Thermo-Mechanical Stress near Apex of a Bi-Material Wedge by a Novel Finite Element Analysis

Abstract:

A super wedge tip element for application to a bi-material wedge is develop utilizing the thermo-mechanical stress and displacement field solutions in which the singular parts are numerical solutions. Singular stresses near apex of an arbitrary bi-material wedge under mechanical and thermal loading can be obtained from the coupling between the super wedge tip element and conventional finite elements. The validity of this novel finite element method is established through existing asymptotic solutions and conventional detailed finite element analysis.

• Periodical: Key Engineering Materials (Volumes 525-526)
• Pages: 93-96
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.525-526.93
• Online since: November 2012
• Authors: Xue Cheng Ping, Lin Leng, Si Hai Wu
• Keywords: Bi-Material Wedge, Stress Intensity Factor (SIF), Super Singular Element, Thermo-Mechanical Stress

References

[1] S.S. Pageau, Jr. S.B. Biggers: AIAA J. Vol. 34(1996), p.1927-(1933).

[2] S.S. Pageau, Jr. S.B. Biggers: Int. J. Num. Meth. Eng. (1997), 40, pp.2693-2713.

[3] K.N. Lin, J.W. Mar: Int. Fract. Vol. 12(1976), pp.521-531.

[4] Chen MC, Sze KY: Eng Fract Mech Vol. 13(2001), pp.1463-1476.

[5] Ping XC, Chen MC: Eng Fract Mech Vol. 75(13)(2008): 3819–3838.

[6] A. Barut, I. Guven, E. Madenci: Int. J. Solids & Struct. Vol. 38 (2001), pp.9077-9109.

[7] K.Y. Sze, H.T. Wang: Finite Elem. Anal. Des. Vol. 35(2) (2000), pp.97-118.

[8] D. Munz, Y.Y. Yang: J. Appl. Mech. (1992), pp.857-881.