저자명 Namsu Park, Chunghee Park, Hoon Huh, Jungsu Park 
Name 2014 KIMST Annual Conference 
Year 2014 
page  
This paper is concerned with the prediction of deformation behavior of PBX (Polymer-Bonded eXplosive) simulant during high speed crash. PBX is an energetic material in which small explosive crystals are bonded in a polymer matrix occupying typically 5−10 % by weight. PBX is used in a wide variety of weapon applications ranging from rocket propellants to the main explosive charge in conventional munitions and weapon systems. It is important to characterize the mechanical properties of PBX and to accurately model their response behavior since unexpected external stimuli could cause accidental detonation during manufacturing, transportation or handling. When PBX is applied in a warhead system that undergoes severe dynamic loading conditions during high speed crash, it is significant to investigate the deformation behavior of PBX subjected to dynamic loads in order to guarantee the safety of the warhead system before explosion. PBX in the warhead system undergoes not only localized large deformation with high strain rates induced by direct dynamic loads but also small deformation with low and intermediate strain rates due to stress wave propagation. The strain hardening behavior of PBX at quasi-static states, intermediate and high strain rates should be considered to perform the design of the warhead system since PBX undergoes deformation at a wide range of strain rates irregularly distributed in PBX from quasi-static states to high strain rates. The deformation behavior of PBX and its mechanical characteristic in the warhead were investigated using finite element analysis, which includes the effect of various strain rates.
번호 제목 저자명 날짜 조회 수
256 Tension/compression Test of Giga-grade Steel Sheets Considering Intermediate Strain Rates file Geunsu Joo, Hoon Huh  2017.06.07 1568
255 Evaluation of Measurement Uncertainty of Dynamic Tensile Properties M.K. Choi, H. Choe, H...  2017.06.07 1601
254 Evaluation of Tensile Properties of Auto-body Plastics Using DIC Method and Force Equilibrium Grid Method file Jesung Yoo, Park Nams...  2017.06.07 1617
253 Evaluation of Dynamic Hardening Models With Taylor Impact Tests at Ultra High Strain Rates For 4340 Steel file M. J. Piao, I. Lee, H...  2017.10.11 1813
252 High Strain Rate Tensile Test of Sheet Metals with a New Tension Split Hopkinson Bar file D. T. Jung H. Huh W. ...  2005.11.29 2827
251 Collapse Analysis of a Simplified Vehicle Structure Models Using Finite Element Limit Analysis file H. S. Kim H. Huh  2005.11.29 2887
250 Finite Element Limit Analysis of a Nuclear Reactor as a Pressure Vessel considering Work-hardening Effect file H. S. Kim H. Huh H. D...  2005.11.29 3097
249 Optimum Design of Draw-bead Force in Sheet Metal Stamping using Rigid-plastic FEM and Response Surface Methodology file S. H. Kim H. Huh A. T...  2005.11.29 3102
248 Design of Bead Force and Die Shape with Finite Element Method and Optimization Technique in Sheet Metal Forming Processes file S. H. Kim H. Huh  2005.11.29 3120
247 Finite Element Limit Analysis of a Nuclear Reactor Lower Head Considering Thermal Softening in Severe Accident file K. P. Kim H. Huh J. H...  2005.11.29 3134
246 Crashworthiness of Auto-body Structures with the Dynamic Constitutive model file W. J. Kang H. Huh  2005.11.29 3138
245 Modeling of a Ductile Fracture Model Considering the Anisotropy of Sheet Metal file N. Park and H. Huh  2015.12.28 3155
244 Constitutive relation of sheet metals by using a Tension Split Hopkinson Bar file W. J. Kang J. H. Lim ...  2005.11.29 3175
243 Finite Element Analysis of C. V. Joint Boot and Application to Design Change file S. H. Kim H. W. Lee H...  2005.11.29 3198
242 Finite Element Analysis for Deformation of Shell-like Rubber Structures file H. Huh H. W. Lee S. H...  2005.11.29 3256
241 Axial Collapse Analysis of Square Tubes using Finite Element Limit Analysis file H. S. Kim H. Huh  2005.11.29 3264
240 Three Dimensional Multi-step Inverse Analysis for Optimum Blank Design in Sheet Metal Forming file C. H. Lee H. Huh  2005.11.29 3267
239 Sheet Metal Forming Analysis with Planar Anisotropic Materials using a Modified Membrane Element considering Bending Effect file T. H. Choi H. Huh  2005.11.29 3276
238 Numerical Simulation of Drawbead Formation in a Binder Wrap Process by an Elasto-plastic Finite Element Method file T. H. Choi H. Huh J. ...  2005.11.29 3285
237 3-D Finite Element Modeling of Fiber Reinforced Rubber Composite using the Rebar Element file S.H. Jeong J.H. Song ...  2006.06.14 3295