一种高效准确的疲劳裂纹几何尺寸自动测量方法
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摘要
在进行常规疲劳试验时,人工测量疲劳裂纹尺寸工作效率低,失误概率高,数据无法进行数字化管理。利用影像测量仪进行裂纹形貌识别,并通过合理安排试样排列顺序和测量顺序,最终实现了疲劳裂纹几何尺寸的自动化大批量测量。实践证明:该自动测量方法可适用于大批量检测需求下的各种金属材料疲劳断裂试样的疲劳裂纹几何尺寸测量。
In the conventional fatigue test,manual measurement of fatigue crack size has low work efficiency and high probability of fault,and the data can not be digitally managed.The crack morphology was identified by image measuring instrument,and the geometrical dimensions of fatigue cracks were measured automatically in arranging sequence and order of samples reasonably.The practice show that the automatic measurement method can be used to measure the fatigue cracks geometrical dimensions of various metallic materials fatigue fracture samples under the demand of mass inspection.
In the conventional fatigue test,manual measurement of fatigue crack size has low work efficiency and high probability of fault,and the data can not be digitally managed.The crack morphology was identified by image measuring instrument,and the geometrical dimensions of fatigue cracks were measured automatically in arranging sequence and order of samples reasonably.The practice show that the automatic measurement method can be used to measure the fatigue cracks geometrical dimensions of various metallic materials fatigue fracture samples under the demand of mass inspection.
引文
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[8]李晓阳,韩赞东,冉刚,等.基于交流电位法的疲劳裂纹长度测量方法与装置[J].理化检验(物理分册),2015,51(8):542-545.
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[10]张峰,罗秀梅.柔度法测试车轮轮箍的疲劳裂纹萌生寿命[J].理化检验(物理分册),2003,39(7):351-354.
[11]先明乐,徐振高,杨小林.红外热波检测复合材料时缺陷深度的自动测量[J].无损检测,2009,31(6):460-463.
[12]李华,陈果,陈新波,等.航空发动机内部裂纹自动测量方法研究[J].计算机工程与应用,2016,52(11):233-237.
[2]蒋瑜,陶俊勇.结构振动疲劳加速试验技术研究[J].装备环境工程,2016,13(5):30-35.
[3]陈剑峰,朱亦刚,陈勃.腐蚀环境下疲劳裂纹扩展速率自动测量技术研究[J].失效分析与预防,2007,2(3):25-27.
[4]LINK R E,GONG Z,DUQUESNAY D L,et al.Measurement and interpretation of fatigue crack growth in 7075 aluminum alloy using acoustic emission monitoring[J].Journal of Testing and Evaluation,1998,26(6):567-574.
[5]ROBERTS T M,TALEBZADEH M.Acoustic emission monitoring of fatigue crack progagation[J].Journal of Constructional Steel Research,2003,59(6):695-712.
[6]SAXENA A,HUDAK S.Review and extension of compliance information for common crack growth specimens[J].International Journal of Fracture,1978,14(5):453-468.
[7]陈剑峰,朱亦刚,陈勃.腐蚀环境下疲劳裂纹扩展速率自动测量技术研究[J].失效分析与预防,2017,2(3):25-27.
[8]李晓阳,韩赞东,冉刚,等.基于交流电位法的疲劳裂纹长度测量方法与装置[J].理化检验(物理分册),2015,51(8):542-545.
[9]徐纪林,李禾,薛以年.表面裂纹扩展速率的测定:用交流电位法测量裂纹深度[J].理化检验(物理分册),1992,3(2):37-40.
[10]张峰,罗秀梅.柔度法测试车轮轮箍的疲劳裂纹萌生寿命[J].理化检验(物理分册),2003,39(7):351-354.
[11]先明乐,徐振高,杨小林.红外热波检测复合材料时缺陷深度的自动测量[J].无损检测,2009,31(6):460-463.
[12]李华,陈果,陈新波,等.航空发动机内部裂纹自动测量方法研究[J].计算机工程与应用,2016,52(11):233-237.