| Summary |
The present paper focuses on the strength of membrane materials under biaxial tensions. The fracture experiments of membrane materials under biaxial tensions are difficult since the fracture starts at the corner of square tested pieces or near the mounting clamps. In the study, the fabric lattice model previously proposed by authors for the visco-elasto-plastic characteristics is extended
to model the characteristics of the material fracture.
From the analytical results, a two-D diagram for the fracture strength of membrane materials under biaxial tensions is obtained. As future researches、experiments for verification of the fracture strength curve are required to be compared with the fabric lattice model.
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