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Orthotropic elastic response of granular materials

✍ Scribed by Ta-Peng Chang; Born-Horn Chen

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
785 KB
Volume
64
Category
Article
ISSN
0045-7949

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✦ Synopsis

This study presents the results of the global orthotropic elastic behaviour of granular materials due to the fabric variation in the two-dimensional case. It shows that the characteristics of isotropic materials may be simulated by a granular assembly with fabric diagram represented by a circle. On the other hand, ,the mechanical behaviour of orthotropic elastic materials can be imitated through an elliptical fabric diagraim. The larger the ratio between long and short axes of fabric ellipse, the bigger the difference of stiffness ratio. Explicit equations relating the ratio of short to long axis of the ellipse, Young's modulus and Poisson's ratio are given and verified by numerical examples. 0 1997 Civil-Comp Ltd and Elsevier Science Ltd.

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