EFFECT OF SPECIMEN DIAMETER ON WELDABILITY OF IMPAT WELDING

Autor:	Hidefumi Date
Rok vydání:	2008
Předmět:	Materials science Impact velocity Buckling Deformation mechanism Projectile law Melting temperature Weldability Statistical and Nonlinear Physics Welding Composite material Condensed Matter Physics law.invention
Zdroj:	International Journal of Modern Physics B. 22:1659-1665
ISSN:	1793-6578 0217-9792
DOI:	10.1142/s0217979208047225
Popis:	Impact welding has been carried out using a projectile having a diameter of 11 and 5 mm at an impact velocity of 200 m/s or more. A large projectile regardless of the slenderness ratio, was welded to a stainless steel target. However, only a small projectile with a slenderness ratio less than 1.2 was welded to the same target. In order to examine the effect of the diameter of the projectile on the weldability, the temperature elevating process in two cylindrical projectiles subjected to a longitudinal impact was evaluated numerically using LS-DYNA. The numerical results indicated that since the deformation mechanism of a projectile with a slenderness ratio less than 1.0 is different of that of the projectile with the slenderness ratio more than 1.5, the small projectile with the slenderness ratio less than 1.0 can be welded to the target.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::93ecb1bb2054db8d48a5f2068875e1a4 https://doi.org/10.1142/s0217979208047225 Zobrazit plný text záznamu