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| Discussion on Engineering Application Method of the Natural Environment Test Data of Material |
| Received:April 19, 2016 Revised:August 31, 2016 |
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| DOI：10.7643/ issn.1672-9242.2016.05.021 |
| KeyWord:Natural environment test data Engineering application Chauvenet criterion Variation coefficient Correction factor of environmental effect |
| Author | Institution |
| 罗来正 |
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| 黎小锋 |
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| 张登 |
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| 肖勇 |
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| 张燕 |
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| Abstract: |
| Objective The engineering application method of the natural environment test data of material in design material selection and life prediction of equipment was discussed. Methods The conformity principle of the natural environment test data of material and the actual state of equipment was analyzed. The tensile strength test data of 2A12 aluminum alloy exposed in Hainan Wanning was processed using Chauvenet criterion and sample variation coefficient method. The engineering application and service life of 2A12 aluminum alloy on a certain aircraft were evaluated by the environmental effect correction coefficient C-t curve. Results The final service life of 2A12 aluminum alloy in marine atmosphere is 36 years. Which meet the requirements of service in the marine atmospheric environment and the general requirements of the 30 year calendar life of military aircraft. 2A12 aluminum alloy can be applied to the main parts of the airframe of the fuselage, wing wing, tail,dying, etc. Conclusion The engineering application of the natural environment test data of material on a certain aircraft was initially realized by this method. |
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