Finite element simulation study on air pressure balance hole of thin-chamber insulating glazing
HU Yinglong
YAN Huajian
SUN Shibing
LI Wenhao
JIN Xiaodong
ZHAO Jingwei
WANG Wanfu
Abstract：This study proposes the implementation of air pressure balance hole in the intermediate thin glass layer to optimize its mechanical behavior under wind loads.Finite element analysis was employed to investigate the influence patterns of these pres-sure balance holes on the displacement,stress,and cavity thickness variations in thin-chamber insulating glazing(TC-IG).The re-sults indicate that 1 mm diameter pressure balance holes effectively reduce both the maximum displacement of the middle glass and the principal stress at glass center under wind loads,with the reduction magnitude increasing proportionally to wind load in-tensity.As the thickness of the middle glass decreases,the displacement reduction initially diminishes then increases,while the principal stress reduction shows gradual enhancement.Thinning of both outer and inner glass leads to progressive increases in dis-placement and principal stress reductions of the intermediate layer.Notably,under high wind load conditions of 5 kPa,contact phe-nomena occur between outer and middle glass when the outer and inner glass are relatively thin compared to the middle glass,re-sulting in stress concentration at the contact position near the panel center.
Keywords：insulating glazingthin-chamberwind loadair pressure balance hole
Publication Date：2026-02-25
Online Publishing Date：2026-03-25(First online date of this platform, not the publication date of the document)
Pages：8( 118-125 )