Mechanical Properties Of Tempered Vacuum Glazing With Continuous Vacant Support Pillars

Aiming at the problem of uneven distribution of surface stress and deformation in tempered vacuum glazing (TVG) caused by vacant support pillars, which would easily cause glass surface damage and affect product safety and service life. This paper established the mechanical model of TVG and studied the mechanical properties of TVG with continuous vacant support pillars (CVSP). The maximum surface stress (?max) and deformation of 1.2 m by 0.8 m double evacuated glazing with 5 mm thick tempered glass panes with no more than 4 CVSP (0.3 mm height, 0.6 mm diameter and 50 mm spacing cylindrical stainless steel support pillars) in different areas and arrangement were obtained by ANSYS. The simulation results showed that the mechanical properties of TVG were worse with the increase of the number of CVSP. Under the condition of other factors being the same, the mechanical properties of TVG were the worst with CVSP in the middle, and were the best with CVSP arranged in linear. Based on the rule of simulation results, the license definition conditions of TVG with CVSP were formed. Meanwhile, some samples of TVG with CVSP were made, and the ?max was measured by the stress analyzer. The results showed that the relative error between the measured and simulated values of ?max was - 4.25%?3.66%, the simulation results were reliable, and the license definition conditions of TVG with CVSP were valid.