High cycle fatigue material properties are not uniformly distributed on cylinder heads due to the casting process. Virtual Aluminum Casting (VAC) tools have been developed within Ford Motor Company to simulate the effects of the manufacturing process on the mechanical properties of cast components. One of VAC features is the ability to predict the high cycle fatigue strength distribution. Residual stresses also play an important role in cylinder head high cycle fatigue, therefore they are also simulated and used in the head high cycle fatigue analysis. Cylinder head assembly, thermal and operating stresses are simulated with ABAQUS™. The operating stresses are combined with the residual stresses for high cycle fatigue calculations. FEMFAT™ is used for the high cycle fatigue analysis. A user-defined Haigh diagram is built based on the local material properties obtained from the VAC simulation. It is demonstrated that the use of local properties distribution in FEMFAT™ has significantly improved the cylinder head high cycle fatigue simulation results.


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    Title :

    Aluminum Cylinder Head High Cycle Fatigue Durability Including the Effects of Manufacturing Processes


    Additional title:

    Sae Technical Papers


    Contributors:
    Engler-Pinto, Carlos (author) / Prabhu, Eben (author) / Li, Mei (author) / King, Michael (author) / Chen, Xingfu (author) / Su, Xuming (author)

    Conference:

    SAE 2012 World Congress & Exhibition ; 2012



    Publication date :

    2012-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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