publishing, 2012. http://dx.doi.org/10.1007/978-3-319-07713-0_23.

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Yi, Wei, and Hanhua Xu. "Research on Total Shear Strength for Rock Masses Considering Intermittent Joints and Connectivity Rate." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220389.

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The shear strength of intermittent joints in rock masses is significantly influenced by the stability of blocky rock system. The connection rate for a single rock joint is crucial for mechanical properties, such as shear strength. To examine the impact of connectivity rate on the structural strength and fracture evolution of intermittent joints, direct shear test is conducted on artificial coplanar intermittent joints with various connectivity rates under numerous different normal stresses. In this paper, a number of theoretical criteria for predicting the shear strength of intermittent joints
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Hayward, Benjamin. "A Proposed Closest Connection Test—The (Modified) Art 4 Rome Convention Rule." In Conflict of Laws and Arbitral Discretion. Oxford University Press, 2017. http://dx.doi.org/10.1093/law/9780198787440.003.0006.

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Abstract Chapter 5 recommended the closest connection test as the basis for reforming conflicts of laws in international commercial arbitration. This chapter analyzes six distinct variations of the closest connection test. It then proposes a (modified) Art 4 Rome Convention rule as the specific basis for reform. The three modifications recommended are: addition of the word ‘clearly’ or ‘manifestly’ to the original text of Art 4(5) Rome Convention, to confirm the strength of the Art 4(2) Rome Convention characteristic performance presumption; substitution of a power to apply rules of law, for t
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Zhu, Yong, Hui Zhou, Chuanqing Zhang, et al. "Revisiting Protodyakonov’s Pressure Arch Theory." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde230726.

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Protodyakonov’s pressure arch theory (PPAT) has been widely used in rock engineering design owing to its conciseness and clear engineering concept. However, the applicability of this theory to soil formations has not yet reached a consensus, mainly because of the lack of criterion for stable arching in soil and the fact that soil has a much lower strength than rocks. To fill this gap, the PPAT based on arch assumptions and arch stability requirements is revisited in this paper. A modified arch equation (M-PPAT) is established considering the lateral stress and arch foot resistance. Expressions
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Prasad, Kanika, and Rishi Dwivedi. "Application of Modified Similarity-Based Method for Cotton Fiber Selection." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8579-4.ch007.

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In today's business environment, sustainability is one of the most significant issues that organizations needs to deal with. Fiber choice is often the initial stride that designers and product developers will consider in minimizing the ecological impact of a garment while achieving sustainability. Cotton fiber, whether alone or blended with some other fiber, is being extensively used in textile industries. However, the selection of optimal cotton fiber depends on its several properties like length, strength, fineness, length uniformity, short fiber content, etc., thus making this selection pro
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Scalia IV Joseph, Benson Craig H., and Edil Tuncer B. "Bentonite-Polyacrylate Nanocomposites for Containment of Aggressive Liquids." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2013. https://doi.org/10.3233/978-1-61499-297-4-63.

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The containment of high ionic strength leachates by bentonite-polyacrylate composites is presented. Sodium bentonite (Na-bentonite) was modified to control flow and contaminant migration in containment applications where natural Na-bentonite barriers, such as geosynthetic clay liners (GCLs), will not adequately control flow and contaminant migration. Polyacrylate was combined with Na-bentonite by in situ polymerization of acrylic acid within bentonite slurry to create a bentonite-polymer nanocomposite (BPN). BPN swells more than two times more than Na-bentonite from a GCL (73 vs. 30.5 mL/2 g),
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Pereira, Graça de Maria Abreu, Jordana Almeida Brito, Rayenne Augusta Mota Ferreira, Andres Felipe Millan Cardenas, Edilausson Moreno Carvalho, and Cyrene Piazera Silva Cost. "COMPOSITE BOND RESISTANCE TO DENTIN AFTER TREATMENT WITH SILVER DIAMINO FLUORIDE: A SYSTEMATIC REVIEW." In Science, Society and Emerging Technologies. Amplla Editora, 2024. http://dx.doi.org/10.51859/amplla.sset.2124-10.

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The purpose of this systematic review was to examine the possible impact of silver diamine fluoride treatment on the bond strength of composite resin to dentin, with the aim of providing relevant insights for the appropriate use of this product in dental practice. The research was conducted through queries to the electronic databases EBSCOhost and Google Scholar from 2011 to 2021, using the search strategy "silver diamine fluoride” AND “adhesion” AND “dentin”. The identified articles were evaluated independently by three blind evaluators, following inclusion criteria that covered in vitro stud
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Conference papers on the topic "Modified strength criterion"

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Roy, Samit, Marina Q. Smith, Steve C. Grigory, Hervé R. Couque, and Melvin F. Kanninen. "The Development of Methodologies for Determining the Residual Strength of Corroded Line Pipe under Combined Loading." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95023.

