چکیده مقاله
A novel method of glass sheet thermal cutting using an impinging hot air jet has recently been improved In this method an existing crack is made to follow the moving heat source behind it Complex profiles can be cut with a great cut surface by this method In this paper a three dimensional finite element simulation of glass thermal cutting is established Sequentially coupled thermal and structural analysis is conducted Thermal stress field is obtained from the inhomogeneous temperature distribution due to the relative motion of nozzle and glass sheet Under cutting condition, the stress intensity factor at the crack tip exceeds the fracture toughness of glass sheet Achieved crack tip profile is almost an oblique line with respect to sheet surface The variation of the distance between the crack tip and nozzle axis with the air jet temperature and heat source velocity is investigated
کلیدواژهها
نویسندگان
A.R Shahani
Associate Professor Faculty of Mechanical Engineering, K N T Universityof Technology, Vafadar e Sharghi St , ۴th Sq ,
G Bordbar
M Sc Student
شیوه ارجاع
Shahani, A.R and Bordbar, G,1384,Three Dimensional Finite Element Simulation of Thermal Glass Cutting,01st Tehran International Congress on Manufacturing Engineering (TICME2005),Tehran
ارائهشده در
مجموعه مقالات اولین کنفرانس بین المللی و هفتمین کنفرانس ملی مهندسی ساخت و تولید1 فروردین 1384 · تهران