Abstract
High speed holographic microscopy is applied to take three successive microscopic photographs of rapidly bifurcating cracks in Araldite B. Crack tip positions are measured from the photographs, and the crack speeds before and after bifurcation are obtained by assuming that crack speeds are kept constant before and after the bifurcation respectively. Energy release rate is also obtained by measuring the crack opening displacement of the cracks on the photographs. The results say that there exists the discontinuity of crack speed at bifurcation, and the crack speed after bifurcation is slower than that before bifurcation. On the other hand, the energy release rate is continuous at the bifurcation, and increases gradually with crack extension.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings of the 1992 Annual Meeting of JSME/MMD
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
