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Numerical analysis of the shape effect on the tensile strength evaluation of axisymmetric specimens

✍ Scribed by L. C. Zhang

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
432 KB
Volume
15
Category
Article
ISSN
0363-9061

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✦ Synopsis

This paper analyses the shape effect on the tensile strength of axisymmetric rock specimens by an improved adaptive dynamic relaxation method. It is shown that the present approach is convenient and &cient. Numerical results for spheroidal specimens with different shapes reveal the variation of stress distributions along the loading axes and suggest that loading along the shorter principal axis is preferable in strength tests. Furthermore, an empirical formula based on the failure criterion of maximum tensile stress is proposed to evaluate the tensile strength of specimen materials.

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