Experimental Study on Cold Bending and Temperature Change of Toughened Glass

Abstract

In order to study the temperature strain of the insulating tempered glass under certain cold bending test, cold bending test and temperature test were carried out on the glass plate. Taking the self-made cold-formed steel frame as the tool and the hollow laminated tempered glass as the object, the cold bending test of the glass was carried out. The results show that the stress of each measuring point increases linearly with the increase of cold bending displacement, and the maximum principal stress appears at the end of the loader near the loading point of the outer sheet glass. The temperature changes test of the glass shows that the stress of each measuring point is linear with the increase in temperature difference. The results show that the maximum principal stress appears near the constrained angle steel on the displacement side of the upper edge of the outer sheet glass; the stress changes greatly during the short-term cooling test, and the tensile and compressive stresses transform each other. The internal stress produced by cold bending is coupled with the maximum principal stress produced by temperature load, and the maximum principal stress appears at the lower edge constraint of the loading displacement side.