A New Method to Calculate Dynamic Stress Intensity Factor for V-Notch in a Bi-Material Plate

Abstract:

The stress singularity eigen-equation for V-notch in a bi-material plate is obtained. A new definition of dynamic stress intensity factor of a crack perpendicular to bi-material interface is put forward, and then is extended to any V-notch in bi-material plate. A formula of stress extrapolation method to calculate dynamic stress intensity factors of V-notch in bi-material plate is obtained. As an example, the three points bending sample with two materials is investigated.

• Periodical: Key Engineering Materials (Volumes 385-387)
• Pages: 217-220
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.385-387.217
• Online since: July 2008
• Authors: You Tang Li, Zhi Yuan Rui, Chang Feng Yan
• Keywords: Bi-Material, Dynamic Stress Intensity Factor (DSIF), Eigen-Equation, Finite Element Model (FEM), V-Notch

References

[1] Zhao B J, Lang F Y, Wei Q T. Engng Fract Mech 1988; 31: 923-929.

[2] Riemelmoser FO, Pippan R. Int J Fracture 2000; 103: 397-418.

[3] Zak AR and Williams ML. J Appl Mech, 1963; 30: 142.

[4] Li Y T, Yan C F and Huang H. Materials Science Forum Vols. 437-438 (2003) p.309.

[5] Li Y T, Ma P and Yan C F. Key Engineering Materials Vols. 324-325 (2006) p.503.

[6] Li Y T and Yan C F. Key Engineering Materials Vols. 306-308 (2006) p.7.

[7] Cook T S and Erdogan F. Int J Engin Science, 1972, 10: 677-697.

[8] Seweryn A. Int. J. Solids and Structures, 2002, 39: 4787-4804.

[9] Carpinteri A, Paggi M, Pugno N. Int J Solids and Structures. 2006; 43: 627-641.

[10] Li Y T and Song M. 8th int. conf. on fundamentals of fracture, 2008, Hong Kong , China.

[11] Li Y T, Yan C F and Kang Y P. Key Engineering Materials Vols. 306-308 (2006).