S0305-4-4 時間強度によるアルミ合金の高温疲労限度線図 : その1 : 破壊形態による線図の区分([S0305-4]計測・疲労強度)

概要

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A fatigue strength diagram is used when we estimate fatigue strength under mean stress or residual stress. The most well-known is the modified Goodman diagram, which connects tensile strength and endurance limit with a straight line. However, a fatigue strength diagram of aluminum alloy is not obvious because aluminum alloy does not have endurance limit-especially at high temperature. Thus, we make up the generalized fatigue strength diagram at N cycles of aluminum alloy at high temperature, using the strength at N cycles instead of the endurance limit, and divide the straight line by fracture feature; plastic deformation and creep. In other words, the fatigue strength diagram of aluminum alloy consists of 3 regions.
2010-09-04