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Abstract This paper contains the results obtained from a three phase study of the integrity of corroded oil transmission pipelines under combined load conditions. The study was necessary for two reasons. First, the current and potential modified ANSI/ASME B31G criteria for corroded pipe are empirically drawn from experimentations on pipes much smaller in diameter and lower in grade of steel than those used in the oil transmission pipelines. Second, the current criterion does not account for the effects of axial bending that could occur in buried pipes due to settlement, and for the axial compr
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Stauder, Anne-Laure, and William H. Hartt. "Cathodic Protection of Pre-Tensioned Concrete: Part I - Brittle Fracture Propensity of Corrosion Damaged Prestressing Tendon Wire." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98635.

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Abstract Constant extension rate tests were performed upon prestressing wire specimens in air and in saturated Ca(OH)2 solution at -0.90 and -1.30 v (SCE) i n order to investigate the influence of various levels of precorrosion upon mechanical properties and fracture behavior. It was determined that ultimate tensile strength (UTS) was reduced to a greater extent in the case of specimens which exhibited layer corrosion compared to those with simulated pits. The UTS of layer corroded specimens was not significantly influenced by corrosion morphology acuity but, instead, correlated with the magni
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Valle, Luísa Vicari do, Eduarda Marques de Azevedo, and José Antônio da Cunha Ponciano Gomes. "Materials Selection of Corrosion Resistant Alloys in Produced Water Based in Electrochemical Techniques and Chemical Composition Index." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13353.

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Abstract Produced water can be much more aggressive in terms of corrosion than sea water, presenting high levels of chloride and carbon dioxide. In addition to bring corrosion risks for oil and gas production systems, it contains harmful components to environment. This way, it is crucial a materials selection that guarantees a good performance of produced water treatment systems. Although there are many studies evaluating the strength of stainless steels in seawater medium, resistance of these materials in produced water has not been fully investigated. Pitting Resistance Equivalent Number (PR
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Ning, Jing, Brent Sherar, and Yuhchae Yoon. "An Evaluation of the Ripple-Slow Strain Rate (R-SSR) Technique for Environmentally Assisted Cracking (EAC) Qualification of Modified 13Cr-110 Stainless Steel." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16675.

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Abstract The ripple-slow strain rate (R-SSR) technique is an alternative screening test to the conventional-SSR (C-SSR) method. Both methods assess susceptibility to environmentally assisted cracking (EAC) of corrosion resistant alloys (CRAs) and involve loading a NACE TM0198-compliant tensile specimen to 100% AYS (0.2% proof stress of actual yield strength) at a slowly applied extension rate. While the C-SSR specimen is monotonically strained to failure, a R-SSR tensile specimen is typically loaded to 100% AYS and subsequently cycled between 80% and 100% AYS until failure or for up to 250 cyc
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Bineshian, Hossein, and Zahra Bineshian. "Prediction of Triaxial Compressive Strength of Geomaterials Based on a Failure Criterion." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83036.

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Ramamurthy et al strength criterion is applicable only for compression. Tensile strength and unconfined compressive strength cannot be calculated by the criterion. Ramamurthy et al criterion contains two parameters as inherent constants of geomaterials that are known as B and α. A popular method to predict the strength by a certain criterion is using the proposed values for the criterion’s parameters, authors in this paper suggested suitable practical values for the parameters and a precise equation for B for a wide range of geomaterials. Also especial consideration has been pertained for soft
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Hertelé, Stijn, and Otto Jan Huising. "Revision of Material Requirements of the EPRG Tier 2 Guidelines for Weld Defect Acceptance." In 2024 15th International Pipeline Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/ipc2024-121969.

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Abstract The 2014 modification of the EPRG Tier 2 guidelines for the assessment of girth weld defects includes a modified criterion for weld strength overmatching. First experiences have shown it to be highly restrictive and to potentially limit the use of manual girth welding techniques. Recognizing this, EPRG launched a project to develop a sound justification to a potential new modification of the EPRG weld strength criteria, supported by a database of mechanical weld characteristics provided by EPRG members and a probabilistic analysis. This paper summarizes the findings of the project. Th
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Sun, Wei, Guangqing Zhang, Xiaojia Xue, and Wenbin Chen. "Rock Tensile Properties and Modification of Tensile Strength Criterion Under Confining Pressure." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0587.

