Fracture Toughness of Structural Ceramics Under Biaxial Stress State by Anticlastic Bending Test
| Autor: | Masaki Kaji, Takashi Ono |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Energy Engineering and Power Technology Aerospace Engineering Biaxial tensile test Fracture mechanics Structural engineering Bending Stress (mechanics) Fuel Technology Fracture toughness Nuclear Energy and Engineering visual_art visual_art.visual_art_medium Fracture (geology) Cylinder stress Ceramic Composite material business Stress intensity factor |
| Zdroj: | Journal of Engineering for Gas Turbines and Power. 119:7-14 |
| ISSN: | 1528-8919 0742-4795 |
| DOI: | 10.1115/1.2815566 |
| Popis: | Mixed-mode fracture of structural ceramics under biaxial stress state was investigated by an anticlastic bending test using the controlled surface flaw technique. The stress state of the anticlastic bending specimen is biaxial. This test enables the study of fractures under pure mode I, pure mode II, or any combination of mode I and mode II loading. To discuss the experimental results, a parameter ‘T’ was introduced to the modified maximum hoop stress criterion. This parameter represents frictional effects of crack interfaces on the mixed-mode fracture and can be obtained experimentally. Relative magnitudes of mode I and mode II stress intensity factors and the directions of non-coplanar crack extension angles were predicted using the parameter ‘T’. Reasonable agreement with the experimental results was obtained. |
| Databáze: | OpenAIRE |
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