Strength of Annealed Glass
摘要
This Chapter discusses the strength of annealed glass, which is not an intrinsic material constant because it is highly dependent on the condition of the surfaces, in particular, as discussed in Sect. 5.2, surface flaws and scratches may reduce the strength of glass dramatically. Furthermore, glass typically becomes weaker over time as the number and size of flaws and cracks grow as a consequence of load duration and humidity and other factors, as described in Sect. 5.3. The most relevant property for practical applications is the glass (tensile) bending strength, which is covered in Sect. 5.4. Whereas, glass is typically stronger in compression, as addressed in Sect. 5.5.