Results 241 to 250 of about 7,360 (301)

On the Effect of Stress Triaxiality on Void Coalescence

International Journal of Fracture, 2007
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Zhang, Yang, Chen, Zengtao
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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
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Triaxial stresses caused by notches

British Journal of Applied Physics, 1954
The purpose of the work described was to give metallurgists a guide on means of suppressing plastic deformation in ductile materials, so as to provide a test for brittleness. Stress analyses were made on round bars with circumferential notches by the photoelastic frozen stress method and mechanical tests on steel test pieces provided additional ...
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Stress Triaxiality in Damage Models

2017
High strain rate of loading combined with multiaxial effects are important factors, which we need to consider in understanding the response of structures subjected to hard-body impact, blast, and detonation. Better design and load mitigation schemes against these factors can be developed based on the simulations that should be more reliable in ...
S. R. Hiremath, Deepak Alapur, D. Roy Mahapatra   +2 more
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