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Multiaxial Fatigue Behavior of Cylinder Head for a Free Piston Linier Engine

M. M., Rahman and M. R. M., Rejab and K., Kadirgama and M. M., Noor and A. K., Ariffin (2009) Multiaxial Fatigue Behavior of Cylinder Head for a Free Piston Linier Engine. Journal of Applied Sciences , 9 (15). ISSN 1812-5654


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Abstract: This study was presented the assessment of multiaxiai fatigue criteria of cylinder head for a free piston linear engine using finite element analysis techniques. The structural solid modeling of cylinder head was developed utilizing the computer-aided design software. The finite clement modeling and analysis were performed utilizing the finite element analysis codes. The biaxiality analysis was performed to assess the multiaxiai fatigue. The material parameter and Hoffmann-Seeger methods were considered to modify the uniaxial material properties. Prediction of fatigue life, effect of the stress combination for the proportional loading condition was investigated in this study. It can be seen that the biaxiality correction method gives conservative predicted life as compared to the uniaxial loading. The materials parameter correction method gives most conservative prediction with SWT criteria. It is also observed that more conservative prediction to use Signed Tresca parameter and Signed von Mises stress gives the result that lie between the absolute maximum principal and signed Tresca results. This approach shows to be quite suitable for integration with a commercial finite element code to provide for an integrated design environment for fatigue life evaluation under general multiaxiai loading conditions.

Item Type: Article
Additional Information: Prof. Dr. Md Mustafizur Rahman (M. M. Rahman) Dr. Kumaran Kadirgama (K. Kadirgama) Dr. Mohd Ruzaimi Mat Rejab (M. R. M. Rejab) Muhamad Mat Noor (M. M. Noor)
Uncontrolled Keywords: Automotive component, finite element analysis, strain-life, biaxility, aluminium alloy
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 25 Aug 2011 04:02
Last Modified: 25 Jan 2018 07:01
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