High speed stereo-vision study of laminated glass fragmentation upon impact

The dierent stages of an impact on laminated glass are dicult to observe and quantify but are essential for numerical model validation. To assess the performance of this composite to low-velocity (∼10 m/s) high-mass impacts, dynamical impact tests, inspired by ball-drop tests, are performed, equipped with multiple high-speed cameras. From the set of images, a continuous 3D shape reconstruction of the deformed laminated glass over time is performed using Stereo-Digital Image Correlation (S-DIC). Signicant brightness and contrast variations captured by two cameras due to large rotations of glass fragments and large strain of the polymer interlayer between fragments render