Multi material mix is a promising approach to reduce weight and the carbon footprint in automotive engineering at competitive costs. As a result, automotive industry is getting more venturous, exploring and applying other materials than metals and plastics – e.g. fibre reinforced plastics (FRPs). In this context, engineered wood products (EWPs) and wood composites should be considered: Wood composites provide high stiffness, strength, excellent damping, high resistance against fatigue and a very low density at low material costs. It is hypothesized that modern wood composites are competitive to metals and artificial fibre-reinforced materials when designed and applied properly. The application of wood and wood composites in automotive engineering calls for precise and reliable material data, required for initial material selection and later in numerical simulation. In this study, a material model normally used for modelling FRPs was adopted. A material database was generated for three hardwood species, to establish the required material parameters and validate material model. Results prove that wooden components can be simulated in crash situations and the selected material model is applicable, even in full vehicle simulation.

多材料混合是一种以有竞争力的成本降低汽车工程中的重量和碳足迹的有前途的方法。结果，汽车工业变得越来越艰辛，正在探索和应用除金属和塑料以外的其他材料，例如纤维增强塑料（FRP）。在这种情况下，应考虑使用工程木产品（EWP）和木材复合材料：木材复合材料具有高刚度，强度，出色的阻尼性，高抗疲劳性以及低材料成本下的极低密度。可以假设，如果设计和应用适当，现代木材复合材料在金属和人造纤维增强材料方面具有竞争力。木材和木材复合材料在汽车工程中的应用要求精确而可靠的材料数据，最初的材料选择和后来的数值模拟中都是必需的。在这项研究中，采用了通常用于FRP建模的材料模型。生成了三个硬木树种的材料数据库，以建立所需的材料参数并验证材料模型。结果证明，即使在完整的车辆模拟中，木质零件也可以在碰撞情况下进行模拟，并且所选的材料模型也适用。