摘要
针对C/C复合材料热结构的开孔和连接问题进行了相关研究。测试了开孔板的强度性能并分析了点应力准则的适用性,结果表明直接采用孔边应力来评估开孔和连接强度将明显偏于保守。测试了C/C开孔的挤压强度特性,对不同的影响参数进行了分析。在此基础上完成了典型连接的开孔设计和强度试验。
Research on the opening hole and connecting problem of C/C composite material and thermal-structure was conducted.The strength characterristic of plate with opening hole was tested and the applicability of stress criteria focused on particular point was analyzed.Results indicate that it's obviously conservative to evaluate open hole and joint strength by hole-edge stress criteria.Moreover,the extruding strength characteristic of C/C structure with opening hole was tested,and different affecting parameters were analysed.Based on these,design and strength test of typical connection were completed.
出处
《宇航总体技术》
2017年第3期39-43,共5页
Astronautical Systems Engineering Technology
基金
国家自然科学基金(11572086)
国防重点实验室基金(61422110205162211002)
关键词
复合材料
开孔性能
连接
Composite material
Opening's character
Connection
