Microscopic Strain Measurement of FRP with Kriging-DIC and Region Splitting Method

Abstract

In this research, the digital image correlation (DIC) with the Kriging method (Kriging-DIC) and the region splitting method are applied to the full field microscopic strain measurement of fiber reinforced plastics. At first, the validity and effectiveness of the proposed method is investigated by applying the DIC to a test image. Next, the proposed Kriging-DIC is applied to the microscopic strain measurement. As a target, problem microscopic strain measurement of a unidirectional FRP specimen including a few fibers under a tensile load along the transverse direction is considered, and applicability of the proposed approach is investigated. From the presented results, effectiveness of proposed method is discussed.