Ultrasonic Measurement of Residual Stress in Pre-stretched Aluminum Alloy Plate by Using Ultrasonic and Its Verification
摘 要
探讨了与应力方向成不同角度传播的超声临界折射纵波速度与应力的关系,并利用这一关系对铝合金预拉伸板的残余应力进行了测量,最后对此方法的应力测量结果与钻孔法的测量结果进行了对比。结果表明:随应力增加,沿平行于应力方向传播的临界折射纵波速度减小,而沿垂直于应力方向传播的临界折射纵波速度变化不大,因此临界折射纵波仅对沿其传播方向上的应力分量敏感,可利用其测量特定方向上的应力分量。利用钻孔法对超声应力测量结果进行了验证,得出二者的测量结果在应力分布趋势上具有较好的一致性,两种方法获得的绝对残余应力值的差异是由于其测量范围不同所造成的。
Abstract
The relationship between velocity of ultrasonic critically refracted longitudinal (LCR) wave propagating along different angles with respect to the stress direction and stress was studied in this paper. Besides,the residual stress in pre-stretched aluminum alloy plate was measured by using this relation. Finally,the result of stress measurement by using this method was compared to that of using hole drilling method. The experimental results show that velocity of LCR wave propagating parallel to the stress orientation decreases and velocity of LCR wave propagating perpendicular to the stress direction has hardly changes with the gradually increasing applied stress,therefore LCR wave is only sensitive to stress component along its propagation direction and stress component at specific direction can be measured by using LCR wave. The results of stress measurement by using ultrasonic was verified by using hole drilling method and the result shows that the results of measurement using those two methods have a relatively good consistency in the trend of stress distribution. The difference of the absolute value of residual stress by using those two methods is caused by the difference of their measuring range.
中图分类号 TB553 TG115.28 DOI 10.11973/wsjc201511016
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(11374134,51265044)
收稿日期 2015/3/24
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备注靳聪(1988-),男,硕士研究生,主要从事无损检测与评价研究工作。
引用该论文: JIN Cong,SHI Yi-wei,LU Chao,LIANG Jing,WANG Xiao,ZHAO Li. Ultrasonic Measurement of Residual Stress in Pre-stretched Aluminum Alloy Plate by Using Ultrasonic and Its Verification[J]. Nondestructive Testing, 2015, 37(11): 68~72
靳聪,史亦韦,卢超,梁菁,王晓,赵莉. 铝合金预拉伸板残余应力的超声测量[J]. 无损检测, 2015, 37(11): 68~72
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参考文献
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【3】靳聪,卢超,史亦韦,等.超声偏振横波与铝合金棒材内部应力的关系研究[J].航空材料学报,2015,35(1):71-76.
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【5】王磊,回丽.摩擦搅拌焊接过程残余应力的中子衍射法测量分析[J].无损检测,2012,34(6):33-36.
【6】王树志,任学东,乔海燕,等.铁磁性材料表面残余应力巴克豪森效应的评价[J].无损检测,2013,25(6):26-28.
【7】卢诚磊,倪纯珍,陈立功.巴克豪森效应在铁磁材料残余应力测量中的应用[J].无损检测,2005,27(4):176-180.
【8】赵翠华.残余应力超声波测量方法研究[D].哈尔滨:哈尔滨工业大学,2008.
【9】ROSSINI N S,DASSISTI M,BENYOUNIS K Y,et al.Methods of measuring residual stresses in components[J].Materials and Design,2012,35(1):572-588.
【10】王晓,史亦韦,梁菁,等.超声测量非均匀应力场及应力梯度的研究[J].航空材料学报,2014,34(1):56-61.
【11】吴运新,龚海,廖凯.铝合金预拉伸板残余应力场的评估模型[J].华南理工大学学报:自然科学版,2011,39(1):90-94.
【12】吴克成. 声弹性应力测量[J].实验力学,1987,2(4):3-13.
【13】PRITCHARD S E.The use of ultrasonics for residual stress analysis[J]. NDT International,1987,20(1): 57-60.
【14】NELSON N H.Acoustical birefringence and the use of ultrasonic waves for experimental stress analysis[J].Experimental Mechanics,1974,14(5):169-176.
【15】徐春广,宋文涛,潘学勤,等.残余应力的超声检测方法[J].无损检测,2014,36(7):25-31.
【16】SAYERS C M.Ultrasonic velocities in anisotropic polycrystalline aggregates[J].Journal of Physics D:Applied Physics,1982,15(11):2157-2167.
【17】WANG X,TAO C H,SHI Y W,et al.Study on ultrasonic measurement for non-uniform stress field[J].Advanced Material Research,2013,800(1):213-217.
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