Stress Singularity of Thermal Stresses in Three-Dimensional Bonded Structures with an Interlayer

Abstract:

In the present paper, singular stress field at the vertex on the interface in three-dimensional bonded joints is analyzed using BEM and eigen analysis. The order of stress singularity is determined solving an eigen equation based on FEM formulation and the stress distribution is expressed using the result of the eigen-value analysis. A relationship between the thickness of interlayer and residual thermal stresses is presented. Then, a three-dimensional intensity of singularity is determined.

• Periodical: Key Engineering Materials (Volumes 385-387)
• Pages: 573-576
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.385-387.573
• Online since: July 2008
• Authors: Hideo Koguchi, Akira Taniguchi
• Keywords: BEM, Eigenanalysis, Residual Thermal Stress, Stress Singularity, Three-Dimensional Joint

References

[1] H. Koguchi, Trans. Japan Soc. Mech. Eng., Vol. 72 (2006), p. (2058).

[2] H. Koguchi and S. Nakamura, Trans. Japan Soc. Mech. Eng., Vol. 73 (2007), p.883.

[3] S.S. Pageau and Jr S.B. Bigger, Int. J. Numer. Methods Eng., Vol. 38 (1995), p.2225.

[12] [4] [6] [8] 102.

[4] Intensity of singularity K1θθ 3D.

[1] [2] 3 4 5 6.

[10] [2] 3 4 5 6 100.

[2] 3 H/t K1θθ 3D Model A K1θθ 3D Model B fitting Fig. 8 A relationship between D K 3 1θθand H/t.

[2] [3] [4] [5] [6] [7] [8] 912 Intensity of singularity L 1θθ.

[1] [2] 3 4 5 6.

[10] [2] 3 4 5 6 100.

[2] 3 H/t L1θθ Model A L1θθ Model B fitting Fig. 7 A relationship between L1θθ and H/t.