Failure Analysis of Cracked Torsion Beam
The torsion beam for a certain model of motor vehicle cracked in the bench test.The analysis of cracked torsion beam through fracture microscopic analysis,microstructure test,chemical composition analysis and mechanical properties test,and the re-sults show that the fracture was mainly due to the decarburization of the surface.The decarburized layer is present on the surface of the torsion,thus reducing the hardness and the fatigue strength,induced surface cracks by the external force and accelerating extension of the crack.
torsion beam decarburization crack
Lan Sha Tang Beiping Liu Bofang Pu Xia Deng Jing
Changan Auto R&D Center,Changan Automobile Co.,Ltd.
国内会议
上海
英文
1041-1044
2017-10-24（万方平台首次上网日期，不代表论文的发表时间）