The MITC3+ shell element and its performance

•An effective new 3-node shell element is derived from the MITC3 shell element.•The MITC3 shell element is enriched by a cubic bubble function for the rotations.•A new assumed transverse shear strain field is developed for the new element.•The numerical results demonstrate the excellent predictive c...

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Bibliographic Details
Published inComputers & structures Vol. 138; pp. 12 - 23
Main Authors Lee, Youngyu, Lee, Phill-Seung, Bathe, Klaus-Jürgen
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.07.2014
Subjects
3-Node element
Basic converters
Convergence
Direct power generation
Finite element method
Isotropy
Mathematical analysis
Mathematical models
MITC method
Shell finite elements
Shell structures
Shells
3-Node element
MITC method
Shell structures
Shell finite elements
Convergence
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Summary:•An effective new 3-node shell element is derived from the MITC3 shell element.•The MITC3 shell element is enriched by a cubic bubble function for the rotations.•A new assumed transverse shear strain field is developed for the new element.•The numerical results demonstrate the excellent predictive capability. In this paper, we present an effective new 3-node triangular shell finite element, called the MITC3+ element. The new shell element is based on the concepts earlier published for the MITC3 shell element (Lee and Bathe, 2004) [1] but is enriched by a cubic bubble function for the rotations. A new assumed transverse shear strain field is developed for the element. The shell element passes the three basic tests (the isotropy, patch and zero energy mode tests) and shows excellent convergence behavior in basic and encompassing convergence tests.
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ISSN:0045-7949
1879-2243
DOI:10.1016/j.compstruc.2014.02.005