期刊
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
卷 199, 期 5-8, 页码 276-289出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2009.05.011
关键词
Isogeometric analysis; NURBS; Shells; User-defined elements
资金
- NSF [0700204]
- ONR [N00014-03-0236]
A Reissner-Mindlin shell formulation based on a degenerated solid is implemented for NURBS-based isogeometric analysis. The performance of the approach is examined on a set of linear elastic and nonlinear elasto-plastic benchmark examples. The analyses were performed with LS-DYNA, an industrial, general-purpose finite element code, for which a user-defined shell element capability was implemented. This new feature, to be reported on in subsequent work, allows for the use of NURBS and other non-standard discretizations in a sophisticated nonlinear analysis framework. (C) 2009 Elsevier B.V. All rights reserved.
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