This paper proposes a novel approach for elastoplastic analysis of wood using hybrid elements combining planar fiber and solid elements. The key feature is the ability to evaluate yield criteria and plastic behavior separately for the longitudinal axis and the transverse axis. We present a calibration methodology to adjust component properties, ensuring the hybrid element achieves target elastic modulus and yield strengths. For validation, material parameters are identified using full-surface compression tests, with predictive capability assessed through partial compression simulations. Finally, biaxial analyses demonstrate differences between proposed model and conventional approaches using solid elements with Hill’s yield criterion.
TAKADA et al. (Thu,) studied this question.