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| Research on Airship Envelope Suture by Light Aging Test |
| Received:July 06, 2013 Revised:August 02, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.06.013 |
| KeyWord:envelope suture environmental factor light ageing test breaking strength |
| Author | Institution |
| ZHU Chen |
Special Vehicle Research Institute of China，Jingmen，China |
| XING Xin-xia |
Special Vehicle Research Institute of China，Jingmen，China |
| CAI Shu-yang |
Special Vehicle Research Institute of China，Jingmen，China |
| LI Yun-zhong |
Special Vehicle Research Institute of China，Jingmen，China |
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| Abstract: |
| Objective To study the light aging law and to determine the validity period of the airship envelop suture.Methods Under conditions of radiation intensity0.35W/m2@340nm, temperature77℃, relative humidity 70%, irradiation 1.5h and spray0.5h in2h, the xenon lamp light accelerated aging test was conducted for30days. The breaking strength of envelope suture was measured to calculate the breaking strength decline rate after light aging test. The aging resistant properties were evaluated by the breaking strength decline rate.ResultsThe breaking strength of airship envelop suture decline rate was20% after16days of light aging test, and the breaking strength decrease rate was 80%, and further more crack appeared on the suture after30days of test.Conclusion The decline rate of envelope suture mechanics performance increased with the test time, and the airship envelop suture was valid for16days under the test conditions. |
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