Crack Opening Displacement (COD) gauges

COD - Instron

Instron® Crack Opening Displacement transducers are designed specifically to perform standard ASTM and ISO fracture mechanics tests (both cyclic and static), covering all common specimen geometries (CT, SEB, Centre Crack, Arc Shaped). Each model offers class leading linearity, whilst being rugged enough to withstand the high energy release common in many of these applications and can be used at both elevated and sub-ambient temperatures. These gauges comply with requirements laid down in ASTM E399-09.