Relevant bibliographies by topics / Weakest link theory

Contents

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

Academic literature on the topic 'Weakest link theory'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Weakest link theory"

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Zok, Frank W. "On weakest link theory and Weibull statistics." Journal of the American Ceramic Society 100, no. 4 (2017): 1265–68. http://dx.doi.org/10.1111/jace.14665.

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Madsen, Borg, and Andrew H. Buchanan. "Size effects in timber explained by a modified weakest link theory." Canadian Journal of Civil Engineering 13, no. 2 (1986): 218–32. http://dx.doi.org/10.1139/l86-030.

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This paper represents a new approach to size effects in timber. The design process in Canadian Standards Association code CAN3-086-M80 allows for size effects in shear and in tension but not in bending. A large number of bending test results arc analyzed in this paper to show that size effects in bending are very important. A modification is made to the traditional weakest link theory for size effects to reflect the anisotropic nature of timber. Good agreement is obtained between tests and theory. The theory enables us to compare tests with different spans and (or) load configurations with an
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Chojnowska, Małgorzata, and Iwona Królikowska. "HUMAN FACTOR — THE WEAKEST LINK OF SECURITY SYSTEM." Annual of Navigation 20, no. 1 (2013): 5–24. http://dx.doi.org/10.2478/aon-2013-0001.

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ABSTRACT The authors of the following article reveal what happens with so-called ‘human factor’ on board during routine work as well as in life-threatening situations. They analyze two groups of variables, which determine safe behaviors: subjective (emotional, temperamental, sense of control, vocational experiences, individual experiences in emergencies) and social conditioning (organizational culture of workplace, safety culture). They point out, that in todays’ maritime education the analysis of human behaviors on board and broadening of ideals of maritime safety culture, are being devoted n
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Valcea, Sorin, Maria Hamdani, and Bret Bradley. "Weakest Link Goal Orientations and Team Expertise: Implications for Team Performance." Small Group Research 50, no. 3 (2019): 315–47. http://dx.doi.org/10.1177/1046496418825302.

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Using prior theory and research, we argue that a team member with a low learning goal or a high avoid orientation is detrimental for the expertise–performance relationship in team tasks. Results from a study of 82 teams showed that, after controlling for goal orientation team composition, expertise improved team performance only when teams did not have a weak link team member. In contrast, when teams had this weak link teammate, expertise did not improve performance, and in some cases damaged it. Implications for theory and practice are discussed.
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Gélébart, Lionel. "Grain size effects and weakest link theory in 3D crystal plasticity simulations of polycrystals." Comptes Rendus. Physique 22, S3 (2021): 1–18. http://dx.doi.org/10.5802/crphys.53.

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Tomaszewski, Tomasz, Przemysław Strzelecki, Adam Mazurkiewicz, and Janusz Musiał. "Probabilistic Estimation of Fatigue Strength for Axial and Bending Loading in High-Cycle Fatigue." Materials 13, no. 5 (2020): 1148. http://dx.doi.org/10.3390/ma13051148.

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In this paper, the sensitivity to the type of loads (axial and bending loading) of selected construction materials (AW6063 T6 aluminum alloy, S355J2+C structural steel, and 1.4301 acid-resistant steel) in high-cycle fatigue was verified. The obtained S-N fatigue characteristics were described by a probabilistic model of the 3-parameters Weibull cumulative distribution function. The main area of research concerned the correct implementation of the weakest link theory model. The theory is based on a highly-stressed surface area and a highly-stressed volume in the region of the highest stresses.
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Vu, Chi Cong, Jérôme Weiss, Olivier Plé, and David Amitrano. "Statistical Size Effects on Compressive Strength and Mechanical Behavior of Concrete." Key Engineering Materials 754 (September 2017): 317–20. http://dx.doi.org/10.4028/www.scientific.net/kem.754.317.

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The size effect on strength of concrete has been studied for a long time from various approaches. In particular, the weakest-link theory remains nowadays the basic tool to interpret statistical size effects, i.e. how the probability of failure under a given stress depends on external size. The main shortcoming of Weibull’s theory is that the activation of fracture from the weakest flaw is assumed to set the final strength, i.e. possible interactions between microcracks and defects during progressive damage are implicitly neglected. The objective of this study is to determine experimentally the
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Lam, Frank. "Length effect on the tensile strength of truss chord members." Canadian Journal of Civil Engineering 27, no. 3 (2000): 481–89. http://dx.doi.org/10.1139/l99-084.

