A mesomechanical modelling of porous aluminum under dynamic loading: Comparison experiment-calculation

被引：2

作者：

Collombet, F ^{[1
]}

Bonnan, S ^{[1
]}

Hereil, PL ^{[1
]}

机构：

[1] CTR ETUD GRAMAT,F-46500 GRAMAT,FRANCE

来源：

JOURNAL DE PHYSIQUE IV | 1997年 / 7卷 / C3期

关键词：

D O I：

10.1051/jp4:19973110

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The purpose of this work is to demonstrate the validity of a model based on a method of homogenization (Mori and Tanaka's method) to study the shock-wave behavior of 8.2% porous aluminum. At low stresses (below 2 GPa), the macroscopic response of this material is influenced by the coupling between matrix plasticity and void collapse under stress triaxiality. The model is validated through the comparison of numerical simulations to an interferometric measurement performed during a plate impact test. For this approach, the satisfactory restoration of the experimental profile by the proposed model depends on the physical analysis of local events.

引用

页码：643 / 648

页数：6

共 16 条

[1]

Berveiller M., 1979, J MECH PHYS SOLIDS, V26, P325

[2] STATIC AND DYNAMIC PORE-COLLAPSE RELATIONS FOR DUCTILE POROUS MATERIALS [J].