摘要
介绍了爆炸与冲击动力学数值模拟领域近几年的研究重点及主要进展.包括材料本构关系、损伤破坏、冲击相变、射流和微喷等,其中材料本构关系的发展比较系统,有几个典型的模型可以参考,不仅应用广泛,而且有实验数据进行检验和对比.损伤模型只有唯象模型,虽然有不同的物理机制,但缺少直接的实验依据.射流的工程应用比较广泛,理论研究比较缺乏.微喷研究基本停留在定性阶段.随着实验技术及测量手段的发展,相关领域取得了一些令人欣慰的进展.
The present paper give a review on the development and current achievements in explosion mechanics and impact dynamics,including constitutive relation of material,damage evolution,and fracture,shockinduce phase transition,jet and material ejection etc.,among which the development of constitutive relation of material is relatively systematic.There are several typical models that may be of value for reference,i.e. they can not only be widely applied,but also be used to check up and make contrast with experimental data. As for damage,only phenomenological models with different physics mechanisms involved have been proposed up to now,and they are in urgent need of direct verification of experiment data.The technique of jets is widely applied to engineering practice,however,there are scarcely profound theoretical studies.Investigation on material ejection also remains in a qualitative stage.With the development of experimental techniques and instrumentation for measurement,some encouraging developments have been achieved in interrelated fields due to untiring work of scientists and engineers.
出处
《力学进展》
EI
CSCD
北大核心
2010年第4期400-423,共24页
Advances in Mechanics
基金
计算物理实验室基金(9140C690103070C69)
中国工程物理研究院与国家自然科学基金联合基金(10976004)
中国工程物理研究院发展基金(2009B09002)资助项目~~
关键词
爆炸力学
冲击动力学
本构关系
射流
微喷
多尺度模拟
explosive mechanics
impact dynamics
constitutive relation
jet
material ejection
multi-scale simulation
