首页>
外国专利>
A METHOD OF FATIGUE TESTING THIN DUCTILE STEEL SHEETS OF LESS THAN 2 MM THICKNESS UNDER FULLY REVERSED STRESS AND STRAIN AMPLITUDES
A METHOD OF FATIGUE TESTING THIN DUCTILE STEEL SHEETS OF LESS THAN 2 MM THICKNESS UNDER FULLY REVERSED STRESS AND STRAIN AMPLITUDES
展开▼
机译：在完全逆向应力和应变幅值下疲劳测试厚度小于2 mm的薄型钢管板的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention relates to a method of fatigue testing thin ductile steel sheets of less than 2 mm thickness under fully reversed stress and strain amplitudes comprises machining of the specimen (S) to produce hour-glass (A) during stress controlled or dumbbell configuration (B) of the specimen (S) during strain controlled with established dimensions to eliminate buckling of specimen, arranging longer specimen to facilitate gripping and to avoid slippage and then polishing the specimen mechanically at slow speed, grinding the specimens with emery paper and polishing them with diamond suspension applying moderate pressure to avoid buckling of the specimen. The polished specimen are wrapped up in paper towels and preserved in well-sealed desiccators to minimize any environmental deterioration of the surface. A dynamic extensometer is provided to record the displacement. An anti-buckling fixture is fixed on the surface of the specimen and the specimen is fixed under the grip of the machine. For fixing the specimen in the anti-buckling fixture, check nuts are provided in addition to nuts to avoid slippage while testing. [IN-KOL-2010-00531A]
展开▼
