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 Finite Difference Limit Analysis of Circular Plates file H. Huh  2005.11.29 4351
255 Finite Element Stress Analysis of the Tire Contact Problem file H. Huh Y. K. Kwak Y. ...  2005.11.29 5627
254 Elasto-Plastic Finite Element Analysis with Directional Reduced Integration in Sheet Metal Forming file H. Huh S. S. Han D. Y...  2005.11.29 4857
253 Bake Hardenability of Batch Annealed Steel Sheets with Prestrai file H. Huh P. S. Whang  2005.11.29 5046
252 Finite Element Analysis with Pressure Cycle Control of Superplastic Sheet Metal Forming Process file H. Huh S. S. Han D. Y...  2005.11.29 4169
251 Numerical Simulation of Extrusion Process with Work-hardening Materials by Finite Element Limit Analysis file H. Huh C. H. Lee  2005.11.29 4928
250 Numerical Simulation of Plastic Flow by Finite Element Limit Analysis file H. Huh W. H. Yang  2005.11.29 4479
249 Numerical Simulation of Tube Extrusion for Work-Hardening Materials by Finite Element Limit Analysis file H. Huh C. H. Lee  2005.11.29 4318
248 Numerical Simulation of Bead Formation by an Elasto-Plastic Finite Element Method file H. Huh B. K. Chun  2005.11.29 4197
247 Finite Element Analysis of Superplastic Blow Forming Process with Pressure Cycle Control file H. Huh S. S. Han J. S...  2005.11.29 4316
246 Experimental Evaluation of Mechanical Properties of Rolled Sheet Metal for Auto-body file H. Huh et al.  2005.11.29 4208
245 Collapse Load Calculation for Defective Circular Pipes by Finite Element Limit Analysis file H. Huh et al.  2005.11.29 4620
244 Effect of Bending on Sheet Metal Forming Analysis by a Finite Element Method file H. Huh S. S. Han D. Y...  2005.11.29 3746
243 Analysis of Punch Forming of Superplastic Materials by a Finite Element Method file H. Huh Y. J. Choi K. ...  2005.11.29 3508
242 Analysis of Stretch Forming of Turbine Blades by an Elasto-plastic Finite Element Method file H. Huh T. H. Choi  2005.11.29 4766
241 Binder Wrap Analysis with a Finite Element Method using a Surface Boundary Condition file I. S. Song D. Y. Yang...  2005.11.29 3376
240 Modified Membrane Finite Element Simulation of Square Cup Drawing Processes considering Geometric Influence file H. Huh S. S. Han D. Y...  2005.11.29 3737
239 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 3102
238 3-D Finite Element Analysis of Superplastic Blow Forming file K. S. Lee H. Huh  2005.11.29 4384
237 Blank Design and Strain Prediction in Sheet Metal Forming Process file H. Huh C. H. Lee  2005.11.29 3686