A plane stress softening plasticity model for orthotropic materials
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 consi...
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| Other Authors: | , |
| Format: | article |
| Language: | eng |
| Published: |
1997
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| Subjects: | |
| Online Access: | http://hdl.handle.net/1822/52682 |
| Country: | Portugal |
| Oai: | oai:repositorium.sdum.uminho.pt:1822/52682 |
| Summary: | 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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