Introduction to Finite Element Analysis in Engineering Course

Introduction to Finite Element Analysis in Engineering ( 程中的有限元分析绪论) Course Iecturer（授课人） Prof. Chaojiang Fu email: cjfu@163. com Tel: 13859094682 Textbook （教材） Introduction to Finite Elements in Engineering(3 rd Edition). Tirupathi R. Chandrupatla, Ashok D. Belegundu References （参考书） A first course in finite element method (3 rd Edition). Daryl L. Logan. Brooks/Cole, 2002. Finite element procedures. K. J. Bathe. Prentice Hall, 1996.

Aims（目的） u What is FEA To summarize concept of FEA （掌握有限元概念） u How does FEA work To illustrate analytical process of FEA （熟知有限元分析过程概念）

Overview（概要） 1 Definition of FEA（有限元分析定义） 2 Analytical Process of FEA （有限元分析过程） 3 Applications of FEA （有限元分析应用） 4 New Developments in FEA（有限元分析发展）

Why is FEA used?

What method is used to solve the problem? Engineering Analysis （ 程分析） Classical Method （经典方法） Exact Solution Approximate Solution Numerical Method （数值方法） Finite Element Finite Difference Boundary Element

1 -- What is FEA? ß ß The finite element method (FEM有限元法) is a numerical method（数值方法） to solve field problems in engineering and science Studying or analyzing a problem with FEM is often referred to as finite element analysis (FEA 有限元分析)

Basic concept（基本概念） dividing the body into a finite number of pieces (subdomains子区域) called elements（� 元）

2 -- How does FEA work --- Analytical Processes Step 1 Build up mathematical model（建立数学模型） Step 2 Select the Element Types & Discrete （选择单元划 分网格） Step 3 Construct the FEA model（构建有限元模型） Step 4 Construct the FEA theory model （建立有限元理论模型） Step 5 Solve the system equations （求解方程） Step 6 Results (postprocessing) （结果处理）