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Length effects on the tensile strength of multiple member truss chords have been studied. Simulation and reliability studies have been presented to evaluate the impact of length and multiple member effects on the target safety index for tensile failure. Results indicate significant length effect can be expected for long multiple tension chord members. Based on the Weibull weakest link theory, length effect adjustment parameters have been established. Further simulation and reliability studies have demonstrated the robustness of the proposed length effect adjustment procedures. A procedure has
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Sellier, Alain, and Benoı̂t Bary. "Coupled damage tensors and weakest link theory for the description of crack induced anisotropy in concrete." Engineering Fracture Mechanics 69, no. 17 (2002): 1925–39. http://dx.doi.org/10.1016/s0013-7944(02)00069-3.

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WORMSEN, A., B. SJÖDIN, G. HÄRKEGÅRD, and A. FJELDSTAD. "Non-local stress approach for fatigue assessment based on weakest-link theory and statistics of extremes." Fatigue & Fracture of Engineering Materials and Structures 30, no. 12 (2007): 1214–27. http://dx.doi.org/10.1111/j.1460-2695.2007.01190.x.

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Dissertations / Theses on the topic "Weakest link theory"

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Svärd, Henrik. "Topology Optimization of Fatigue-Constrained Structures." Doctoral thesis, KTH, Optimeringslära och systemteori, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-163575.

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Fatigue, or failure of material due to repeated cyclic loading, is one of the most common causes of mechanical failures. The risk of fatigue in a load carrying component is often lowered by adding material, thereby reducing stresses. This increases the component weight, reducing the performance of the component and increasing its manufacturing cost. There is thus a need to design components to be as light as possible, while keeping the risk of fatigue at a low enough level, i.e. there is a need for optimization of the component subject to fatigue constraints.  This thesis deals with design aga
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Kovář, Jaroslav. "Pravděpodobnosti porušení keramické součásti s využitím Weibullovy teorie nejslabšího článku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382549.

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This thesis compares Weibull weakest link theory with inclusion of one and all three principal stresses. Principal stresses needed for this theory were calculated with finite element method. The informational research is in the introduction of this thesis. It includes ceramic materials, Weibull weakest link theory, Gaussian quadrature over spherical surface and ceramic head of hip joint endoprothesis. Theoretical part is used for next calculations of probability of failure. The probability of failure of ceramic rod loaded by four-point bending is calculated in first calculations. This task is
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Books on the topic "Weakest link theory"

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Cohen, Jeffrey A., Justin J. Mowchun, Victoria H. Lawson, and Nathaniel M. Robbins. A 35-Year-Old Man with Progressive Left-Hand Weakness. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190491901.003.0001.

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Multifocal motor neuropathy (MMN) may be mistaken for common entrapment neuropathies, although absence of significant sensory findings is a helpful clue to the diagnosis. Multifocal motor neuropathy may also mimic motor neuron disease. Electrophysiological evidence of conduction block at a nerve site not typically prone to compression is consistent with MMN. A positive anti-GM1 antibody also supports the diagnosis. First-line treatment of MMN is intravenous immunoglobulin (IVIG), and the majority of patients have rapid improvement of their weakness. The clinical features, differential diagnosi
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McQuay, Henry. Pain and its control. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.0007.

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♦ The origin, transmission, and reception of chronic pain is not easy to understand♦ The perception of pain is altered by mood and itself alters mood. There is, therefore, a close link between chronic pain and depression♦ Although pain is subjective, pain scales and diaries can be used to provide reproducible measures of pain♦ The choice of method of pain control is not simply a ladder. New stronger agents need to be added in, not substituted for weaker ones♦ Neuropathic pain will require unconventional analgesics in combination.
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Neff, Kristin, and Christopher Germer. Self-Compassion and Psychological Well-being. Edited by Emma M. Seppälä, Emiliana Simon-Thomas, Stephanie L. Brown, Monica C. Worline, C. Daryl Cameron, and James R. Doty. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780190464684.013.27.

