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A plane stress softening plasticity model for orthotropic materials

✍ Scribed by Paulo B. Lourénço; René De Borst; Jan G. Rots

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
326 KB
Volume
40
Category
Article
ISSN
0029-5981

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✦ Synopsis

A plane stress model has been developed for quasi-brittle orthotropic materials. The theory of plasticity, which is adopted to describe the inelastic behaviour, utilizes modern algorithmic concepts, including an implicit Euler backward return mapping scheme, a local Newton-Raphson method and a consistent tangential stiffness matrix. The model is capable of predicting independent responses along the material axes. It features a tensile fracture energy and a compressive fracture energy, which are different for each material axis. A comparison between calculated and experimental results in masonry shear walls shows that a successful implementation has been achieved.

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