论文信息 - Prediction of Fracture Energy and Flaw Size in Glasses from Measurements of Mirror Size

Prediction of Fracture Energy and Flaw Size in Glasses from Measurements of Mirror Size

Fracture strengths (δ), fracture-initiating flaw sizes, and mirror radii (r), as outlined by either the mist or the hackle boundary, were measured for silicate and nonsilicate glasses (e.g. As2S3 and glassy carbon). For all glasses, δr1/2= constant. The average ratios of inner and outer mirror radii to flaw size were ∼10:1 and ∼13:1, respectively, for most of the glasses. Critical fracture energies calculated from either flaw or mirror size agreed very well with those obtained by double-cantilever-beam measurements.

[1] Errol B. Shand. Experimental study of Fractue of Glass: II, Experimental Data , 1954 .

[2] D. G. Holloway,et al. On the shape and size of the fracture zones on glass fracture surfaces , 1966 .

[3] E. N. Dulaney,et al. Velocity Behavior of a Growing Crack , 1960 .

[4] E. B. Shand,et al. Breaking Stress of Glass Determined from Dimensions of Fracture Mirrors , 1959 .

[5] J. E. Field,et al. Brittle Fracture: its Study and Application , 1971 .

[6] W. C. Levengood. Effect of Origin Flaw Characteristics on Glass Strength , 1958 .

[7] K. McKinney. Relation of Fracture Mechanics to Mirror Surfaces of Fractured Brittle Materials , 1973 .

[8] Sheldon M. Wiederhorn,et al. Fracture Surface Energy of Glass , 1969 .

[9] P. W. Mast,et al. Crack propagation studies in brittle materials , 1973 .

[10] D. Hasselman,et al. Relation of Flaw Size to Mirror in the Fracture of Glass , 1971 .