摘要
对770MPa级高强钢管件的初始几何缺陷、残余应力和本构关系进行了测试,完成了66根770MPa级不同规格高强钢管件的轴压极限承载力试验,结合仿真分析,验证了添加初始缺陷的一致模态法分析高强钢管件极限承载力的准确性.
Tests are conducted to investigate the initial geometry imperfections, residual stress and stress- strain relationship of 770 MPa high strength steel tube,and the bearing capacity of sixty-six（66）770 MPa tubes with different specifications are tested under axial compression. With integration of simulation analysis, the precision of the consistent mode imperfection method to calculate the bearing capacity is verified.
出处
《中国工程机械学报》
2012年第4期384-390,共7页
Chinese Journal of Construction Machinery
基金
湖南省自然科学基金资助项目(10JJ4028)
关键词
高强钢
稳定性
轴心压杆
初始缺陷
屈曲
high-strength steel
stability
axial compression bar
initial imperfection
buckling
