关键词: 元件利用率, 分类组合临界元件, 破坏模式的删除和合并原则

Abstract: This paper presents a full quantity loading method for reliability analysis of composite structural systems in consideration of degradation of the structural Stiffness. According to the value of utilization ratios of members, critical members can be found out. The way of composing the critical members in groups is used to enumerate and identify significant failure modes. Some kinds of principles of deletion and mergence of failure modes are adopted. Some illustrative examples show that the method is vety efficient, especially for large scale composite structural system.

Key words: utilization ratios of members, composing the critiza! members in groans, nrinci-ples of de letion and mergence of failure modes