期刊
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
卷 85, 期 8, 页码 557-570出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/zamm.200510202
关键词
impotent eigenstrain; nilpotent eigenstrain; Hilbert space; shape control; stress control
The general theory of linearized elasticity with eigenstrain is considered with applications to continuous, discrete and discretized structures. It is shown that any eigenstrain can be uniquely decomposed into impotent and nilpotent constituents. The proven theorem on decomposition is based on the concepts of functional analysis, in particular, with respect to Hilbert functional spaces. This unique decomposition allows for the individual and independent control of stress, strain and displacement (e.g. shape control). The associated algorithm avoids the cumbersome solution of boundary-value problems with eigenstrain in connection with these control problems. Decomposition of eigenstrain opens the practically important opportunity to fully separate the control of strain and stress produced by force loading. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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