On Generalizations of the Minimal Complementary Energy Variational Principle in Linear Elastostatics
Classical Physics
2024-09-12 v1
Abstract
It is shown that when the well-known minimal complementary energy variational principle in linear elastostatics is written in a different form with the strain tensor as an independent variable and the constitutive relation as one of the constraints, the removal of the constraints by Lagrange multipliers leads to a three-field variational principle with the displacement vector, stress field and strain field as independent variables. This three-field variational principle is without constrains and its variational functional is different from those of the existing three-field variational principles. The generalization is not unique. The procedure is mathematical and may be used in other branches of physics.
Cite
@article{arxiv.2409.06875,
title = {On Generalizations of the Minimal Complementary Energy Variational Principle in Linear Elastostatics},
author = {Jiashi Yang},
journal= {arXiv preprint arXiv:2409.06875},
year = {2024}
}