Recent developments of SPH in modeling explosion and impact problems

IMECH-IR > 流固耦合系统力学重点实验室

	Recent developments of SPH in modeling explosion and impact problems
	Liu MB(刘谋斌); Feng DL(冯殿垒); Guo ZM; Liu MB(刘谋斌)
会议录名称	Particle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013
	2013
页码	428-435
会议名称	3rd International Conference on Particle-Based Methods Fundamentals and Applications, Particles 2013
会议日期	SEP 18-20, 2013
会议地点	Stuttgart, Germany
摘要	Explosion and impact problems are generally characterized by the presence of shock waves, intense localized materials response and intensive loadings. Most of the wave propagation hydro-codes for such problems use traditional grid based methods such as finite difference methods (FDM) and finite element methods (FEM). Though many successful achievements have been made using these methods, some numerical difficulties still exist. These numerical difficulties generally arise from large deformations, large inhomogeneities, and moving interfaces, free or movable boundaries. Smoothed particle hydrodynamics (SPH) is a Lagrangian, meshfree particle method, and has been widely applied to different areas in engineering and science. SPH method has been intensively used for simulating high strain hydrodynamics with material strength, due to its special features of meshfree, Lagrangian and particle nature. In this paper, some recent developments of the SPH in modelling explosion and impact problems will be introduced. A modified scheme for approximating kernel gradient (kernel gradient correction, or KGC) has been used in the SPH simulation to achieve better accuracy and stability. The modified SPH method is used to simulate a number of problems including 1D TNT detonation, linear shaped charge and explosively driven welding. The effectiveness of the modified SPH method has been demonstrated by comparative studies of the SPH results with data from other resources.
课题组名称	LMFS冲击与耦合效应(LHO)
ISBN号	9788494153181
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48297
专题	流固耦合系统力学重点实验室
通讯作者	Liu MB(刘谋斌)
推荐引用方式 GB/T 7714	Liu MB,Feng DL,Guo ZM,et al. Recent developments of SPH in modeling explosion and impact problems[C]Particle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013,2013:428-435.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Recent developments （755KB）			开放获取	--	浏览下载