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arXiv · 2505.08984

A Comprehensive Approach via Global Relaxation to the Variational Modelling of Hierarchical Structured Deformations

Ana Cristina Barroso·José Matias·Marco Morandotti·David R. Owen·Elvira Zappale
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Abstract

The response of many materials to applied forces and boundary constraints depends upon internal geometric changes at multiple submacroscopic levels. Hierarchical structured deformations provide a mathematical setting for the description of such changes and for the variational determination of the corresponding energetic response. The research in this article provides substantial refinements and broadenings of the mathematical setting both for the underlying geometrical structure and for the variational analysis of energetic response. The mathematical tools employed in this research include the global method for relaxation and establish the equivalence of a relaxed energy obtained via relaxation under simultaneous geometrical changes at all levels and a relaxed energy obtained via iterated relaxations proceeding from the deepest submacroscopic level successively to the macroscopic level.

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Ana Cristina Barroso, José Matias, Marco Morandotti, David R. Owen, Elvira Zappale. 2025-05-13. A Comprehensive Approach via Global Relaxation to the Variational Modelling of Hierarchical Structured Deformations. https://arxiv.org/abs/2505.08984

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