目的 研究在高温 40 ℃条件下塑料包装桶和钢塑复合桶的堆码强度。方法 利用 SolidWorksSimulation CAD/CAE软件建立塑料包装桶和钢塑复合桶运输性能试验模型和模拟运输试验条件， 模拟分析其在高温堆码条件下的力学行为， 得到堆码载荷作用下应力场和变形场。结果 塑料包装桶最大应力达到屈服极限的21.13%， 最大位移为4.12 mm； 钢塑复合桶最大应力达到屈服极限的11.09%， 最大位移为0.0374 mm。容量200 L的塑料包装桶及钢塑复合包装桶的堆码高度能够达到3 m， 此时包装容器的最大应力并未达到屈服强度， 包装容器仅发生弹性变形。结论 通过高温堆码强度模拟分析，能够评价塑料包装桶和钢塑复合桶的强度。

This study aimed to investigate the stacking strength of plastic packaging bucket and steel- plastic bucket during high temperature of 40 ℃ . Transportation performance test models and the simulation test conditions of plastic packaging bucket and steel- plastic bucket were established using Solidworks Simulation CAD/CAE software. The stress fields and displacement fields were calculated under high temperature stacking load. The stress state and the deformation distribution were obtained. The maximum stress of plastic packaging bucket reached 21.13% of the yield limit, and the maximal displacement was 4.12 mm; the maximum stress of steel-plastic composite bucket reached 11.09% of the yield limit, and the maximal displacement of 0.0374 mm. Our simulation results also indicated that the stacking height were able to reach 3 m of plastic packaging bucket and steel-plastic bucket with capacity of 200 L and the maximum of Mises stress did not reach the material′ s yield strength when elastic deformation was occurred. Taken together, leak location of packaging containers can be predicted and structural optimization of packaging containers can be achieved by simulation analysis of high temperature stacking strength.