Mechanical response of PMMA under compression stress at 300 K after exposure to60CO gamma rays
In this work, the variation with the irradiation dose of the yield stress in polymethylmethacrylate exposed to y radiation was studied at different strain rates. Doses of 0, 50, 100, 150 and 200 kGy were employed. Compressive tests were made with strain rates between 1.4×10-3 s-1 and 3.5×10-2 s-1. T...
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| Autores principales: | , , , , , |
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| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03650375_v84_n2_p105_Gonzalez |
| Aporte de: |
| Sumario: | In this work, the variation with the irradiation dose of the yield stress in polymethylmethacrylate exposed to y radiation was studied at different strain rates. Doses of 0, 50, 100, 150 and 200 kGy were employed. Compressive tests were made with strain rates between 1.4×10-3 s-1 and 3.5×10-2 s-1. The dependence of the compressive yield stress with the irradiation dose was considered as a consequence of the dependence of Young's modulus. Finally, the results were qualitatively analyzed within the scope of chemical degradation theories in polymers. |
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