Abstract
The profile of a laser crack in a transparent dielectric, polymethyl methacrylate (in the free-generation procedure), has been studied by the equal-thickness interference band method. It has been established that zones of changed material, a zone of slow change of profile, and a zone of rapidly changing profile (center of the crack) exist in the cross section of the crack. Values of thickness of the crack are given. Suggestions are expressed as to a possible mechanism of laser damage.
This is a preview of subscription content, log in via an institution to check access.
Literature cited
R. P. Kambour, J. Polym. Sci.,A3, No. 5, 1713 (1965).
M. I. Bessonov and E. V. Kuvshinskii, Plast., No. 5, 57 (1961).
O. E. Marin, N. F. Pilipetskii, and V. A. Upadyshev, Mekhan. Polim., No. 3, 475 (1973).
O. E. Marin, N. F. Pilipetskii, and V. A. Upadyshev, Mekhan. Polim., No. 1, 82 (1973).
Additional information
Institute of Problems in Mechanics, Academy of Sciences of the USSR, Moscow. Translated from Mekhanika Polimerov, No. 5, pp. 921–923, September–October, 1973.
Rights and permissions
About this article
Cite this article
Vuntsevich, I.L., Marin, O.E., Pilipetskii, N.F. et al. Profile of a laser crack in polymethyl methacrylate. Polymer Mechanics 9, 810–812 (1973). https://doi.org/10.1007/BF00856282
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00856282