Abstract
Generalized load vectorsp and edge load vectorsF are denned in terms of the body force and surface on a shell. Necessary and sufficient conditions are derived forp andF, and therefore the body force and the surface force, to be conservative. It is shown for example thatp must satisfyp i=P ijk q j,1 q k,2+Q 1 ij q j,2−Q 2 ij q j,1+R i whereq is the generalized position vector andP ijk, Qi,j 1 and Qij 2 are skew tensors.
The case of hydrostatic pressure is examined in detail.
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References
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Simmonds, J. G., and Libai, A.,The nonlinear theory of elastic shells, Academic Press, New York, 1988.
Fisher, D.,Conservative configuration dependent loads on bounded surfaces, ZAMP,38, 883–892 (1987).
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This work was supported in part by NSF grant MSM 8618657.
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Fisher, D. Conservative loads on shells. Z. angew. Math. Phys. 40, 39–50 (1989). https://doi.org/10.1007/BF00945308
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DOI: https://doi.org/10.1007/BF00945308