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Proceedings Paper

Visualization of low-velocity dynamic indentation cracking of an epoxy and polymethylmethacrylate
Author(s): R. Majzoub; Mohammad Munawar Chaudhri
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Paper Abstract

A high-speed photographic investigation of the initiation and propagation of radial and median cracks in transparent samples of a brittle epoxy and polymethylmethacrylate is described. The cracks were generated by low-velocity impact with hard spherical and conical indenters, and it is shown that radial cracks always initiate on the impacted surface at the circle of contact. These radial cracks then grow to form median cracks, encircling the deformed zone around the indentation. High-speed photography has also been used to elucidate the fracture processes involved in making stone tools.

Paper Details

Date Published: 1 August 2003
PDF: 9 pages
Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); doi: 10.1117/12.516948
Show Author Affiliations
R. Majzoub, Univ. of Cambridge (United Kingdom)
Mohammad Munawar Chaudhri, Univ. of Cambridge (United Kingdom)


Published in SPIE Proceedings Vol. 4948:
25th International Congress on High-Speed Photography and Photonics
Claude Cavailler; Graham P. Haddleton; Manfred Hugenschmidt, Editor(s)

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