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1200 ℃高温环境下部件受热前表面应变的光学测量

吴大方 王怀涛 朱芳卉

吴大方, 王怀涛, 朱芳卉. 1200 ℃高温环境下部件受热前表面应变的光学测量[J]. 应用数学和力学, 2018, 39(6): 631-644. doi: 10.21656/1000-0887.390084
引用本文: 吴大方, 王怀涛, 朱芳卉. 1200 ℃高温环境下部件受热前表面应变的光学测量[J]. 应用数学和力学, 2018, 39(6): 631-644. doi: 10.21656/1000-0887.390084
WU Dafang, WANG Huaitao, ZHU Fanghui. Optical Measurement of Heated-Front-Surface Strains for Components in High Temperature Environments up to 1200 ℃[J]. Applied Mathematics and Mechanics, 2018, 39(6): 631-644. doi: 10.21656/1000-0887.390084
Citation: WU Dafang, WANG Huaitao, ZHU Fanghui. Optical Measurement of Heated-Front-Surface Strains for Components in High Temperature Environments up to 1200 ℃[J]. Applied Mathematics and Mechanics, 2018, 39(6): 631-644. doi: 10.21656/1000-0887.390084

1200 ℃高温环境下部件受热前表面应变的光学测量

doi: 10.21656/1000-0887.390084
基金项目: 国家自然科学基金(11427802)
详细信息
    作者简介:

    吴大方(1950—),男,教授,博士生导师(通讯作者. E-mail: wdf1950@163.com).

  • 中图分类号: TP274

Optical Measurement of Heated-Front-Surface Strains for Components in High Temperature Environments up to 1200 ℃

Funds: The National Natural Science Foundation of China(11427802)
  • 摘要: 在大气层内飞行的高超声速飞行器外表面因气动加热处于极为恶劣的高温环境中.而气动热模拟试验中,飞行器部件受热前表面在高温环境下的变形测量非常重要且十分困难.通过建立水冷式高超声速飞行器部件受热前表面应变测量系统,结合数字图像相关方法,实现了有氧环境下耐高温Al2O3陶瓷材料受热前表面温度高至1200℃的应变测量.为了验证试验结果的正确性,与Hillman给出的Al2O3材料热膨胀系数-温度关系式进行了对比,具有良好的吻合性.所建立的1200 ℃高温应变测试系统及氧化环境下部件受热前表面应变测试方法,为高超声速飞行器受热部件的热强度分析及安全可靠性设计提供了非常重要的试验测试手段.
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出版历程
  • 收稿日期:  2017-12-11
  • 修回日期:  2018-03-13
  • 刊出日期:  2018-06-15

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