The wide application of advanced high strength steels with specific in the automotive industry can significantly reduce energy consumption and contribute to carbon neutrality. Accurate prediction ductile fracture behavior under complex stress states is great significance for its automobile industry. In this study, QP980 states, covering shear, uniaxial tension, plane strain investigated by cond...

• A constitutive material model is developed to nonlinear behaviour of timber. Orthotropic stress–strain relationship used in the linear elastic phase. Under compression a based on Hoffman yield criterion and plastic potential used. Isotropic strain hardening during deformation incorporated into criterion. Tensile damages all three grain directions are established using damage factors fracture ...

fracture of mixed mode i/ii in beech wood and its wood polymers has been investigated experimentally in this study. hence, two crack systems of tl and rl were selected in which the crack planes extend along the wood fibers. this investigation has demonstrated that onset of mixed mode cracking can be predicted with a very simple fracture criterion in these crack systems. results indicated that f...