Durability prediction of EN 1.4512 exhaust mufflers under thermomechanical loading

作者：Seruga Domen^*; Hansenne Eric; Haesen Vik; Nagode Marko

来源：International Journal of Mechanical Sciences, 2014, 84: 199-207.

DOI：10.1016/j.ijmecsci.2014.04.004

• Muffler
• Silencer
• Creep
• Fatigue
• Durability
• Damage

A damage operator approach for random non-isothermal loading is demonstrated in this paper. The approach is then used to predict the damage of a thermomechanically loaded exhaust muffler. Material properties of the basic material and the weld have been treated separately. The results from thermal and structural analyses using FEA have been applied to the exhaust muffler in LMS Virtual.Lab and both fatigue and creep damages predicted. Tested exhaust mufflers were then subjected to the same loading conditions as in the calculation, and load cycles were repeated up to the point of failure or 2 million cycles. Simulated and test results are comparable.

• 出版日期2014-7