论文信息 - Experimental simulation and theoretical modelling of crack initiation and propagation due to thermal cycling

Experimental simulation and theoretical modelling of crack initiation and propagation due to thermal cycling

AbstractDamage to tools subjected to repeated thermal shock is studied both experimentally using a simulator to reproduce thermal gradients on a specimen and theoretically by means of a thermal elastic plastic calculation using the finite element method.Analysis of thermal fatigue cracking involves the use of stereological parameters and fracture mechanics concepts. Application of this analysis to hot-rolling mill roll materials provides a good picture of in-service phenomena.

A. Dias | H. Lieurade | J. Giusti | A. Wiśniewski

[1] D. M. Parks. A stiffness derivative finite element technique for determination of crack tip stress intensity factors , 1974 .

[2] H. Lieurade,et al. Rôle de la nature et de la morphologie des carbures sur la tenue en fatigue thermique des matériaux pour cylindres de laminage à chaud , 1989 .

[3] A. Angelo,et al. Etude des mécanismes de fatigue thermique et modélisation du phénomène dans le cas de matériaux pour cylindres de laminoirs à chaud , 1985 .

[4] Francis I. Baratta,et al. Stress intensity factors for internal multiple cracks in thick-walled cylinders stressed by internal pressure using load relief factors , 1978 .