According to the linear cumulativedamagetheory, a method for estimating life for welding structure of farm machinery acted under load spectrum is given.
本文根据线性累积损伤理论,给出了农机焊接件在谱载荷作用下的寿命估算方法。
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Finally, the methods for calculating fatigue life based on fracture mechanics for welded node and cumulativedamagetheory for bolted sphere node respectively have been presented.