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Self-compassion involves being touched by and open to one’s own suffering, not avoiding or disconnecting from it, generating the desire to alleviate one’s suffering and to heal oneself with kindness. Self-compassion also involves offering nonjudgmental understanding to one’s pain, inadequacies, and failures, so that one’s experience is seen as part of the larger human experience. This chapter will provide an overview of theory and research on self-compassion and its link to psychological well-being, which is the goal of clinical practice. It will discuss what self-compassion is and what it is
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Perales, José C., Andrés Catena, Antonio Cándido, and Antonio Maldonado. Rules of Causal Judgment. Edited by Michael R. Waldmann. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199399550.013.6.

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Our environment is rich in statistical information. Frequencies and proportions—or their visual depictions—are pervasive in the media, and frequently used to support or weaken causal statements, or to bias people’s beliefs in a given direction. The topic of this chapter is how people integrate naturally available frequencies and probabilities into judgments of the strength of the link between a candidate cause and an effect. We review studies investigating various rules that have been claimed to underlie intuitive causal judgments. Given that none of these rules has been established as a clear
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Glüer, Kathrin, and Åsa Wikforss. Reasons for Belief and Normativity. Edited by Daniel Star. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199657889.013.26.

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In this chapter, we critically examine the most important extant ways of understanding and motivating the idea that reasons for belief are normative. First, we examine the proposal that the distinction between explanatory and so-called normative reasons that is commonly drawn in moral philosophy can be rather straightforwardly applied to reasons for belief, and that reasons for belief are essentially normative precisely when they are normative reasons. In the course of this investigation, we explore the very nature of the reasons-for-belief relation, as well as the ontology of such reasons. Se
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Weiss, Meredith L. The Roots of Resilience. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501750045.001.0001.

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This book examines governance from the ground up in the world's two most enduring electoral authoritarian or “hybrid” regimes—Singapore and Malaysia—where politically liberal and authoritarian features are blended to evade substantive democracy. Although skewed elections, curbed civil liberties, and a dose of coercion help sustain these regimes, selectively structured state policies and patronage, partisan machines that effectively stand in for local governments, and diligently sustained clientelist relations between politicians and constituents are equally important. While key attributes of t
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Book chapters on the topic "Weakest link theory"

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Fok, Alex, and Hooi Pin Chew. "Mechanical Failure of Dental Restorations: The Weakest-Link Theory." In Mathematical Models for Dental Materials Research. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37849-3_7.

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Brons, M. D. (Anne). "Cross-National Variation in the Link Between Parental Socio-Economic Status and Union Formation and Dissolution Processes." In Social Background and the Demographic Life Course: Cross-National Comparisons. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67345-1_2.

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AbstractThe main objective of this chapter is to understand the link between parental socio-economic status (SES) and union formation and dissolution processes from a cross-national comparative perspective. According to the Second Demographic Transition (SDT) theory, it can be expected that the impact of parental background on these union dynamics differs across societal contexts. Integrated results from prior studies using meta-analytical tools indicate that in many European countries, young adults from advantaged backgrounds delay their first co-residential union and have a higher risk to dissolve their union compared to young adults from disadvantaged backgrounds. The strength of this link between parental SES and union dynamics varies across countries. There is suggestive evidence that the link between parental SES and union dynamics is weakest in North-Western European countries that are most advanced in the SDT. However, next to these SDT-related indicators that focus more on cultural change, institutional country-level indicators, like the extent of educational expansion, and economic country-level indicators, such as the level of economic uncertainty, might also play a role.
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Findley, Michael G., and Joseph K. Young. "THE WEAKEST LINK?" In Bridging the Theory-Practice Divide in International Relations. Georgetown University Press, 2020. http://dx.doi.org/10.2307/j.ctvz0hb31.18.

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"Nation State and Fighting the COVID-19 Pandemic Shock." In Theory of Shocks, COVID-19, and Normative Fundamentals for Policy Responses. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4309-2.ch010.

