Cho Kwang Soo
Department of Polymer Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
Entropy (Basel). 2025 Jan 10;27(1):55. doi: 10.3390/e27010055.
This study is the application of the Onsager variational principle to viscoelasticity and viscoplasticity with the minimization of the assumptions which are popularly used in conventional approaches. The conventional approaches assume Kröner-Lee decomposition, incompressible plastic deformation, flowing rule, stress equation and so on. These assumptions have been accumulated by many researchers for a long time and have shown many successful cases. The large number of successful assumptions leads to the conjecture that the mechanics can be described with a smaller number of assumptions. This paper shows that this conjecture is correct by using the Onsager variational principle.
本研究将昂萨格变分原理应用于粘弹性和粘塑性，尽量减少传统方法中普遍使用的假设。传统方法假设了克勒纳-李分解、不可压缩塑性变形、流动法则、应力方程等。这些假设是许多研究人员长期积累的成果，并且已经有许多成功的案例。大量成功的假设引发了这样一种推测，即可以用更少的假设来描述力学。本文通过使用昂萨格变分原理证明了这一推测是正确的。
