Abstract

A new bond strength test method proposed by Lin et al. (Lin CP, Douglas WH, Fields RP. J Dent Res 1992;71(IADR Abstracts #74):524) is presented to overcome the shortcomings of traditional bond strength measurements, which are based on nominal stress concepts. This paper is a theoretical analysis based on a linear elastic fracture mechanics approach. The analytical relationship between the elastic energy release rate G Ic and the critical load is derived approximately as a function of specimen shape and material properties.

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