When Rank-One Convexity Meets Polyconvexity: An Algebraic Approach to Elastic Binodal
When Rank-One Convexity Meets Polyconvexity: An Algebraic Approach to Elastic Binodal
复制标题
当一阶凸遇到多凸时:弹性二节线的代数方法
DOI:
10.1007/s00332-018-9485-7
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发表时间:
2019
影响因子:
3
通讯作者:
Truskinovsky, Lev
中科院分区:
文献类型:
--
作者:
Grabovsky, Yury;Truskinovsky, Lev
In the variational problems involving non-convex integral functionals, finding thebinodal, the boundary of validity of the quasiconvexity of the energy density, is of central importance. We develop a systematic methodology for identifying a part of the binodal corresponding to simple laminates by showing that in this case the supporting null-Lagrangians, establishing polyconvexity, can be constructed explicitly. We present a nontrivial example from nonlinear elasticity where this approach allows one to obtain the entire quasiconvex envelope.
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影响因子:
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