复合材料绝缘结构件力学性能试验设计及研究

Design and research of the mechanical performance test for composite insulation structural parts

针对复合材料绝缘结构件进行力学性能试验。介绍U形槽梁和工字梁2种结构件,设计一种新型的结构件单点弯曲、两点弯曲、两点撕裂及整体扭转试验方案,并与传统的试验方案分析比对,重点通过新型试验方案研究了结构件的弯曲强度、撕裂强度和扭转强度,同时对结构件的静态性能和模态性能进行分析计算,结果表明:试验设计结构合理,操作方便,满足试验要求,能准确反映出结构件的力学性能,计算结果与试验结果基本一致,可为同类结构件的研发和试验提供参考。

Targeting the mechanical property test of composite insulation structural parts,this paper presents 2 kinds of structural parts of U-shaped beam and H-shaped beam,for which new programs of single-point bending,two-point bending and overall twisting test is designed and compared with the conventional test program.The bending strength,tear strength and torsional strength of the structural parts are studied under the new test program,and in the meantime,the static property and modal property of the structural parts are analytically calculated.The results show that the new test program is rationally designed,easy to use and can satisfy the test requirements and accurately reflect the mechanical properties of the structural parts;the computation is generally consistent with the test results and can be used as references for the development and test of similar structural parts.