Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/191393

Title

A general purpose one point quadrature shell element based on resultant-stress

Author(s)

Yoon, Jeong Whan;  Cardoso, Rui P. R.;  Wang, Sheng Ping;  Choudhry, Sanjay

Abstract

Robustness, accuracy and good computational performance for large scale models are some of the salient requirements for general purpose finite element programs. A new one point quadrature shell element based on resultant-stress that meets all these requirements has been developed and implemented in MSC.Marc. The finite element strain-displacement matrices are described in convective coordinate system for the efficient implementation of physical stabilization procedure and Assumed Natural Strain (ANS) methods. For improved warping behavior, an element based fiber coordinate system is constructed at each node. In order to increase the computational efficiency of the shell element, the resultant-stress equations are formulated by reducing dimensionality into the shell's mid-surface. Rigid body projection is performed to prevent artificial strains induced by rigid body rotations. Several examples are presented to demonstrate the element's efficiency and robustness.

Publication type

Conference paper

Source

AIP Conference Proceedings: proceedings of 'Materials Processing and Design: Modeling, Simulation and Applications', the 8th International Conference on Numerical Methods in Industrial Forming Processes (NUMIFORM 2004), Ohio, United States, 13-17 June 2004 / Somnath Ghosh, June K. Lee and Jose C. Castro (eds.), Vol. 712, pp. 2252-2257

Publication year

2004

Keyword(s)

Fibre reinforced composites;  Finite element analysis;  Nonlinear network analysis;  Shells;  Strain control

Publisher

American Institute of Physics

ISSN

1551-7616 (series ISSN)

ISBN

9780735401891, 0735401896

Publisher URL

http://dx.doi.org/10.1063/1.1766870

Copyright

Copyright © 2004 American Institute of Physics.

Peer reviewed