PROPER LOCUS FOR MOUNTING STRAIN GAGE AROUND COLD WORKED HOLE FOR RESIDUAL STRESS DETERMINATION

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POOLADI BORJ EHSAN; FARHANGDOOST KHALIL

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:1 Page(s): 332-338

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Information Journal Paper

Title

PROPER LOCUS FOR MOUNTING STRAIN GAGE AROUND COLD WORKED HOLE FOR RESIDUAL STRESS DETERMINATION

Author(s)

POOLADI BORJ EHSAN | FARHANGDOOST KHALIL | Issue Writer Certificate

Keywords

RESIDUAL STRESSQ2

STRAIN GAGEQ2

COLD WORKINGQ2

COLD WORKED HOLEQ2

Abstract

Cold working a hole decreases the tendency of fatigue crack near the hole to commence or grow. It is due to the creation of some compressive tangential RESIDUAL STRESSes around the hole. Determination of the mentioned RESIDUAL STRESSes with a non-destructive, simple and nonexpensive method is the key step in the design process of holed components. In this article, RESIDUAL STRESSes have been determined by mounting some STRAIN GAGEs around the hole and, in fact, surface strains during COLD WORKING process have been introduced as a feature for RESIDUAL STRESS field. Delineating the numbers of needed STRAIN GAGEs and also proper place for mounting them around the COLD WORKED HOLE are the main objectives of this research. Results have good agreement with test result of COLD WORKING on specimens made of Al2024. According to the results, mounting two STRAIN GAGEs at the same radius on the opposite side of hole edge, in which one is in radial and the other in tangential direction is necessary for determining the RESIDUAL STRESS field. Also, STRAIN GAGEs should be mounted in elastic zone. Mounting the gages in plastic zone led to errors and unreliable results.

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APA: Copy

POOLADI BORJ, EHSAN, & FARHANGDOOST, KHALIL. (2015). PROPER LOCUS FOR MOUNTING STRAIN GAGE AROUND COLD WORKED HOLE FOR RESIDUAL STRESS DETERMINATION. MODARES MECHANICAL ENGINEERING, 15(1), 332-338. SID. https://sid.ir/paper/179292/en

Vancouver: Copy

POOLADI BORJ EHSAN, FARHANGDOOST KHALIL. PROPER LOCUS FOR MOUNTING STRAIN GAGE AROUND COLD WORKED HOLE FOR RESIDUAL STRESS DETERMINATION. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(1):332-338. Available from: https://sid.ir/paper/179292/en

IEEE: Copy

EHSAN POOLADI BORJ, and KHALIL FARHANGDOOST, “PROPER LOCUS FOR MOUNTING STRAIN GAGE AROUND COLD WORKED HOLE FOR RESIDUAL STRESS DETERMINATION,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 1, pp. 332–338, 2015, [Online]. Available: https://sid.ir/paper/179292/en

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