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Nation states have taken the brunt of the fight against the COVID-19 pandemic. The effectiveness of their actions was assessed by all the society in terms of growth rates of infected and deaths, of ability to quickly mobilize all medical services to work in extreme conditions, to increase the capacity of hospitals, of additional medical equipment, of laboratories' capacities and the availability of tests for COVID-19, not to mention the research the vaccine or effective means of treating the disease, etc. In addition, they introduced extreme regimes of lockdowns, having blocked the economy and social interconnections and given rise to an acute problem of the disadvantaged citizens' survival. The great question arose of who should have taken responsibility for missed opportunities. It is unreasonable to blame only the state because it has no alternative today. It is the weakest “link” in the structural “chain” of national societies, but by strengthening it, the entire chain becomes stronger to prevent future disasters.
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Ofori, Kwame Simpe, Hod Anyigba, George Oppong Appiagyei Ampong, Osaretin Kayode Omoregie, Makafui Nyamadi, and Eli Fianu. "Factors Influencing Information Security Policy Compliance Behavior." In Modern Theories and Practices for Cyber Ethics and Security Compliance. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-3149-5.ch010.

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One of the major concerns of organizations in today's networked world is to unravel how employees comply with information security policies (ISPs) since the internal employee has been identified as the weakest link in security policy breaches. A number of studies have examined ISP compliance from the perspective of deterrence; however, there have been mixed results. The study seeks to examine information security compliance from the perspective of the general deterrence theory (GDT) and information security climate (ISC). Data was collected from 329 employees drawn from the five top-performing banks in Ghana and analyzed with PLS-SEM. Results from the study show that security education training and awareness, top-management's commitment for information security, and peer non-compliance behavior affect the information security climate in an organization. Information security climate, punishment severity, and certainty of deterrent were also found to influence employees' intention to comply with ISP. The implications, limitations, and directions for future research are discussed.
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Ofori, Kwame Simpe, Hod Anyigba, George Oppong Appiagyei Ampong, Osaretin Kayode Omoregie, Makafui Nyamadi, and Eli Fianu. "Factors Influencing Information Security Policy Compliance Behavior." In Research Anthology on Business Aspects of Cybersecurity. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-3698-1.ch010.

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One of the major concerns of organizations in today's networked world is to unravel how employees comply with information security policies (ISPs) since the internal employee has been identified as the weakest link in security policy breaches. A number of studies have examined ISP compliance from the perspective of deterrence; however, there have been mixed results. The study seeks to examine information security compliance from the perspective of the general deterrence theory (GDT) and information security climate (ISC). Data was collected from 329 employees drawn from the five top-performing banks in Ghana and analyzed with PLS-SEM. Results from the study show that security education training and awareness, top-management's commitment for information security, and peer non-compliance behavior affect the information security climate in an organization. Information security climate, punishment severity, and certainty of deterrent were also found to influence employees' intention to comply with ISP. The implications, limitations, and directions for future research are discussed.
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Birgün, Semra, and Zeynep Altan. "A Managerial Perspective for the Software Development Process." In Agile Approaches for Successfully Managing and Executing Projects in the Fourth Industrial Revolution. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7865-9.ch013.

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The companies will become the center of business with the Industry 4.0 revolution implementing IT integration, cloud-based applications, data management, rapid decision-making operations, etc. These transformations can be realized with an effective project management, and project managers have a big role in this context. The quality of the software is very important for Industry 4.0, given that it can be as strong as the weakest link in a chain. Collaboration between producers and customers plays an increasingly important role in software processes where agile applications have recently been proposed. In this chapter, for the success of the project manager, Theory of Constraints is applied to remove the problems that may be encountered with the implementation of the agile methods during identifying the problem and determining its solution. The proposed solutions to uncover the reasons not reaching the targeted quality and removing the obstacles will be a guide for software project managers.
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Erman, Burak, and James E. Mark. "Networks Having Multimodal Chain-Length Distributions." In Structures and Properties of Rubberlike Networks. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195082371.003.0015.

