• non-cyclic shakedown/ratcheting boundary determination - part 2: numerical implementation

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 648
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     determining the boundary between the shakedown and ratcheting domains (ratchet boundary) for a component using cyclic elastic-plastic analysis is computationally very expensive since it requires a solution over several loading cycles to be repeated several times. a non-cyclic method to identify the ratchet boundary directly without the need for cyclic analysis was recently proposed. the numerical implementation of the non-cyclic method offers the promise to be an attractive alternative to cyclic elastic-plastic analysis since it is simple, and requires considerably less computational effort and computer storage space. another attractive feature is that the method provides a go/no go criterion for the ratchet boundary, whereas the results of a cyclic elastic-plastic analysis are often difficult to interpret near the ratchet boundary. to explore the performance of the method further, it is applied to a number of configurations that include two-dimensional and three-dimensional effects.

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