A FRAMEWORK FOR RUBBER MATERIALS IN DIANA

摘要

In this paper, a framework for the elastic matrix of rubber-like materials in DIANA is proposed. When the first and second derivatives of the strain energy function are known, other information can be generated automatically in DIANA through this framework. For example, two kinds of Gao's constitutive law for a rubber-like material are inserted into DIANA in this way. When a new strain energy function would be proposed in the future, the new constitutive law could be more conveniently inserted into DIANA than before. The new framework has been checked by two examples. The improved subroutine in DIANA provides a new way to study mechanics of rubber-like materials.