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As was mentioned in chapter 10, end-linking reactions can be used to make networks of known structures, including those having unusual chain-length distributions. One of the uses of networks having a bimodal distribution is to clarify the dependence of ultimate properties on non-Gaussian effects arising from limited-chain extensibility, as was already pointed out. The following chapter provides more detail on this application, and others. In fact, the effect of network chain-length distribution, is one aspect of rubberlike elasticity that has not been studied very much until recently, because of two primary reasons. On the experimental side, the cross-linking techniques traditionally used to prepare the network structures required for rubberlike elasticity have been random, uncontrolled processes, as was mentioned in chapter 10. Examples are vulcanization (addition of sulfur), peroxide thermolysis (free-radical couplings), and high-energy radiation (free-radical and ionic reactions). All of these techniques are random in the sense that the number of cross-links thus introduced is not known directly, and two units close together in space are joined irrespective of their locations along the chain trajectories. The resulting network chain-length distribution is unimodal and probably very broad. On the theoretical side, it has turned out to be convenient, and even necessary, to assume a distribution of chain lengths that is not only unimodal, but monodisperse! There are a number of reasons for developing techniques to determine or, even better, control network chain-length distributions. One is to check the “weakest link” theory for elastomer rupture, which states that a typical elastomeric network consists of chains with a broad distribution of lengths, and that the shortest of these chains are the “culprits” in causing rupture. This is attributed to the very limited extensibility associated with their shortness that is thought to cause them to break at relatively small deformations and then act as rupture nuclei. Another reason is to determine whether control of chain-length distribution can be used to maximize the ultimate properties of an elastomer. As was described in chapter 10, a variety of model networks can be prepared using the new synthetic techniques that closely control the placements of crosslinks in a network structure.
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Hess, Earl J. "Conclusion." In Storming Vicksburg. University of North Carolina Press, 2020. http://dx.doi.org/10.5149/northcarolina/9781469660172.003.0022.

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The attacks of May 19 and 22 were not foredoomed to failure. Despite the presence of well-sited although not strong Confederate earthworks, there was reason to hope they could have succeeded. The Federals failed to search for weak spots and they failed to adopt the best tactical formations to use when advancing their infantry units. Grant left decisions on both points up to his subordinates. The terrain was rugged and confusing, but that could have been used better by the attackers. Some Federal officers, such as McClernand, made mistakes in deploying their available manpower. The strongest attacks took place against the strongest parts of the Rebel line and comparatively week efforts took place against the few genuinely weak points of that line. The Confederates at Railroad Redoubt were very worried that their part of the line would break and felt fortunate that the Federals did not take better advantage of their weakness. Grant’s Army of the Tennessee was a superb campaign force, able to march and live off the land better than any other field army of the war. But it was among the weakest in terms of mobilizing its full strength for coordinated, large-scale tactical offensives.
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Perrings, Charles. "Environmental Public Goods." In Conservation. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190613600.003.0008.

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Chapter 8 considers the conservation of environmental public goods. The nonexclusive and nonrival nature of public goods provide an incentive to free-ride on the efforts of others. The result is that such public goods are systematically undervalued and the underlying environmental assets—such as watersheds, habitats, and ecological communities—are underconserved. It shows how individuals determine their contribution to public goods (via a Nash-Cournot reaction curve), and compares the result to the contribution that would be made if resources were being allocated efficiently from the perspective of society. Types of environmental public goods considered include additive (climate change), best- and better-shot (defence), weakest- and weaker-link (infectious disease control), and local public goods (common pool resources). The chapter also shows how strategic behavior by the beneficiaries of public goods may lead to socially undesirable outcomes (such as prisoner’s dilemmas).
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Conference papers on the topic "Weakest link theory"

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Grossklags, Jens, and Benjamin Johnson. "Uncertainty in the weakest-link security game." In 2009 International Conference on Game Theory for Networks (GameNets). IEEE, 2009. http://dx.doi.org/10.1109/gamenets.2009.5137460.

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Fjeldstad, Arne, Anders Wormsen, and Finn Kirkemo. "Fatigue Assessment of Threaded Segment Specimens Based on the Weakest Link Theory." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11493.

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In this paper, the weakest link approach has been used to estimate the fatigue life of threaded segment specimens based on fatigue test data of smooth specimens of the same material. The segment specimens are cut outs from an ACME threaded component with a thread geometry typically used in subsea connectors. Fatigue life estimates of the threaded specimens were also made by means of the local stress approach which is often the prescribed method in standards and recommended practices, such as DNV-RP-C203. This method uses the von Mises stress range at the most severe location of the specimen wh
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Smart, John, and Siu L. Fok. "Determining Failure Laws for Ceramic Materials." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-085.

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For determining the failure probability of ceramic components in a varying stress field, there are many theories which are based on the Weibull “weakest-link” ideas. However, the difference between the predictions for many stress systems is small and because of the scatter in the failure loads for ceramic materials and the inevitable experimental errors, it has been difficult to decide which is most suitable. In this paper, a testing regime is described which spreads the predictions from the various theories to allow the most suitable theory for a given material to be chosen. This will give mo
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Sjödin, Björn. "A Non-Local Theory for the Assessment of Multiaxial High Cycle Fatigue Failure." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-509.

