Application of Digital Image Correlation Method to Strain Measurement of Mortar Specimen under Uniaxial Compression

Abstract

The applicability of the digital image correlation method (DICM) to the fields of civil engineering and architecture was investigated through analyzing the strain distribution of mortar specimen under uniaxial compression. As a result, it was proved that the strain of mortar specimen under uniaxial compression was well measured by digital image correlation method with the same precision as strain gauges. Digital image correlation method makes it possible to obtain the strain distribution on the surface of an object easily, and can be a powerful tool for the tracking of the local deformation of structures.