Residual stress within metal components represents, in the majority of the cases, a source of a large amount of scrap and losses for the metalworking industry. Although there are methods of measuring residual stresses, the complexity of geometric shapes in several products makes it a difficult task. Current research work developed a new methodology for measuring residual stresses in areas of complex geometry, as is the case of engine blocks in the automotive industry. The strain gauge measurement technique (SMT) is used here to validate the proposed methodology since, for many years, the SMT has gained high confidence in the automotive industry for the case of measurements of residual stress in metallic products. The new methodology involves: firstly, a pair of indentation marks performed at the section of study and secondly, a cutting process which is carried out to relieve stress in the section. Replica samples were taken from both samples in every experiment to measure the distance between indentation marks. Difference between both measurements (the sample before and after the stress relief) gives us a measure of the change in deformation which is related with the residual stress by Hooke’s law (σ = F/A = Eε = E[∆ε/(ε0)]), where ε0 is the initial spacing and Δε is the change in the spacing between indentation marks. The implementation of the replica sample allows the transfer of the distance between indentation marks by means of portable samples, which can be carried to the laboratory where an optical microscope is used together with an image analyzer to obtain accurate measurements in laboratories with a resolution of ± 2 μm. Residual stress values by the new technique were then calculated to compare with those values obtained by the strain gauge technique. Findings confirm the effectiveness of the current methodology for measuring residual stresses in complex areas and suggested a great opportunity in which residual stress measurements have not been able to obtain using any other technique.
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Vasileiou AN, Smith MC, Francis JA, Francis DW, Rathod DW, Balakrishnan J, Irvine NM (2019) Residual stress in arc and electron-beam welds in 130 mm thick SA508 steel: Part 2 –measurements. Int J Press Vessel Pip 172:379–390. https://doi.org/10.1016/j.ijpvp.2019.03.035
Mungi MP, Rasane SD, Dixit PM (2003) Residual stresses in cold axisymmetric forging. J Mater Process Technol 142:256–266
Puymbroeck EV, Staen GV, Iqbal N, Backer DD (2019) Residual weld stresses in stiffener-to-deck plate weld of an orthotropic steel deck. J Constr Steel Res 159:534–547. https://doi.org/10.1016/j.jcsr.2019.05.015
Coules HE, Horne GCM, Abburi Venkata K, Pirling T (2018) The effects of residual stress on elastic plastic fracture propagation and stability. Mater Des 143:131–140. https://doi.org/10.1016/j.matdes.2018.01.064
McAndrew AR, Colegrove PA, Flipo CBBCD, AchilleasVairis (2018) A literature review of Ti-6Al-4V linear friction welding. Prog Mater Sci 92:225–257. https://doi.org/10.1016/j.pmatsci.2017.10.003
Kwak SY, Hwang HY (2018) Effect of heat treatment residual stress on stress behavior of constant stress beam. J Comput Des Eng 5(1):137–143. https://doi.org/10.1016/j.jcde.2017.07.001
ASTM (2001) E837–01, Standard test method for determining residual stresses by the hole-drilling strain-gage method. ASTM International, West Conshohocken, www.astm.org. https://doi.org/10.1520/E0837-01
Lombardi A, Sediako D, Machin A, Ravindran C, MacKay R (2017) Effect of solution heat treatment on residual stress in Al alloy engine blocks using neutron diffraction. Mater Sci Eng A 697:238–247. https://doi.org/10.1016/j.msea.2017.05.026
Lombardia A, D'Elia F, Ravindran C, MacKay R (2014) Replication of engine block cylinder bridge microstructure and mechanical properties with lab scale 319 Al alloy billet castings. Mater Charact 87:125–137. https://doi.org/10.1016/j.matchar.2013.11.006
Wyatt JE, Berry JT, Williams AR (2007) Residual stresses in aluminum castings. J Mater Process Technol 191(1–3):170–173. https://doi.org/10.1016/j.jmatprotec.2007.03.018
Almutairi A, Wu D, Guo B, Roskilly AP, Ottley C (2017) Characterization of lubricant degeneration and component deterioration on diesel engine fueling with straight plant oil. Energy Procedia 105:636–641. https://doi.org/10.1016/j.egypro.2017.03.368
Li Z, Limodin N, Tandjaoui A, Quaegebeur P, Witz J-F, Balloy D (2016) Damage investigation in A319 aluminum alloy by digital image correlation during in-situ tensile tests. Procedia Struct Integr 2:3415–3422. https://doi.org/10.1016/j.prostr.2016.06.426
Tocci M, Pola A, Montesano L, Merlin M, Garagnani GL, La Vecchia GM (2017) Tensile behavior and impact toughness of an AlSi3MgCr alloy. Procedia Struct Integr 3:517–525. https://doi.org/10.1016/j.prostr.2017.04.053
Standard practice for production and evaluation of field metallographic replicas. E 512–87, Annual Book of ASTM Standards, American Society for Testing and Materials
Mueller MG, Fornabaio M, Žagar G, Mortensen A (2016) Microscopic strength of silicon particles in an aluminium–silicon alloy. Acta Mater 105(15):165–175. https://doi.org/10.1016/j.actamat.2015.12.006
Mueller MG, Žagar G, Mortensen A (2018) In-situ strength of individual silicon particles within an aluminium casting alloy. Acta Mater 143:67–76. https://doi.org/10.1016/j.actamat.2017.09.058
The authors of this work recognize the support of the Research and Development (R&D) department from Nemak Company, to the Center for Research and Innovation in Aeronautical Engineering (CIIIA) of the Autonomous University of Nuevo Leon, and to the CONACyT for the economical support in the development of this research.
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Aguilar-Navarro, J.A., González-López, J.R., Hernández-Sandoval, J. et al. Innovative methodology for measuring residual stress in engine blocks. Int J Adv Manuf Technol 106, 3649–3658 (2020). https://doi.org/10.1007/s00170-019-04852-2
- Residual stress
- Metallic products
- Automotive industry
- Residual stress measurement