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Looking at HCF, the most critical component on the turbine is the blade. At the present moment there is a need for a HCF criterion suitable for evaluation of stresses calculated with the Finite Element Method. Today there are some, such criterions e.g. Sines. However the criterion does not include important aspects such as the influence of; ‘geometrical size’, ‘stressed volume’ or ‘stress gradient’. A better understanding of the HCF phenomena would give an increase in the design precision and an opportunity to increase the load on the blades. A proposal is made for a new theory for HCF assessm
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Duffy, Stephen F., and Jane M. Manderscheid. "Noninteractive Macroscopic Reliability Model for Ceramic Matrix Composites With Orthotropic Material Symmetry." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-129.

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A macroscopic noninteractive reliability model for ceramic matrix composites is presented. The model is multiaxial and applicable to composites that can be characterized as orthotropic. Tensorial invariant theory is used to create an integrity basis with invariants that correspond to physical mechanisms related to fracture. This integrity basis is then used to construct a failure function per unit volume (or area) of material. It is assumed that the overall strength of the composite is governed by weakest link theory. This leads to a Weibull type model similar in nature to the principle of ind
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Noronha, Silvester J. "A New Rationale for Scatter in Fracture Toughness Measurements." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61058.

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The observed scatter in fracture toughness is investigated based on a dislocation simulation model that has been proposed to predict the brittle ductile transition in ferritic steels. We carried out a series of Monte-Carlo simulations using uniform distribution of microcracks on the crack plane of macrocrack. Detailed statistical analysis of the simulation results showed that the fracture is always initiated at one of the largest microcracks, whose size correspond to the tail of the size distribution function, and the inherent scatter arises from the distribution in the size of the critical mi
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Chen, Xiaoming, and Thanasis D. Papathanasiou. "A Computational Study of Interfacial Stress Distribution in Unidirectional Composites and Its Use in Prediction of Brittle Failure." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55046.

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A computational investigation has been conducted to examine the effect of key microstructural and material parameters, namely the minimum inter-fiber spacing (δ) and the fiber/matrix stiffness ratio (Ef/Em), on the interfacial stress distributions in unidirectional composites subjected to transverse uniaxial tensile load. Representative Volume Elements (RVE’s) containing 144 fibers are constructed using a Monte-Carlo (MC) algorithm, imitating random composite structures. The boundary element method is then used to solve the multi-region elasticity problem on these microstructures. We pay parti
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Jordaan, Ian. "Some Issues in Ice Mechanics." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-42042.

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Ice mechanical behavior is time-dependent, as has been known for many decades. But in many references, the attempt is made to use time-independent plasticity theory. The relevant analytical approach that accounts for time is viscoelastic theory. The need for this approach is made quite essential by study of microstructural changes that occur in ice under high stresses. In no case does there appear to be a clear yield condition, with flow occurring after a certain threshold value. Furthermore, the microstructural changes occurring under stress result in a highly significant enhancement of the c
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9

Wang, John Jy-An, Ian G. Wright, Ken C. Liu, and Roy L. Xu. "An Innovative Technique for Bi-Material Interface Toughness Research." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60727.

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A material configuration of central importance in microelectronics, optoelectronics, and thermal barrier coating technology is a thin film of one material deposited onto a substrate of a different material. Fabrication of such a structure inevitably gives rise to stress in the film due to lattice mismatch, differing coefficient of thermal expansion, chemical reactions, or other physical effects. Therefore, in general, the weakest link in this composite system often resides at the interface between the thin film and substrate. In order to make multi-layered electronic devices and structural com
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10

Jivkov, Andrey P., David P. G. Lidbury, and Peter James. "Assessment of Local Approach Methods for Predicting End-of-Life Toughness of RPV Steels." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57546.

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Local approach methods are becoming increasingly popular as practical tools for cleavage fracture toughness prediction. Their application involves two distinct elements: calculation of ‘individual’ probabilities of failure, dictated by the local mechanical fields; and summation of these failure probabilities to predict the probability of component failure. In this work, we demonstrate that development of the local approach methods to date has been essentially focused on improving the criterion for predicting local failure as a function of the local mechanical fields. Yet, the existing methods
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