Based on the consistent mode imperfection method, the initialdefect model was determined by the least order mode of eigenvalue buckling, and the maximum displacement value.
初始缺陷的模型是根据一致缺陷模态法，按最小特征值屈曲模态分布，并控制其最大值的方法确定。
2
Almost all of these architecture structures are subjected to damage due to external loads, environmental effect, excessive service, natural disaster, initial design defect etc.
由于外部荷载、环境浸蚀、超期服役、自然灾害、设计初始缺陷等原因，这些建筑结构普遍存在损伤现象。
3
Influence of the initial temperature fields and mold hardness on the shrinkage defect of ductile iron casting by EPC process was mainly investigated in this paper.