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ABSTRACT To reveal the influence of confining pressure on the tensile properties of rock, Brazilian disc tests for tight sandstone and granite under different confining pressures were carried out. The tensile failure characteristics were analyzed, and the tensile strength-confining pressure curves were obtained. The maximum tensile stress criterion was modified considering the influence of confining pressure, which was incorporated into ABAQUS, and characteristics of hydraulic fractures under different in-situ stress conditions were studied. The results reveal that (1) under the confining pres
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SUCKOW, T. "Damage prediction in roll forming of the high strength aluminum alloy AA7075." In Material Forming. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902479-86.

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Abstract. The high-strength AA7075 alloy offers great potential for lightweight construction thanks to its high specific strength. However, high strength and low ductility are challenging for forming the material in the peak-aged T6-condition in terms of material failure and springback. Therefore, this alloy is usually formed in temperature-supported process routes, which poses major challenges for process design. For cold forming of the alloy in the T6-condition, a reliable prediction of material failure is required in terms of process design. Within this study, this is achieved by applying t
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Khosravanian, Rasool, and Bernt Sigve Aadnøy. "Uncertainty Evaluation of Wellbore Stability Using Comparative Rock Strength Criterions." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18052.

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Abstract The requirement of uncertainty analysis has shifted the transformation of sensitivity analysis from the deterministic area to the stochastic area.Geomechanical wellbore integrity problems during drilling operation can occur due to wellbore shear failure or tensile failure. To guarantee wellbore integrity, breakout and fracture geomechanical analysis is essential to estimate the Safe Mud Weight Window (SMWW). Wellbore stability problems causes many challenges in a drilling operation, such as pipe sticking, wellbore collapse, fluid loss and poor cement jobs. A drilling engineer must min
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Trzeciak, M., and H. Sone. "Polyaxial Failure Criteria in Borehole Breakout Stress Analysis." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0074.

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ABSTRACT Analysis of borehole wall failures, breakouts, is the primary method of constraining the maximum horizontal stress in deep wells. To estimate stress using the breakout method, one needs to measure the breakout width from image or caliper logs, and use a failure theory to predict stress that led to the development of the measured breakout. Most commonly, Mohr-Coulomb failure criterion is used which disregards the influence of intermediate stress on strength. Different polyaxial criteria have been proposed to include this effect. Here, we first review selected polyaxial criteria: Drucke
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Reports on the topic "Modified strength criterion"

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Vieth and Kiefner. L51609 A Modified Criterion for Evaluating the Remaining Strength of Corroded Pipe. Pipeline Research Council International, Inc. (PRCI), 1989. http://dx.doi.org/10.55274/r0011316.

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From its inception, the B31G criterion was intended to embody a large factor of safety to protect pipelines from failure. Experience has shown that the amount of conservatism embodied in the criterion is excessive, resulting in the removal or repair of more pipe than is necessary to maintain adequate integrity. Therefore, it is desirable to have a modified criterion that will still preserve adequate pipeline integrity but will result in less removal of pipe. A modified criterion that meets this requirement is described in this report. A new and improved criterion was desired because of the kno
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Kiefner and Vieth. L51688B A Modified Criterion for Evaluating the Remaining Strength of Corroded Pipe. Pipeline Research Council International, Inc. (PRCI), 1989. http://dx.doi.org/10.55274/r0011347.

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The RSTRENG software program and users manual were developed to enhance the usability and options available in the original program RSTRENG. RSTRENG was developed as part of AGA PR-3-805, "A Modified Criterion for Evaluating the Remaining Strength of Corroded Pipe." RSTRENG can be used by pipeline operators to evaluate the remaining strength of corroded pipe. The required user inputs are pipe diameter, wall thickness, grade of the pipe material, and a series of pit depth and length measurements. The new version of the RSTRENG software actually produces the same results as the first version; th
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Kiefner and Vieth. L51688 RSTRENG2 (DOS Version) User's Manual. Pipeline Research Council International, Inc. (PRCI), 1993. http://dx.doi.org/10.55274/r0011339.

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The RSTRENG 3.0 (Windows Version) software program and users manual were developed to enhance the usability and options available in the original program RSTRENG. RSTRENG was developed as part of AGA PR-3-805, "A Modified Criterion for Evaluating the Remaining Strength of Corroded Pipe." Like the original version of RSTRENG, RSTRENG 3.0 can be used by pipeline operators to evaluate the remaining strength of corroded pipe. The required user inputs are pipe diameter, wall thickness, grade of the pipe material, and a series of pit depth and length measurements. The new version of the software act
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Zhu, Xian-Kui, Brian Leis, and Tom McGaughy. PR-185-173600-R01 Reference Stress for Metal-loss Assessment of Pipelines. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011516.

