高压物理学报

岩石Hopkinson层裂的流形元法模拟

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黄涛 ¹ , 陈鹏万 ¹ , 张国新 ² , 杨军 ¹

高压物理学报 | 2006,20(4): 353-358

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高压物理学报 | 2006 , 20 (4) : 353 -358

岩石Hopkinson层裂的流形元法模拟

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黄涛¹, 陈鹏万¹, 张国新², 杨军¹

作者信息

^1.北京理工大学爆炸科学与技术国家重点实验室，北京　100081

^2.中国水利水电科学院结构材料研究所，北京　100038

通讯作者:

陈鹏万，博士，副教授，主要从事爆炸力学研究. E-mail：pwchen@bit.edu.cn

作者简介:

黄涛（1978—），男，硕士研究生.

Numerical Simulation of Hopkinson Spalling of Rock Using Manifold Method

Tao HUANG¹, Peng-Wan CHEN¹, Guo-Xin ZHANG², Jun YANG¹

Affiliations

^1.National Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

^2.Institute of Structure Materials, Chinese Academy of Water Resources and Hydropower Research, Beijing 100038, China

出版时间: 2006-12-05

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摘要

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利用二阶流形元法，通过引入裂纹产生及扩展判据，对冲击载荷作用下岩石Hopkinson动态层裂过程进行了数值模拟，再现了拉伸波作用下Hopkinson层裂过程，计算得到的层裂片厚度和速度等与理论值符合较好，验证了流形元法在模拟冲击载荷作用下材料动态破坏过程方面的有效性和优越性。

关键词

Hopkinson层裂 / 冲击载荷 / 流形元 / 数值模拟

Abstract

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The second-order manifold method (MM) is used to simulate the dynamic Hopkinson spalling process of rock under shock loading through introducing a criterion of crack initiation and crack growth. The attenuation of stress waves and the spalling process caused by a reflected tensile stress wave are reproduced. The simulation results are compared with theoretical analysis. The thickness of the formed scab and its velocity obtained from the simulation are in good agreement with the theoretical values. MM has proven to be an effective method in simulating the dynamic failure process of materials under shock loading and exhibits some advantages to conventional numerical methods in the study of dynamic failure and related issues.

Key words

Hopkinson dynamic spalling / shock loading / manifold method / numerical simulation

引用本文

黄涛, 陈鹏万, 张国新, 杨军. 岩石Hopkinson层裂的流形元法模拟. 高压物理学报, 2006 , 20 (4) : 353 -358 .

Tao HUANG, Peng-Wan CHEN, Guo-Xin ZHANG, Jun YANG. Numerical Simulation of Hopkinson Spalling of Rock Using Manifold Method[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (4) : 353 -358 .

参考文献

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2006年第20卷第4期

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接收时间：2005-12-21
首发时间：2026-11-01
出版时间：2006-12-05

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收稿日期：2005-12-21
修回日期：2006-02-14

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作者信息

^1.北京理工大学爆炸科学与技术国家重点实验室，北京　100081

^2.中国水利水电科学院结构材料研究所，北京　100038

通讯作者:

陈鹏万，博士，副教授，主要从事爆炸力学研究. E-mail：pwchen@bit.edu.cn

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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