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A Computational Multiscale Investigation of Failure in Viscoelastic Solids

  • Roberto F. SoaresEmail author
  • David H. Allen
Chapter
Part of the Solid Mechanics and Its Applications book series (SMIA, volume 168)

Abstract

Accurate predictions of the mechanical response of heterogeneous viscoelastic solids is a complex task. An even more challenging task is the prediction of failure in structural components made from this class of materials. One of the primary recognized failure modes for heterogeneous solids is the development of new internal boundaries in the form of cracks. In this form of failure multiple cracks of widely varying length scales can interact in such a way as to produce sufficient energy dissipation to cause total destruction of the component. On the other hand, many structural parts can undergo significant damage, and can continue to perform their intended tasks for many years. Furthermore, components that possess multiple length scales happen often in nature, such as composite materials used in aircraft industry, geologic media, tank armor and asphaltic roadways. Finally, experimentally based design procedures are extremely costly, suggesting the need for improved models. Therefore, models that can accurately predict the evolution of damage and the ultimate failure event, though complex, would appear to be useful for design purposes.

Keywords

Local Scale Representative Volume Element Cohesive Zone Relaxation Modulus Critical Energy Release Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Department of Engineering MechanicsUniversity of Nebraska-LincolnLincolnUSA

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