- 3D-shell Elements for Structures in Large Strains
- T. Sussman ; K.J. Bathe
- Book Title / Journal: Computers and Structures
- Year: 2013 , Volume: 122 , Series:
- Structural Analysis
- Keywords: Shell elements ; Large strains
- Description
- We present in this paper MITC shell elements for large strain solutions of shell structures. While we focus on the 4-node element, the same formulation is also applicable to the 3-node element. Since the elements are formulated using three-dimensiona l continuum theory with the full three-dimensional constitutive behavior, they are referred to as 3D-shell elements. Specific contributions in this paper are that the elements are formulated usi ng two control vector s at each node to describe the large deformations, MITC tying and volume preserving conditions acting directly on the material fiber vectors to avoid shear locking, and a pressure interpolation to circumvent volumetric locking. Also, we present solutions to some large strain shell problems that represent valuable benchmark tests for any large strain shell analysis
capability.
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