The JHB and JH-2 models are available as built-in user materials for Abaqus (i.e., via VUMAT subroutines that are built-in). 

These built-in materials are invoked by using material names starting with ABQ_JHB and ABQ_JH2, respectively.

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例子：

碳化硅靶材

初始速度4000m/s

通用接觸

動態顯示分析

343,980 elements for the target and

2000 elements for the projectile

總時間7us

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Johnson-Holmquist model描述

 uses the JH-2 model. The JH-2 model assumes that the damage variable increases progressively with plastic deformation.  The material parameters used for the JH-2 model are listed in Table 2.1.18–4. The JH-2 model similarly consists of three components.

 

結果如下：

 

impactsiliconcarbide_jh2.txt

把附件的txt后綴直接改為inp文件即可運行

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