Real-time quantification of damage in structural materials during mechanical testing.

ABSTRACT: A novel methodology is introduced for quantifying the severity of damage created during testing in composite components. The method uses digital image correlation combined with image processing techniques to monitor the rate at which the strain field changes during mechanical tests. The methodology is demonstrated using two distinct experimental datasets, a ceramic matrix composite specimen loaded in tension at high temperature and nine polymer matrix composite specimens containing fibre-waviness defects loaded in bending. The changes in the strain field owing to damage creation are shown to be a more effective indicator that the specimen has reached its proportional limit than using load-extension diagrams. The technique also introduces a new approach to using experimental data for creati

SUBMITTER: Christian WJR 

PROVIDER: S-EPMC7137972 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature