저자명 Chunghee Park Hoon Huh Jungsu Park 
Name DAPS2012 
Place Jeju, Korea 
Year 2012 
This paper is concerned with a pulse shaping technique for very soft materials in split Hopkinson pressure bar tests. The importance of the material properties at very high strain rates has been emphasized for numerical analysis of impact loading condition. Split Hopkinson pressure bar tests are widely utilized to acquire the material properties at high strain rates. In split Hopkinson pressure bar tests, pulse shaping techniques were introduced in order to minimize wave dispersion and to achieve stress equilibrium and constant strain rate deformation in a specimen. Polycarbonate bars are employed for split Hopkinson pressure bar tests for the low impedance of very soft materials. Split Hopkinson pressure bar tests are conducted with various dimensions of pulse shapers. Additionally, finite element analyses of wave propagation in split Hopkinson pressure bars are performed with various pulse shapers as a parameter study. Guidelines for pulse shaping techniques are proposed for more accurate acquisition of data from split Hopkinson pressure bar tests.
번호 제목 저자명 날짜 조회 수
136 Development of Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle file Kwanghyun Ahn Hoon Hu...  2012.12.10 7097
135 Effect of Tensile Speed on the Failure Load of Laser Welding under Combined Loading Conditions file Jiwoong Ha Hoon Huh K...  2012.12.10 4721
134 Dynamic Failure Characteristics of Electric Resistance Spot Welds in DP Steel Sheets [2] file Jiwoong Ha Hoon Huh J...  2012.12.10 8269
133 Rate-dependent two-surface model for cyclic hardening behaviour of advanced high strength steel sheets file Jeehyang HUh Hoon Huh...  2012.11.06 6442
132 Quantification of Material Properties of Structural Materials for Warhead at Various Strain Rates file Kwanghyun Ahn Hoon Hu...  2012.09.26 6877
131 Evaluation of Dynamic Hardening Models for Metallic Materials at Wide Range of Strain Rates file Hoon Huh Kwanghyun Ah...  2012.09.26 6894
130 Compressive Characteristics of PBX Simulant with the Variation of the Strain Rate file Chunghee Park, Sehwan...  2012.09.21 8358
» Pulse Shaping Techniques for Soft Materials in Split Hopkinson Pressure Bar Tests file Chunghee Park Hoon Hu...  2012.07.13 5698
128 Effect of Strain Rate on the Material Characteristics of a Fragment-Simulating Warhead and an Armor Plate file Jiwoong Ha Hoon Huh K...  2012.06.27 6589
127 Dynamic Hardening Equations of Metallic Materials with the Variation of Crystalline Structures file K. Ahn H. Huh L. Park  2012.06.22 5088
126 Micro-Tensile Tests of Aluminum Thin Foil with the Variation of Strain Rate file J.B. Kwon J. Huh H. H...  2012.06.19 6994
125 Comparison of Dynamic Hardening Equations for Metallic Materials with the Variation of Crystalline Structures file K. Ahn H. Huh L. Park  2012.05.07 5255
124 Variational Time Integrators for Handling Discontinuous Interfaces in Solids file S. J. Lim S. S. Cho H...  2012.03.20 7542
123 Limit dome height prediction based on a new ductile fracture criterion file Yanshan Lou Hoon Huh ...  2012.01.11 5388
122 Formability Prediction of Advanced High Strength Steel with a New Ductile Fracture Criterion file Yanshan Lou Sungjun L...  2012.01.11 5075
121 Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle Kwanghyun Ahn Hoon Hu...  2011.12.22 7151
120 Failure Characteristics of Spot Welds of AHSS under Quasi-static Conditions file J. Ha H. Huh H. Lee K...  2011.12.15 5025
119 Standard Uncertainty Evaluation for Dynamic Tensile Properties of Auto-body Steel Sheets Sehwan Jeong Hoon Hu...  2011.12.13 4522
118 A Method For Treating Temporal And Spatial High Gradient Phenomena In The Dynamics Of Solids K.C. Park S.j. Lim H....  2011.08.03 4447
117 Cyclic tension/compression test of auto-bod steel sheets with the variation of the strain rate file G. H. Bae H. Huh  2011.07.04 4539