SiCp/Al复合材料薄壁回转体变形的仿真分析

运用有限元仿真软件ABAQUS对体积分数为56%的SiCp/Al复合材料薄壁回转体在静载荷作用下的应力、变形及应变进行了仿真研究,研究了载荷施加位置、外径和壁厚对SiCp/Al复合材料圆筒薄壁件的应力、变形及应变的影响规律。结果表明:在其他条件一致的情况下,回转体的外径越小、壁厚越大、受力点距离施加全约束的一端越近,回转体受到外载荷引起的最大应力、最大变形及最大应变越小。薄壁回转体工件的壁厚对工件最大应力、最大变形及最大应变的影响最为显著。当壁厚增加到1mm以上时,最大应力、最大变形及最大应变的变化不明显。

Stress Distortion Analysis of Thin-walled Revolving Body of SiCp/Al Composites

Using the finite element analysis software ABAQUS,the stress、strain and deformation of a thin-walled revolving body (cylinder) made from 56％SiCp/A1 composite under static load were simulated.The study took into the consideration the load position,outer diameter and wall thickness of the thin-walled cylinder.Conclusions can be obtained through the simulation results.In the case of other conditions consistent,smaller outer diameter/ thicker wall/load acting point closer to the fixed end,make the maximum stress、maximum deformation and maximum strain of the thin-walled revolving body all smaller.The wall thickness is the most important factor to influences the variation of maximum stress、maximum deformation and maximum strain.When the wall thickness increases to 1mm and above,the variation of stress、deformation and strain will not be obvious.