In situ 3D characterization of fatigue cracks displacement fields

Frattura ed Integrità Strutturale

关键词: Cast iron;    Digital volume correlation;    Crack tip displacement;    In situ;   

DOI  :  10.3221/IGF-ESIS.25.08

来源: DOAJ

【 摘 要 】

The three dimensional growth of fatigue cracks in samples of nodular graphite cast iron is characterized using laboratory X-ray computed tomography. The cracks grow from laser machined artificial defects, their development is monitored in situ using laboratory X-raycomputed tomography (lab. CT) and Digital Volume Correlation (DVC). The combination of both techniques gives access to the 3D displacement field at the tip of the crack (mainly mode I opening).

【 授权许可】

Unknown