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A simple local a posteriori bending indicator for axisymmetric membrane and bending shell elements (1998)

Han, Chung-Souk ; Wriggers, Peter

Bradford : Emerald

Engineering computations 15 (1998), S. 977-988

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ISSN: 0264-4401

Source: Emerald Fulltext Archive Database 1994-2005

Topics: Technology

Notes: Several mechanical models can be employed for the analysis of thin walled structures. A bending indicator is developed for a nonlinear adaptive process and applied to thin walled axisymmetric shell problems incorporating membrane and bending elements. If the structural response of the model including bending is available the error made by the reduced membrane model is easy to evaluate. Thus an indication for the bending has to be found from the structural response of the reduced membrane model. This is done by an approximation of the rotations of the membrane part of the structure and by an evaluation of the bending energy leading to the bending indicator with these approximated rotations. Finally a criterion for the change of the models is proposed based on the bending indicator and some examples are presented.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1108/02644409810236948

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