Abstract
The problem of the initial stage of crack formation in PMMA subjected to laser action is investigated. It is shown that the cracks develop from gas-filled cavities (centers). These centers have been experimentally investigated, and the center-crack transition carefully studied.
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Institute of Problems of Mechanics, Academy of Sciences of the USSR, Moscow. Translated from Mekhanika Polimerov, No. 1, pp. 82–89, January–February, 1973.
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Marin, O.E., Pilipetskii, N.F. & Upadyshev, V.A. The origin of embryonic laser cracks. Polymer Mechanics 9, 68–75 (1973). https://doi.org/10.1007/BF00856012
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DOI: https://doi.org/10.1007/BF00856012