本文應用改良式顯性有限元素法Convected Material Frame (C.M.F.) Approach，來進行非線彈性材料之結構大變形分析，文中針對非線彈性結構於材料組成律中分別考慮塑性應變、溫度應變及潛變，建立一套非彈性變形的分析方法，進而探討非彈性結構在常溫及高溫環境下的大變形行為。

　　C.M.F. Approach 將結構物化成有限個元素的集合，並在分析中取前後分析時間點的變形差，來求解元素上的應力應變關係，再利用虛功原理並配合顯性積分法，以求解結構物在各歷時的變位、速度和加速度；而在結構材料性質方面，由於非線彈性的應力應變關係不再是單純的線性關係，因此須考慮元素的實際應力應變的情況來求解。

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