• the effect of contact conditions and material properties on plastic yield inception in a spherical shell compressed by a rigid flat

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 560
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the onset of plastic yielding in a spherical shell loaded by a rigid flat is studied for stick and slip contact conditions using finite element analysis. the effect of various material properties on the critical normal load, critical interference and critical contact area at the onset of plastic yielding is investigated and the location where plastic yielding first occurs is determined. a comparison is made with results obtained previously for slip contact condition. substantial differences are found at low to medium poisson’s ratio values, while some similarities are found to occur for high poisson’s ratio values. in particular, a spherical shell is more prone to yield under stick than under slip contact condition.

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