Detection and Imaging of Damages and Defects in Fibre-Reinforced Composites by Magnetic Resonance Technique

摘要: Defectively manufactured and deliberately damaged composite laminates fabricated with different continuous reinforcing fibres (respectively, carbon glass) polymer matrices thermoset thermoplastic) were inspected in magnetic resonance imaging equipment. Two pulse sequences evaluated during non-destructive examination conducted saline solution-immersed samples to simulate load-bearing orthopaedic implants permanently contact biofluids. The orientation, positioning, shape, especially the size of translaminar delamination fractures determined according stringent structural assessment criteria. spatial distribution, contours water-filled voids sufficiently delineated infer amount absorbed water if thinner image slices than this study used. surface texture specimens featuring roughness, waviness, indentation, crushing, scratches was outlined, fortuitous artefacts not impairing quality interpretation. Low electromagnetic shielding glass delivered highest, while electrically conductive produced poorest images, particularly when blended thermoplastic polymer, though reliable interpretation still attainable.