| 非线性侵彻动力过程的再生核质点法 |
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| 引用本文： | 赵光明,宋顺成.非线性侵彻动力过程的再生核质点法[J].爆炸与冲击,2010,30(4):355-360. |
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| 作者姓名： | 赵光明 宋顺成 |
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| 作者单位： | 1.安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001; |
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| 基金项目： | 国家自然科学基金项目，教育部新世纪优秀人才支持计划项目，安徽省优秀青年科技基金项目，高校省级自然科学研究项目 |
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| 摘 要： | 通过在再生核质点法中引入Johnson-Cook本构方程及损伤模型,并利用新型的滑移面算法及配
点法解决再生核质点法中的接触面和质点滑移问题,方便实现边界条件和计算过程中质点速度调整。通过侵
彻过程再生核质点法研究,实现了弹丸侵彻靶板过程的模拟分析,避免了有限元法中单元严重变形和破坏过
程的网格重构困难,提高了分析精度和计算速度,可方便模拟侵彻的大变形和高应变率现象。
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| 关 键 词： | 爆炸力学 侵彻 再生核质点法 高速冲击 非线性 |
An improved reproducing kernel particle method for nonlinear dynamical penetration process |
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| ZHAO Guang-ming,SONG Shun-cheng.An improved reproducing kernel particle method for nonlinear dynamical penetration process[J].Explosion and Shock Waves,2010,30(4):355-360. |
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| Authors: | ZHAO Guang-ming SONG Shun-cheng |
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| Institution: | 1.KeyLaboratoryonSafeandEffectiveCoalMiningSponsoredbyAnhuiProvinceand2.MinistryofEducation,AnhuiUniversityofScienceandTechnology, |
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| Abstract: | The Johnson-Cook constitutive relations and damage model were introduced into the reproducing kernel particle(RKP) method,and a new interface calculation method and a collocation method were proposed to solve the problems of interface and gliding particles,realize the boundary conditions and adjust the particle velocity in the computational process.The improved RKP method was applied to numerically analyze the oblique penetration process of a steel cylindrical pellet into a fixed steel plate.In the computat... |
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| Keywords: | mechanics of explosion penetration RKPM high speed impact nonlinearity |
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