Digital volume correlation (DVC) of volumetric images acquired by in-situ X-ray micro-computed tomography (µCT) provides an effective technique to measure the internal deformations of a particle composite material under loading. In this paper, a particle composite is prepared by embedding idoxuridine (IDOX) crystals (size range 75-150 µm) in a polyurethane binder, Estane. An IDOX/Estaine composite cylinder is compressed under unconfined condition while volumetric images are acquired by a µCT. Incremental digital volume correlation is conducted to determine the internal deformations. The grain/binder interface delamination, crack initiation and propagation, and coalescence of larger defects are captured. The experiments provide detailed internal structural evolution along with internal deformations. The results are anticipated to be useful to validate simulations.
2025-04-09 09:00:00
