Year: 1984
Type: report
Abstract: Although ring-on-ring test results have been used in the past to obtain information on the strength of glass, no methodology has so far been developed in the literature explicitly relating such results to the load capacity of cladding glass.The main purpose of this report is to propose such a method- ology.The proposed methodology makes use of recent advances in the modeling of the fracture mechanics behavior of glass and the calculation of stresses in plates exhibiting geometric nonlinearity .Evidence is presented which strongly suggests that the probability distribution of the load capacity of cladding glass panels whose failure is due to surface flaws can be estimated reliably on the basis of results of ring-on-ring tests used in conjunction with (a) numerical methods for the analysis of stresses in plates, and (b) information on the elastic and fracture mechanics behavior of glass currently available or that can be obtained routinely.Two interesting findings are noted.First, owing to the way in which results of ring-on-ring tests are utilized, the relatively large variabilities typical of fracture mechanics parameters, as well as the uncertainties with respect to the shapes of surface flaws, have a minor effect on the estimation of load capacities.Second, two-parameter Weibull distributions, previously used in the literature to model the strength of glass and the load capacity of cladding panels, are not consistent with experimental results.On the other hand, three-parameter Weibull distributions model the observed glass behavior credibly.
DOI: 10.6028/nbs.bss.162
Authors: Emil Simiu, Dorothy A Reed, Charles W Yancey, Jonathan W martin, Erik M Hendrickson, Armando C Gonzalez, Masayoshi Koike, James A Lechner, Martin E Batts
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Funder: National Science Foundation
OpenAlex ID: W592006541