Residual Stress Evaluation of Thin Film Using Strip Bending Test


Article Preview

In this study, we use the strip-bending test to measure the residual stress of a thin film structure. The principle of the strip bending test and the test procedures are described and the analysis of the strip deformation is presented. The explicit formula for estimating the residual stress is given, which requires the initial stress as an input. As an example, the E-beam evaporated Au thin film is chosen, and the residual stress is measured by the present method. The Au thin film structure has a tensile or compressive residual stress depending on the film thickness. The tensile and the compressive residual stresses of Au thin film are successfully measured by the present method.



Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi




J. H. Kim et al., "Residual Stress Evaluation of Thin Film Using Strip Bending Test", Key Engineering Materials, Vols. 321-323, pp. 121-124, 2006

Online since:

October 2006




[1] W. Nix, Metallurgical Transaction A20 (1989), pp.2217-2245.

[2] A.S. Kobayashi: Handbook on experimental mechanics (Prentice-Hall, Inc., USA 1987).

[3] J. -H. Kim, H. -J. Lee, S. -W. Han, C. -W. Baek, J. -M. Kim, Y. -K., Kim, KSME Spring (2004).

[4] J. -S. Kim, H. -J. Lee, J. -H. Kim, B. -I. Choi, S. -H. Choa, C. -S. Lee, KSME Spring (2005).

[5] H. D. Espinosa, B. C. Prorok and M. Fischer, J. of Mech. Phys. Solids Vol. 51 (2003), pp.47-67.

[6] C. -W. Baek, J. -M. Kim, Y. -K. Kim, J. -H. Kim, H. -J. Lee, S. -W. Han, Sensor. Mater. Vol. 17 (2005), pp.277-288.

[7] S.P. Timoshenko, S. Woinowsky-Krieger, Theory of Plates and Shells (McGraw-Hill, New York, 1959).

[8] Z. Suo, J.W. Hutchinson, Int. J. Fracture Vol. 43 (1990), pp.1-18.

[9] S.T. Choi, J.Y. Song, J.H. Kim, S. Lee, Y.Y. Earmme, Key Eng. Mater. Vol. 306-308 (2006), pp.1337-1342.