摘要
为了解决国内对适用于复合材料Goodman曲线实验研究较少的问题,基于ABAQUS有限元,利用Python语言编程和计算,按照德国劳氏船级社(GL)规范Goodman曲线对某新型动车组碳纤维增强树脂(CFRP)复合材料设备舱骨架进行疲劳强度校核。通过不同平均应力下疲劳强度实验,绘制Goodman曲线及考虑一定安全系数下的Goodman曲线,并与GL规范的Goodman曲线进行对比研究。结果表明,在EN12663-1∶2010[13]和文献[14]规定的疲劳工况下,GL规范的Goodman曲线对新型动车组CFRP复合材料设备舱骨架疲劳强度校核具有可行性,CFRP复合材料设备舱骨架可满足设计要求,但考虑安全系数n=1.5和n=2时评价有一定的风险性。
In order to solve the problem that there were few experimental studies on Goodman curve of composite materials in China,based on ABAQUS finite element method,Python language was used to program and calculate the fatigue strength of a new type of bullet train carbon fiber reinforced polymer(CFRP)composite equipment cabin skeleton according to Germanischer Lloyd(GL)specification Goodman curve.Through fatigue strength tests under different average stresses,the Goodman curve and the Goodman curve considering a certain safety factor were drawn and compared with the Goodman curve of GL specification.The results show that under the fatigue conditions stipulated in EN12663-1:2010[13]and reffence[14],the Goodman curve of GL specification is feasible for checking the fatigue strength of the CFRP composite equipment cabin skeleton of the new electric multiple units.The CFRP composite equipment cabin skeleton can meet the design requirements,but safety is considered.When the safety coefficient n=1.5and n=2,the evaluation has certain risk.
作者
秦楠
张向峰
冯学志
王永岩
QIN Nan;ZHANG Xiangfeng;FENG Xuezhi;WANG Yongyan(College of Mechanical and Electrical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2019年第11期2628-2636,共9页
Acta Materiae Compositae Sinica
基金
国家自然科学基金（51674149）
山东省自然科学基金（ZR2018PEE005）
博士科研启动金(210-010022667)
