Assessment of UMTS and Averaged SED Fracture Criteria for U-Notched Specimens

Abstract:

A set of mixed-mode I/II fracture tests was carried out on a polyurethane material. Using a single edge notched bend (SENB) type specimen, containing straight and respectively inclined U notches, the full range from pure mode I to dominant mode II was achieved. Two different fracture criteria were employed for the prediction of the fracture conditions: the UMTS criterion and the averaged SED criterion. Using these two criteria a set of curves were derived in terms of the fracture load vs. notch radius. The agreement between the experimental results and those predicted based on these two criteria is discussed finally.

• Periodical: Key Engineering Materials (Volumes 577-578)
• Pages: 113-116
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.577-578.113
• Online since: September 2013
• Authors: Hannelore Filipescu, Cristiana Caplescu, Niculai Pasca
• Keywords: Averaged SED Criteria, Notch Fracture, Polyurethane (PU), UMTS Criteria

References

[1] R. Negru, L. Marsavina, H. Filipescu and N. Pasca: Int. J. Fracture vol. 181 (2013), p.155.

[2] M.R. Ayatollahi and A.R. Torabi: Eng. Fract. Mech. vol. 76 (2009), p.1183.

[3] F.J. Gómez, M. Elices, F. Berto and P. Lazzarin: Int. J. Fracture vol. 145 (2007), p.29.

[4] H.E. Filipescu: Investigation of mixed mode fracture on polyurethane materials, Ph.D. thesis, Timisoara, Romania, 2012 (in Romanian).

[5] F. Berto, P. Lazzarin, F.J. Gómez and M. Elices: Int. J. Fracture vol.148 (2007), p.415.

[6] P. Lazzarin and S. Filippi: Int. J. Solids Struct. vol 43 (2006), p.2461.

[7] S. Filippi, P. Lazzarin and R. Tovo: Int. J. Solids Struct. vol 39 (2002), p.4543.

[8] P. Lazzarin and R. Zambardi: Int. J. Fracture vol. 112 (2001), p.275.

[9] P. Lazzarin and F. Berto: Int. J. Fracture vol 135 (2005), p.161.

[10] Z. Yosibash, A. Bussiba and I. Gilad: Int. J. Fracture vol. 125 (2004), p.307.

[11] A. Seweryn: Eng. Fract. Mech. vol. 47 (1994), p.673.