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This project focused on quantifying the reference stress to be used in predictive models for assessing the effects of metal loss on pipeline integrity. The results of this project will work in concert with the outcomes of project EC-2-7 that examined sources of scatter in metal-loss predictions with respect to the metal-loss defect geometry. The methodology for developing a new reference stress included empirical and finite element analyses along with comparison of full-scale experimental results that indicate the failure behavior of defect-free pipe has dependence on the strain hardening rate
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Leis, Brian, Xian-Kui Zhu, and Tom McGaughy. PR185-173611-R01 Applicability of Existing Metal-Loss Criteria to Low-Hardening Steels. Pipeline Research Council International, Inc. (PRCI), 2020. http://dx.doi.org/10.55274/r0011652.

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This two-year project has evaluated the applicability of B31G and Modified B31G corrosion assessment criteria for applications to low-hardening pipe steels, whereas these criteria were originally developed and calibrated for high-hardening steels common in lower strength grades and in older steel production. This project builds upon work completed in EC-2-6 and EC-2-7 by trending changes in pipe properties over time, and by quantifying the role of the flow response, including the influence of strain hardening on failure response and predicted failure pressure for metal loss defects in pipeline
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Kiefner and Kolovich. PR-218-113605-R01 Evaluation of Regulatory Proposal for Responding to Pipeline Corrosion Metal Loss. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010783.

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This report assesses the appropriateness of a regulatory proposal by the Pipeline and Hazardous Materials Safety Administration (PHMSA) for response criteria for corrosion anomalies detected by in-line inspection in non-high-consequence areas (non-HCAs). The proposed response criteria are stricter than those that pipeline operators are currently required to use for anomalies detected in high-consequence areas (HCAs). Presented herein are the results of an evaluation of the technical basis for response criteria for metal-loss anomalies detected by in-line inspection. The evaluation considered u
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Becker, Peter J. Using the Light Weight Deflectometer for Performance-Based Quality Assurance Testing of Cement Modified Subgrades. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317304.

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This report documents the findings from SPR-4230 (Alternative Quality Assurance Methods for Compacted Subgrade). The main objective of SPR-4230 involved establishing performance-related quality assurance (QA) test methods for pavement subgrade construction. Because INDOT generally prefers specifying subgrade treatment type IBC (i.e., 14-in. cement modified subgrade), this study focused on performance-based QA test methods for constructing cement modified subgrade. Moreover, INDOT prefers using light weight deflectometer (LWD) for chemically modified subgrade construction acceptance, so this st
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Treadwell, Jonathan R., Mingche Wu, and Amy Y. Tsou. Management of Infantile Epilepsies. Agency for Healthcare Research and Quality (AHRQ), 2022. http://dx.doi.org/10.23970/ahrqepccer252.

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Objectives. Uncontrolled seizures in children 1 to 36 months old have serious short-term health risks and may be associated with substantial developmental, behavioral, and psychological impairments. We evaluated the effectiveness, comparative effectiveness, and harms of pharmacologic, dietary, surgical, neuromodulation, and gene therapy treatments for infantile epilepsies. Data sources. We searched Embase®, MEDLINE®, PubMed®, the Cochrane Library, and gray literature for studies published from January 1, 1999, to August 19, 2021. Review methods. Using standard Evidence-based Practice Center me
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Steele, Dale W., Eduardo L. Caputo, Ghid Kanaan, et al. Diagnosis and Management of Obsessive Compulsive Disorders in Children. Agency for Healthcare Research and Quality (AHRQ), 2024. https://doi.org/10.23970/ahrqepccer276.

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Background. Obsessive compulsive disorder (OCD) is a common, chronic, and impairing psychiatric disorder that often begins in childhood or adolescence. Early identification and treatment of OCD is important to prevent a cascade of developmental disruptions lasting into adulthood. The 2012 American Academy of Child and Adolescent Psychiatry (AACAP) Practice Parameter recommends cognitive behavioral therapy that incorporates exposure and response prevention (ERP) as a first-line treatment for mild-to-moderate OCD in youth and recommends combined treatment with ERP (if feasible) and a selective s
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A SURROGATE MODEL TO ESTIMATE THE AXIAL COMPRESSIVE CAPACITY OF COLD-FORMED STEEL OPEN BUILT-UP SECTIONS. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.316.

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This paper proposed a surrogate model to simplify the process of estimating the axial compressive capacity of cold-formed steel (CFS) open built-up sections composed of lipped channels with different section sizes, thickness, length, and connector spacing. The surrogate model was developed based on the current design methods, i.e., the Effective Width Method (EWM) and Direct Strength Method (DSM), which are codified in the North American Specification AISI S100-16. This new model features two surface regression equations with a boundary inequality criteria, anchored on two important parameters
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