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A quadrilateral thin shell element based on area co-ordinate for explicit dynamic analysis
Zhu, YQ
Lin, ZQ
Zhang, WG
Communications in Numerical Methods in Engineering, 19(3), pp 169-178, 2003-3
The mechanism of explicit dynamic finite element method for shell deformation analysis and the key influential factors on computation precision and efficiency are briefly described. A new area co-ordinate-based quadrilateral thin shell element is put forward and combined with the co-rotational theory and velocity strain formulation in the shell stress and strain analysis. A new local co-ordinate system is constructed in which normal vector is much closer to the material axis. The more accurate integration can be obtained and the hourglass control is avoided. Therefore simulation precision and efficiency of thin shells are improved.
area co-ordinate; explicit finite element analysis; co-rotational formulation
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