TY - JOUR
T1 - Numerical Simulation of the Fracture Characteristics of Copper EFP with Different Constitutive Models
AU - Ding, Li
AU - Jiang, Jianwei
AU - Men, Jianbing
AU - Wang, Shuyou
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2021/2/24
Y1 - 2021/2/24
N2 - With three different constitutive model, LS-DYNA hydro code is applied to simulate the forming and fracture characteristics of Copper EFP. By comparison of numerical results of different models, the appropriate constitutive model to simulate the complete and fracture EFPs can be obtained. By comparison of experimental and numerical results, it can be concluded that Steinberg-Guinan constitutive model gives the best result to predict the complete EFP's forming shape with minimum error, while Johnson-Cook constitutive model with failure model and h-adaptive algorithm is the most suitable method to predict the fracture of EFP in axial direction. The research results are important and significant in the deign of shaped charge, which could provide a guideline to predict the fracture of EFP in numerical simulation.
AB - With three different constitutive model, LS-DYNA hydro code is applied to simulate the forming and fracture characteristics of Copper EFP. By comparison of numerical results of different models, the appropriate constitutive model to simulate the complete and fracture EFPs can be obtained. By comparison of experimental and numerical results, it can be concluded that Steinberg-Guinan constitutive model gives the best result to predict the complete EFP's forming shape with minimum error, while Johnson-Cook constitutive model with failure model and h-adaptive algorithm is the most suitable method to predict the fracture of EFP in axial direction. The research results are important and significant in the deign of shaped charge, which could provide a guideline to predict the fracture of EFP in numerical simulation.
KW - Constitutive model
KW - Explosively Formed Projectile
KW - Johnson-Cook failure model
KW - Numerical simulation
KW - h-adaptive algorithm
UR - http://www.scopus.com/inward/record.url?scp=85103105114&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1813/1/012012
DO - 10.1088/1742-6596/1813/1/012012
M3 - Conference article
AN - SCOPUS:85103105114
SN - 1742-6588
VL - 1813
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012012
T2 - 2020 International Conference on Modeling, Big Data Analytics and Simulation, MBDAS 2020
Y2 - 20 December 2020 through 21 December 2020
ER -