Edge Effect on Analysis of Residual Stresses in Steel Welded Parts Using Ultrasounds

Abstract:

Our past research to estimate residual stress into steel welded parts was based on dependence between sound velocity and elastic modulus using longitudinal sound wave. To conduct the experiments was designed sample as a frame. The sample was loaded using adapted equipment and the results were used for FEA tools (SolidWorks SimulationXpress) to obtain the distribution of stresses and displacements. This approach allowed the location of points of interest to the investigation with ultrasound. During the experimentation we arrived to suspect the influence of marginal effect on analysis of residual stresses in steel welded parts using ultrasounds. New experiments were carried out by using part samples permitting to avoid the marginal effect.

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 479-485
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.479
• Online since: November 2015
• Authors: Petru Dușa, Radu Baciu Lupașcu, Eugen Purice
• Keywords: Residual Stress, Strains, Ultrasonic Investigation, Welding

References

[1] NDT Resource Center, Transducer Beam Spread, available at https: /www. nde-ed. org/EducationResources/CommunityCollege/Ultrasonics/EquipmentTrans/beamspread. htm, accessed: 10. 02. (2015).

[2] Signal Processing, The Ultrasonic Field, available at http: /www. signal-processing. com/us_field. html, accessed: 10. 02. (2015).

[3] J. Krautkramer, H Krautkramer, Ultrasonic Testing of Materials, 4th Edition, Springer-Verlang, Berlin, (1990).

[4] E 1065 – 99 Standard Guide for Evaluating Characteristics of Ultrasonic Search Units ASTM Standard, (2003).

[5] P. J. Shull Nondestructive Evaluation: Theory, Techniques, and Applications, CRC Press, (2002).

[6] P. Dusa, R. B. Lupascu, Analysis of residual stresses in steel welded parts using ultrasounds, Applied Mechanics and Materials. 657 (2014) 326-331.

DOI: 10.4028/www.scientific.net/amm.657.326

[7] V. Hauk, Structural and Residual Stress Analysis by Nondestructive Methods. Evaluation - Application – Assessment, Elsevier, (1997).

[8] G. Totten, M. Howes, T. Inoue, Handbook of Residual Stress and Deformation of Steel, ASM International, (2002).