Lect03
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The document discusses the advantages and disadvantages of the finite element method (FEM) in civil engineering. It states that FEM can effectively handle problems with irregular shapes, boundary conditions, and loading conditions. It can also solve problems involving anisotropic and non-linear material and geometric properties that classical methods cannot. However, FEM provides approximate solutions rather than exact ones, requires skill in element selection and modeling, and demands significant computer resources.
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Lect03
- 1. Dr. A. S. Sayyad Professor & Head Department of Structural Engineering Sanjivani College of Engineering, Kopargaon 423603. (An Autonomous Institute, Affiliated to Savitribai Phule Pune University, Pune) Finite Element Method In Civil Engineering Advantages and Disadvantages of FEM
- 2. 1. Finite element method is effectively applicable to problems involving irregular shape, irregular boundary condition and irregular loading conditions. 2. For anisotropic material properties, solution by classical method is very difficult. FEM can handle such structures without any difficulty. 3. Material non-linearity and geometric non- linear problems cannot handle by classical methods. There is no difficulty in FEM to handle such problem. 4. FEM superior to irregular problems, for regular problems classical methods are best solution Advantages of FEM
- 3. 1. In classical method exact solution is obtained whereas in FEM approximate solution is obtained. 2. This technique depends upon skill designer in assuming element type, number of nodes and displacement fields etc. 3. Still adequate for several problems such as; cracking behaviour, bond failure, problems of composite materials. 4. It requires large amount of computer memory and computational time to obtained results. Disadvantages of FEM Question: What are the advantages and disadvantages of FEM? Explain