Mirror-assisted multi-view high-speed digital image correlation for dual-surface dynamic deformation measurement

Based on the recently proposed mirror-assisted multi-view digital image correlation (MV-DIC), we establish a cost-effective and easy-to-implement high-speed (MVHS-DIC) method explore its applications for dual-surface full-field dynamic deformation measurement. In contrast to general requirement of four expensive cameras field measurement, established MVHS-DIC halves cost by involving only two synchronized planar mirrors. The can dynamically measure front rear surfaces sheet sample simultaneously through reflection results are then transformed into same coordinate system, leading required 3D dynamical fields. effectiveness accuracy system validated modal tests cantilever aluminum sheet. vibration measurement drum transient smartphone in drop-collision process further prove practicability. Benefiting from attractive advantages cost-efficient way, is expected encourage more comprehensive mechanical behavior characterization regular-sized materials structures impact engineering