Browse > Article

Study on the Dynamic Fracture of Rod Impacting on Plate at High Speed  

Cho, Jae-Ung (공주대학교 기계.자동차공학부)
Han, Moon-Sik (계명대학교 기계.자동차공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.16, no.4, 2007 , pp. 108-112 More about this Journal
Abstract
This study analyzes the dynamic fracture phenomenon that aluminum rod impacts aluminum plate or rigid plate and deforms. The value of von-Mises stress in the instance that aluminum rod deforms on rigid plate after contact becomes 1.3 times as large as that in the instance of contact. On the contrary, the value of von-Mises stress in the instance that aluminum rod goes through aluminum plate after contact becomes 0.7 times as small as that in the instance of contact. The value of internal energy in the instance that aluminum rod contacts aluminum plate becomes 2.3 times as large as that in the instance that aluminum rod contacts rigid plate. But the value of kinetic energy in the instance that aluminum rod contacts aluminum plate becomes 0.9 times as small as that in the instance that aluminum rod contacts rigid plate. The value of internal energy in the instance that aluminum rod goes through aluminum plate after contact becomes 0.7 times as small as that in the instance that aluminum rod impacts rigid plate and deforms. And the value of sliding energy in the instance that aluminum rod contacts aluminum plate becomes 0.2 times as small as that in the instance that aluminum rod contacts rigid plate. The value of total energy in case that aluminum rod impacts aluminum plate becomes 0.9 times as small as that in the case that aluminum rod impacts rigid plate.
Keywords
impact; rigid plate; von-Mises stress; internal energy; sliding energy; total energy;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Barlat, F. and Lian, J., 1989, 'Plastic Behavior and Stretchability of Sheet Metals. Part I: A Yield Function for Orthotropic Sheets Under Plane Stress Conditions,' Int. Journal of Plasticity, Vol. 5, pp. 51-66   DOI   ScienceOn
2 Jang, I. S. and Chae, D. B., 2000, 'The Derivation of Simplified Vehicle Body Stiffness Equation Using Collision Analysis,' Trans. KSAE, Vol. 8, No. 4, pp. 177-185   과학기술학회마을
3 Song, J. H., Park, J. M., Chae, H. C., Kang, Y. H. and Yang, S. M., 2002, 'The Estimation of Dynamic Strength Characteristics of High Tensile Steel by Dynamic Lethargy Coefficient,' Trans. KSAE, Vol. 10, No. 2, pp. 96-100   과학기술학회마을
4 Bergmark, A. and Kao, H. R., 1991, 'Dynamic Crack Initiation in 3PB Ductile Steel Specimens,' Technical Report, LUTFD2 TFHF-3041, Lund Institute of Technology, Sweden, pp. 1-23
5 Barlat, F., Lege, D. J. and Brem, J. C., 1991, 'A Six-Component Yield Function for Anistropic Materials,' Int. Journal of Plasticity, Vol. 7, pp. 693-712   DOI   ScienceOn
6 LS-DYNA Theoretical Manual, ANSYS Version 10.0, 2005
7 Hill, R., 1948, 'A Theory of the Yielding and Plastic Flow of Anisotropic Metals,' Proceedings of the Royal Society of London, Series A., Vol. 193, pp. 197-281