engleski

Application of different imaging techniques for the characterization of damage in fiber reinforced polymer

The heterogeneous and anisotropic nature of fiber reinforced polymers induces the initiation of various damage mechanisms at different scales. Even though full-field surface measurements may successfully track damage development, such approaches do not provide insights into the material bulk. The present work aims at comparing surface and bulk full-field measurements (via Digital Image/Volume Correlation) for a comprehensive analysis of polymer composite damage. Bulk measurements revealed that damage initiated at the microscale, thus contributing to surface localization phenomena. Full-field surface measurements could not capture the local strain states that the constituents were subjected to, which led to final fracture.

Digital Image Correlation (DIC) ; Digital Volume Correlation (DVC) ; Full-field measurement ; Gray level residuals ; Polymer matrix composite

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