Material modeling of failure in wooden structures subjected to dynamic loading

Several experimental and numerical investigations are already available for the mechanical characterization of wood under static load. These investigestions are both for the elastic and inelastic cases. The dynamic behavior of wooden material, however, is not studied thoroughly. In the most cases, dynamic analyses are performed simply by adding inertial and damping terms. Furthermore, the strain rate dependency is not considered in the analysis.  The goal of this project is to develop a rate dependent description of wood by means of elastic-plastic models and the identification of material parameters from experimental data

Research topics

• Development of finite deformation anisotropic multisurface plasticity which takes into account hardening and softening for dynamic analysis
• Development of finite deformation anisotropic multisurface viscoplasticity with hardening and softening for dynamic analysis
• Development of discrete fracture model for anisotropic material during dynamic loading
• Analysis of wave propagation in elastic and plastic medium (anisotropic material)
• Experiment of highrate strain to identify the dynamic material parameter