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| Experiments analysis of shear strength between granular ice and titanium alloy surface |
| Received:September 03, 2016 Revised:March 03, 2017 |
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| DOI：10.7511/jslx201703016 |
| KeyWord:frozen ice metal surface shear strength environmental temperature titanium alloy |
| Author | Institution |
| 杨坤 |
中国航发商用航空发动机有限责任公司, 上海 |
| 陈晓东 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 周宏奎 |
中国航发商用航空发动机有限责任公司, 上海 |
| 陈卓 |
中国航发商用航空发动机有限责任公司, 上海 |
| 季顺迎 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
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| Abstract: |
| In high humidity atmosphere,the engine of aircrafts faces challenges from icing when water drops hit on its surface.In this paper,a spraying apparatus is established to model the icing process on titanium alloy surfaces.Through applying shear forces on the cohesive zone,the shear strength (τs) under different temperature (T) is obtained.The result shows that the τs linearly decreases with T.It shows that the shear failure happened in the cohesive zone between the granular ice and titanium alloy surface is a typical brittle failure.The experiment data would be useful for the analysis of physical and mechanical properties of granular ice,helpful for the ice-resistant design of the aircraft engine,as well as calibration for simulation. |
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