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Modeling of void growth in ductile solids: effects of stress triaxiality and initial porosity

Engineering Fracture Mechanics, 2004
The effects of stress triaxiality and initial porosity on void growth and coalescence are studied in this paper. The representative material volume (RMV) is modeled by two approaches: (1) a unit cell containing a discrete, spherical void at its center ...
Xiaosheng Gao
exaly   +2 more sources

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On the Effect of Stress Triaxiality on Void Coalescence

International Journal of Fracture, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Yang, Chen, Zengtao
openaire   +1 more source

Stress triaxiality effect on cleavage fracture stress

Theoretical and Applied Fracture Mechanics, 2020
Abstract In this work the effect of stress triaxiality on cleavage fracture stress was investigated by means of micromechanical modelling. A unit-cell model was used to determine macroscopic conditions for brittle fracture, in accordance with the slip-induced cleavage fracture model, because of included particle fracture and consequent crack ...
Testa, Gabriel, Bonora, Nicola, Ruggiero, Andrew, Iannitti, Gianluca, Gentile, Domenico   +4 more
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Stress-induced anisotropy model for triaxially stressed rocks

SEG Technical Program Expanded Abstracts 2012, 2012
Summary Elastic wave velocities in rocks vary with stress due to the presence of discontinuities and microcracks within the rock. In this paper, we analytically derive a model for seismic anisotropy caused by small triaxial stresses. We first consider a linearly isotropic elastic medium permeated by a distribution of cracks with random orientations ...
Olivia Collet, Boris Gurevich, Mahyar Madadi, Marina Pervukhina   +3 more
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Stress Concentration Around a Triaxial Ellipsoidal Cavity

Journal of Applied Mechanics, 1949
Abstract Previous investigations have been concerned with the stress concentrations around internal cavities in the shape of an ellipsoid of revolution. This paper contains an exact closed solution, in terms of Jacobian elliptic functions, for the stress distribution around a general triaxial ellipsoidal cavity in an infinite elastic ...
Sadowsky, M. A., Sternberg, E.
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Biaxial Analogs of Triaxial Stresses

Journal of Testing and Evaluation, 1979
Abstract In the case of composite materials such as concrete and natural rocks, fracture is resisted by internal friction, cohesion of the matrix, and adhesion at the interfaces. Although the behavior of an interface is clearly understood only when it is acted on by tensile forces, rock mechanics is primarily concerned with compressive ...
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Determination of triaxial stresses in bonded joints

International Journal of Adhesion and Adhesives, 1997
Abstract Adhesion in a bonded joint is subjected not only to a transverse peel stress and a shear stress, but also to two normal stresses, parallel and perpendicular to the joint, due to the constraint imparted by the adherends. In this paper, analytical solutions have been obtained for these two normal stresses. These solutions have been verified by
C.H. Wang, L.R.F. Rose
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Stress Distributions in Triaxial Compression Samples

Journal of the Geotechnical Engineering Division, 1974
A series of tests was performed whose objective was to measure stress distributions in triaxial compression samples with lubricated and nonlubricated end conditions. Results for both conditions are presented. Conclusions discuss compression testing techniques that represent near-ideal conditions for the reliable observation of stress-strain behavior in
William M. Kirkpatrick, Roger K. Seals, F. Barry Newman   +2 more
openaire   +1 more source