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搅拌摩擦焊接头疲劳寿命统计分布特征

Research on Fatigue-life Statistical Distribution Characteristics of Friction Stir Welding Joints
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摘要 以搅拌摩擦焊接头疲劳寿命为研究对象,使用概率统计的方法,研究2024搅拌摩擦焊接头疲劳寿命统计分布特征,其具有代表性的统计参量为形状参数b和特征寿命N_a,通过分析证实了2024铝合金搅拌摩擦焊接头疲劳寿命符合双参数威布尔分布。 Using the statistical method of the probability, fatigue-life statistical distribution characteristics of 2024 aluminum alloy friction stir welding joints is researched which including shape parameter b and feature life Na. The results show the dis- persibility of fatigue-life of the joints is verified and accords with Weibull distribution.
作者 窦秋芳 弓云昭 杨俊
机构地区 中国飞机强度研究所
出处 《机械研究与应用》 2013年第5期52-53,56,共3页 Mechanical Research & Application
关键词 搅拌摩擦焊 疲劳寿命 概率统计 统计参量 威布尔正态分布 friction stir welding fatigue-life probability and statistics statistic parameters Weibull distribution
分类号 TG457 [金属学及工艺—焊接]
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参考文献10

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二级参考文献26

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机械研究与应用
2013年 第5期

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