Results 241 to 250 of about 329,998 (301)

Application of the strain energy density criterion to ductile fracture [PDF]

open access: yesTheoretical and Applied Fracture Mechanics, 1985
The strain energy density criterion due to Sih is used to predict fracture loads of two thin plates subjected to large elastic-plastic deformation. The prediction is achieved with a finite element analysis which is based on Hill's variational principle for incremental deformations capable of solving gross yielding problems involving arbitrary amounts ...
C.L. Chow, Jilin Xu
openaire   +2 more sources

Strain energy density failure criterion

International Journal of Solids and Structures, 2001
Starting from Clausius-Duhem inequality in which the free energy depends on elastic and plastic strains, temperature, damage tensor and plastic internal variables, the author derives an intrinsic general dissipative energy density leading to a failure criterion described by the critical value of elastic strain energy density.
exaly   +3 more sources

On the definition of elastic strain energy density in fatigue modelling

International Journal of Fatigue, 2019
Abstract In energy-based fatigue models, in addition to plastic strain energy density calculated from area inside hysteresis loop, positive elastic energy is usually considered. In current elastic energy definitions, mean stress effects in different loading conditions are calculated using different formulations, causing physical inconsistency.
Ali A Roostaei   +2 more
exaly   +2 more sources

Material Anisotropy and Work Strain Characterized by Stationary Values of Strain Energy Density Function

open access: yes, 1995
Stationary values of the strain energy density function are used to determine the relative position of the material symmetry axes and those of principal stress and strain. The minima and maxima would determine the directions of orthotropy for which the body would exhibit the stiffest or softest response.
SACCHI LANDRIANI G   +2 more
openaire   +4 more sources

An extended strain energy density failure criterion by differentiating volumetric and distortional deformation

open access: yesInternational Journal of Solids and Structures, 2012
We extend Sih's strain energy density criterion (Si h, 1974) for crack kinks and material failure by weighting differently the volumetric and distortional parts in the extended strain energy density factor. The work is inspired by the factor that failure
Yujie Wei
exaly   +3 more sources

Strain-energy density function for rubberlike materials

Journal of the Mechanics and Physics of Solids, 1979
Abstract T he strain-energy density function surface for the rubber tested by L. R.G. T reloak (1944a) is determined from bis stress-strain data. The data were given for the three pure homogeneous strain paths of simple elongation, pure shear, and equi-biaxial extension of a thin sheet.
Haines, D. W., Wilson, W. D.
openaire   +2 more sources

Strain energy density – a molecular appraisal

Journal of the Chinese Institute of Engineers, 2004
Abstract The interaction potential between two clusters simulating the crack tip on the lattice level is derived in this work. Employing molecules as the building blocks and the Lennard‐Jones potential as the Green's function, the close‐form solution shows that the 1/r‐type of singularity is an intrinsic behavior of the energy field when mutual ...
D. Y. Tzou, James C. Dowell
openaire   +1 more source

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