A simple flat triangular shell element revisited
作者:
Mervyn D. Olson,
Terrence W. Bearden,
期刊:
International Journal for Numerical Methods in Engineering
(WILEY Available online 1979)
卷期:
Volume 14,
issue 1
页码: 51-68
ISSN:0029-5981
年代: 1979
DOI:10.1002/nme.1620140105
出版商: John Wiley&Sons, Ltd
数据来源: WILEY
摘要:
AbstractThe 18 degree‐of‐freedom flat triangular shell element is reformulated by combining the well‐known bending triangle with a plane stress triangle incorporating in‐plane rotations at each vertex. Both elements are displacement formulated. The plane stress element's displacement interpolation isincompleteand hence convergence to exact solutions is precluded. Comprehensive test results are presented for several types of problem including plane stress, thin shells and folded plates. The results indicate that the element does produce rapidly convergent answers. However these answers are not the correct ones, although they may be acceptable engineering approximations in many applications. Further, the element seems to provide reasonably good results even for relatively coarse elemen
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