RADIAL STRAIN RELAXATION IN A COLD WORKED ALUMINIUM ALLOY 2024·T35I PLATE SPECIMEN

Authors

  • Prithvi Raj Arora Department of Aerospace Engineering University Putra Malaysia Serdang, Malaysia
  • Ram Kumar Krishnasamy Department of Aerospace Engineering University Putra Malaysia Serdang, Malaysia
  • Jeffrey Tan Meng Lee Department of Aerospace Engineering University Putra Malaysia Serdang, Malaysia

Keywords:

Keywords

Abstract

Aluminium alloy 2024 T351 is used fo r carrying out cold work experiment. Altogether 16 strain
gauges have been mounted in the radial direction to measure the radial strain distribution using
HP data acquisition system and Visual Engineering Environment (VEE) software. The strain
distribution was recorded under different conditions of cold working process. The value of
elastic-plastic boundary experimentally measured matches wdl with the existing theories of
Nadai, Chang, and Rich and lmpellizeri . The experimental residual strain distribution results
compares very well with the Finite Element Method (FEM, results panrticularly for a case of full
mandrel removed condition. The recommendation is made to use the strain relaxation data for a case where mandrel need not be removed after cold working for accessing the residual strain
distribution in the specimen.

References

Chang, J.B., 1977, "Prediction of fatigue crack growth at cold worked fastener holes", Journal of Aircraft, Vol. 14. No.9, pp 903-908.

Pooisuk, S. and Sharpe, Jr, W.N., 1978, "Measurement of the elastic-plastic boundary around cold worked fastener hole", Journal of Applied Mechanics Vol. 45. pp 515·520.

Dally, James W. and Riley, William F., 1965, "Experimental stress analysis", McGraw Hill Book Company, N.Y.

Hoffman, O. and Sachs, G., 1953, "Introduction to the theory of plasticity for engineers ", McGraw Hill New York, pp 80-95 .

Nadai, A., 1943, "Theory of the expanding ofboiler and condenser tube joints through rolling", Transaction of the ASME, Vol. 65, pp 865-880.

Rich, D.L. and Impell izeri, L.F., 1977, "Fatigue analysis of cold worked and interference fit fastener holes", Cyclic stress strain and plastic deformation aspects of fatigue crack growth. STP 637, American Society of Testing Materials, Philadelphia, pp 154-175 .

LUSAS (London University Stress Analys is System), 2001 , FEA Ltd Forge House, 66 High Street. Kingston upon Thames. Surrey, KTI IHn, United Kingdom.

Arora, P. R., Jeffrey, Tan M.L, Christian, B.. and Waqar, A , 2nd-3rd October 2001, "Finite element analysis of residual stresses for cold working in a 2024-T35/ aluminium alloy plate", Proceedings UPM Engineering Research Seminar, Faculty of Engineering , University Putra Malaysia, pp 118-13 3.

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Published

2018-05-07

How to Cite

Arora, P. R., Krishnasamy, R. K., & Tan Meng Lee, J. (2018). RADIAL STRAIN RELAXATION IN A COLD WORKED ALUMINIUM ALLOY 2024·T35I PLATE SPECIMEN. Jurnal Mekanikal, 14(2). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/237

Issue

Issue 14: December 2002

Section

Mechanical

License

Copyright of articles that appear in Jurnal Mekanikal belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions or any other reproductions of similar nature.