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疲劳门槛值
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疲劳门槛值
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理学
﹝疲劳﹞
释
fatigue threshold
疲劳门槛值
在疲劳载荷作用的规定循环数内,使标准的含裂纹试件中的长裂纹开始发生明显扩展的裂纹尖端应力强度因子循环变化幅度。记为。又称疲劳裂纹扩展门槛值、疲劳阈值。
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