Finite element calculations of the mighty north event.

Steedman, D. ; Swift, R.

Technical Information Center Oak Ridge Tennessee

关键词: High explosives;    Finite element method;    Validation;    Verification;    Chemical explosives;   

RP-ID  :  DE2001772609

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The MIGHTY NORTH event was a precision high explosive test performed in jointed Salem limestone for a modeling verification and validation program sponsored by DTRA. The test bed was subjected to a cylindrical shock front, making the response applicable for comparison to 2-D plane strain computations. While other investigators modeled the rock response with various elastic-plastic failure criteria, we demonstrate that simple elastic-perfectly brittle response with a tensile failure criterion replicates the experiment quite well. This paper provides comparisons between results of numerical simulations of the test event and the published test bed response.