| EFFECT OF PUNCH ANGLE ON ENERGY ABSORBING CHARACTERISTICS OF TUBE-TYPE CRASH ELEMENTS |
| W. M. CHOI1, J. S. KIM2, H. S. JUNG2, T. S. KWON2 |
1University of Science & Technology
2Korea Railroad Research Institute |
|
|
|
|
| |
| ABSTRACT |
|
As a crash energy absorber, a tube-type crash element (expansion tube) dissipates kinetic energy through the internal deformation energy of the tube and through frictional energy. In this paper, the effects of the variation of punch angles on the energy-absorbing characteristics of expansion tubes were studied by quasi-static tests using three punch angles (15 |
| Key Words:
Tube expanding, Plastic deformation energy, Frictional energy, Total energy, Least square method |
|
Preview
Full text via DOI
Download Citation 
Print 
