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- W143480187 abstract "We present and discuss our results on the experimental investigation of thermomechanical coupling effects which accompany the deformation and fracture of amorphous polymers. Two specific cases are addressed: dynamic crack initiation under stress wave loading, and cyclic response. Experimental results are reported for two “model” commercial polymers, “brittle” polymethylmethacrylate (PMMA) and “ductile” polycarbonate (PC). Dynamic mode I and mode II conditions have been investigated, during which the temperature in the vicinity of the crack-tip was monitored until the onset of crack propagation. For thermoelastic PMMA loaded in mode I, a marked tendency for crack-tip cooling was observed. Mode II loading in thermoplastic “ductile” PC caused the more familiar temperature rise, associated with shear band formation. Finally the hysteretic heating effect during cyclic loading of these two materials was investigated and numerically modeled. These results emphasize the importance of temperature changes which characterize the deformation and fracture of these amorphous polymers." @default.
- W143480187 created "2016-06-24" @default.
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- W143480187 date "2000-01-01" @default.
- W143480187 modified "2023-09-27" @default.
- W143480187 title "Thermomechanical couplings and fracture of amorphous polymers" @default.
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- W143480187 doi "https://doi.org/10.1016/s1566-1369(00)80032-1" @default.
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