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Locations of optimal stress points in higher-order elements

✍ Scribed by Oh, Hyung-Seok ;Batra, R. C.

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
259 KB
Volume
15
Category
Article
ISSN
1069-8299

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✦ Synopsis

The locations of optimal stress points in Lagrangian and serendipity elements are determined by using the symbolic mathematical tool MATHEMATICA # . It is found that, for the Lagrange family of elements of order more than two, the co-ordinates of optimal stress points slightly dier from those of the reduced Gauss integration points. Some of the serendipity family of elements have either none or only one optimal stress point at the element centre. Thus, when using higher-order elements in the p-or hp-version, it is more desirable to employ the Lagrange family of elements.

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