A Computational Method of Residual Stress Calculation for Incremental Hole-Drilling Method Utilized Composite Materials

Abstract:

In this work, a computational method dedicates to realize the residual stress calculation for multi depths with incremental hole-drilling method. An optimized finite element model is determined with proper size compared to the experiment. By invaliding the mechanical properties of the drilled section in the model, the step-by-step drilling procedure is simulated for incremental hole-drilling method. As the practical application of such computational method, a bulk metallic glass (BMG) sample being mechanically treated by severe plastic process is used to demonstrate the distribution of residual stresses along thickness direction.

• Periodical: Materials Science Forum (Volume 813)
• Pages: 94-101
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.813.94
• Online since: March 2015
• Authors: Hao Jiang, Li Min Zhou, Jian Lu
• Keywords: Finite Element Method, Hole Drilling Method, Layup Structure, Mechanical Surface Treatment, Residual Stress

References

[1] J. Mathar, Determination of residual stress by measuring the deformation around drilled holes. Transactions of the American Society of Mechanical Engineers, 56 (1934), 249-254.

DOI: 10.1115/1.4019712

[2] D. V. Nelson, Residual Stress Determination by Hole Drilling Combined with Optical Methods, Experimental Mechanics, 50 (2010) 145-158.

DOI: 10.1007/s11340-009-9329-3

[3] G.S. Schajer, G. Roy, M.T. Flaman, J. Lu, Hole Drilling and Ring Core Methods, In: Lu J (ed) Handbook of measurement of residual stresses. Society for Experimental Mechanics, (1996), 5–35.

[4] G.S. Schajer, Application of Finite Element Calculations to Residual Stress Measurements, Journal of Engineering Materials and Technology, 103 (1981), 157-163.

DOI: 10.1115/1.3224988

[5] G.S. Schajer, L. Yang, Residual-stress Measurement in Orthotropic Materials Using the Hole-drilling Method, Experimental Mechanics, 34 (1994), 324-333.

DOI: 10.1007/bf02325147

[6] ASTM E 837-08, Standard Test Method for Determining Residual Stresses by the Hole drilling Strain-Gauge Method, (2001).

[7] Timoshenko, Theory of Elasticity, Chapter 4: 68-71.

[8] Z. Wu, J. Lu, Han B, Study of Residual Stress Distribution by a Combined Method of Moiré Interferometry and Incremental Hole Drilling, Part I: Theory, Journal of Applied Mechanics, 65 (1998a), 837-843.

DOI: 10.1115/1.2791919

[9] K. Lu and J. Lu, Nanostructured Surface Layer on Metallic Materials Induced by Surface Mechanical Attrition Treatment, Mater. Sci. Eng. (2004), A, 375, 38–45.

DOI: 10.1016/j.msea.2003.10.261