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Abstract：
Shear strain-based multiaxial fatigue damage model was used to calculate fatigue damage. And, the shear strain-based multiaxial fatigue damage model in combination with three commonly used fatigue damage accumulation rules namely linear damage rule, damage curve approach and nonlinear continues damage cumulative model for multiaxial fatigue are used to predict fatigue life for titanium alloy BT9 and GH4169 superalloy under multiaxial block loading, the results showed a good agreement with experiment life. Through comparison of predicting fatigue damage, the results obtained showed that among these three damage accumulation rules linear damage rule gives the best agreement with the experimental results for titanium alloy BT9 under block loading and damage curve approach gives the best agreement with the experimental results for GH4169 superalloy under block loading.
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Journal of Mechanical Strength
ISSN： 1001-9669
Year： 2012
Issue： 6
Volume： 34
Page： 875-880
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SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 6
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