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The mechanical properties of two rubber materials, RB-55 rubber and FM-32 foam rubber, were tested under quasistatic and dynamic compressive loadings with a universal testing machine and a nonmetallic split Hopkinson pressure bar (SHPB), respectively. The results show that the hyperelasticity dominates the mechanical characteristics of the both materials. And the strain rate dependencies can be observed...
The elastoplastic constitutive model of the constructional steel is put forward, which is based on the Unified Strength Theory (UST) and can be used not only for steel with equal tensile-compression strength, but also for ones with different high tensile-compression strength. The material nonlinearity and geometrical nonlinearity FEM of updated Lagrangian (U.L.) mode based 8-node shell element is...
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