Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-A.19126.96.36.1992
Title & Authors
High-Velocity Deformation Analysis Using the Rigid-Plastic Finite Elemement Method Considering Inertia Effect Yoo, Yo-Han; Park, Khun; Yang, Dong-Yol;
The rigid-plastic finite element formulation including the inertia force is derived and then the rigid-plastic finite elemnt program considering the inertia effect is developed. In order to consider the strain hardening, strain rate hardening and thermal softening effects which are frequentrly observed in high-velocity deformation phenomena, the Johnson-Cook constitutive odel is applied. The developed program is used to simulate two high-velocity deformation problemss ; rod impact test and hdigh-velocity compression precess. As a result of rod impact test simulation, it is found that the siulated result has a good agreement with the experimental observation. Through the high-velocity compression process simulation. it is also found that the accuracy of the simulated results is dependent upon the time increment size and mesh size.
Reigid-Plastic Finite Element Method;Inertia Effect;Rod Impact Simulation;High-Velocity Compression Simulation;