A Two-Stage Detection Method for Exterior Wall Spalling and Cracking under Computer Vision

In order to study the anti-explosion performance of frame-supported SGP laminated glass, the dynamic response characteristics and failure mode of frame-supported SGP laminated glass under explosion were studied by field explosion test and dynamic nonlinear finite element analysis. The time history curve of explosion overpressure, failure mode of panel and dynamic displacement field were obtained through field explosion test and three-dimensional DIC analysis. The experimental results show that the crack distribution of frame-supported SGP laminated glass is mainly manifested as diagonal X-shaped crack and annular crack near the frame area under the action of explosion. The results of finite element analysis show that when td and panel natural vibration period T0 are of the same order of magnitude (0.1