AGC Flat Glass Czech (Czechia)

This study investigates the effect of moisture content on the residual bending strength after bending fatigue of T300/914 composite laminates immersed in water for 7 days and 14 days. Displacement-controlled three-point bending fatigue tests were conducted on specimens. After 40,000 cycles the fatigue test was stopped and the residual properties were measured on the tested specimens. Reduction in material strength was found to depend on the level of moisture content. Experimental results reveal that the moisture content in the laminates increased with immersion time. Compared to the unaged specimens, the residual bending strength after bending fatigue decreased by 6.67% and 37.04%, respectively. The residual bending strength and strength retention decreased with increased immersion time.

The results of a joint project by Glaverbel Czech JSC and the Department of Machines and Robots for Glass Production at Liberec University (Czech Republic) are presented. The corrugation test is objectivized for making more accurate quality assessments of float glass directly on the production line. The processes involved in the production of large-size multilayer glass as well as the reasons for and the sources of the cracking and breakup of glass during autoclaving are analyzed. Computer simulation of the deformational characteristics of the racks in the production of large-size multilayer glass has made it possible to perform calculations to optimize and maximize the strength of the rack design.