Topic
Hydrostatic stress
About: Hydrostatic stress is a research topic. Over the lifetime, 1568 publications have been published within this topic receiving 37773 citations.
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01 Jan 1996
TL;DR: In this article, the coupling of pressure and shear stress in isotropic elastic materials was studied, and it was shown that the dependence of stress on volumetric strain and pressure on shear strain is independent.
Abstract: : For isotropic elastic materials, we study the coupling of pressure and shear stress that results from the dependence of shear stress on volumetric strain and the dependence of pressure on shear strain. (MM)
9 citations
29 Sep 2003
TL;DR: In this article, the authors extend previous work on normal stress effects on point-defect equilibrium concentrations as well as pointdefect and dopant diffusion to also include shear.
Abstract: In recent years a lot of attention has been given to engineering the stress state in ULSI devices to enhance device performance. As a result the stress conditions inside state-of-the-art devices are significantly more complex than simple hydrostatic or biaxial stress situations. In this paper we extend previous work on normal stress effects on point-defect equilibrium concentrations as well as point-defect and dopant diffusion to also include shear. We find there is little effect of shear stress on point-defect equilibrium concentrations. However shear is important for vacancy (V), interstitial (I), and boron (B) migration since it introduces anisotropies and off-diagonal elements in the diffusivity tensor. Diffusivity can no longer be view as a diagonal tensor, but instead a general tensor needs to be used to describe I, V, and B diffusion correctly.
9 citations
TL;DR: In this article, a micromechanics based damage model is proposed to address failure mechanism of defected solids with randomly distributed penny-shaped cohesive micro-cracks (Barenblatt-Dugdale type).
9 citations
TL;DR: A theoretical model for hydrogen-induced cracking was developed to estimate the intergranular crack growth rate (CGR) in Alloy 600 in aqueous environments as mentioned in this paper, where crack growth is assumed to occur by anodic dissolution at the crack tip with the combined effect of nucleation and growth of voids along a grain boundary, and linkage with the main crack due to stressinduced fracture of the remaining ligaments.
9 citations
TL;DR: In this article, a closed-form genera1 asymptotic solution for singular centered fan sectors is given as a function of p, which is a pressure sensitivity parameter introduced in the yield condition.
9 citations