异形截面木塑复合材料托盘的数值模拟与实验对比分析

利用有限元数值仿真技术，研究了具有异形截面的木塑复合材料托盘的承载能力。采用自定义截面梁单元建立木塑复合材料的异型截面梁模型；基于该异形截面梁模型，建立了托盘有限元模型，并进行承载能力计算；最后将数值计算结果与实验结果进行对比分析。研究结果表明：数值分析结果与实验结果有比较好的一致性；数值分析方法的计算精度满足实际工程需要。该方法用于具有复杂截面形状的木塑复合材料及制品的研究与开发，能节约实验及研发成本、缩短研发周期。

Numerical Simulation and Experimental Analysis of Wood Plastic Composite Pallet with Irregular Section

Based on finite element numerical simulation technology, a method of calculating the load-carrying capacity of wood-plastic composite pallets with irregular cross-section was put forward. Firstly, an irregular section beam model of wood-plastic composites was established by using the method of self-defined cross-section beam element. Secondly, based on the irregular section beam model, a pallet structure model was established and the bearing capacity was calculated. Finally, the numerical calculation results were verified with the experimental results. The results showed that the numerical analysis results were in good agreement with the experimental results. The accuracy of numerical analysis method could meet the engineering requirements. Being applied to the research and development of wood-plastic composites and products with complex cross-section shape, the method could be cost saving and shorten the research and development cycle.