Fracture criterion of materials subjected to temperature gradient
Fracture tests on fatigue pre-cracked three-point bend specimens of polymethylmethacrylate (PMMA), polycarbonate (PC), and Acrylonitrile-Butadiene-Styrene (AB:S) were conducted to establish the effects of a temperature gradient on the crack initiation fracture toughness in temperature ranges where t...
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| Main Authors: | , |
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| Format: | Article |
| Language: | en |
| Published: |
Elsevier BV
1995
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/5655/1/p1.pdf http://irep.iium.edu.my/5655/ http://www.sciencedirect.com/science/article/pii/030801619593829T |
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| Summary: | Fracture tests on fatigue pre-cracked three-point bend specimens of polymethylmethacrylate (PMMA), polycarbonate (PC), and Acrylonitrile-Butadiene-Styrene (AB:S) were conducted to establish the effects of a temperature gradient on the crack initiation fracture toughness in temperature ranges where the fracture toughness of the above-mentioned materials changes steeply. The tests were made on specimens subjected to various temperature
gradients while the crack-tip temperature of the specimen was kept constant. Results obtained from the three materials were compared to establish a fracture criterion of the materials subjected to a temperature gradient. The
results showed that the fracture toughness of all three materials is influenced in a similar fashion and is dependent upon the degree of the temperature gradient along the crack line. |
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