There is increased demand for ever thinner glass sheets, due primarily for the desire for lightweight communication devices. There is also considerable research in the area of flexible substrates for various display technologies where applied bend diameters as small as 2 cm have been discussed. “Flexibility” infers that purposely stressing the glass in bending will be a function of the glass during manufacturing or in-service environments. Consequently, glass for, say, display technologies, will be expected to survive significant bend induced tensile stressing during processing, handling and in-service use. It is well-known that glass has little resistance to failure from flaws. Failure can be immediate or in a delayed fashion from the phenomenon of fatigue. The purpose of this work is to demonstrate that by using the existing framework of fracture and fatigue mechanics one can anticipate mechanical performance required for the glass to survive under these conditions.