WANG Qi, JI Ting-wu, XIE Gong-nan, ZHANG Wei-hong. Structural Analysis of Corrugated-Core Sandwich Panels for Lightweight Thermal Protection System[J]. Applied Mathematics and Mechanics, 2013, 34(2): 172-182. doi: 10.3879/j.issn.1000-0887.2013.02.007
Citation: WANG Qi, JI Ting-wu, XIE Gong-nan, ZHANG Wei-hong. Structural Analysis of Corrugated-Core Sandwich Panels for Lightweight Thermal Protection System[J]. Applied Mathematics and Mechanics, 2013, 34(2): 172-182. doi: 10.3879/j.issn.1000-0887.2013.02.007

Structural Analysis of Corrugated-Core Sandwich Panels for Lightweight Thermal Protection System

doi: 10.3879/j.issn.1000-0887.2013.02.007
  • Received Date: 2012-12-24
  • Rev Recd Date: 2012-01-15
  • Publish Date: 2013-02-15
  • Hypersonic aircrafts enter across the atmosphere with high flight speed and over a long period of time, resulting in an intense aerodynamic heating load. Thermal analysis of thermal protection system (TPS) is the base of thermalmechanical coupling analysis; and the characteristics of temperature distribution affect thermal stress of corrugated sandwich structure directly. The analysis process was divided into three steps. The insulation performance of the integrated thermal protection system (ITPS) was analyzed to get the temperature distribution firstly. Then a sequence coupled numerical method was used to simulate the thermomechanical coupling performance of ITPS. Finally the stress field and displacement field of the corrugated sandwich structure unit cell were obtained and results were discussed. The calculation results show that the structure with initial size and constraints only satisfy the use of lowpressure zone, and structure will fail when the pressure is greater than 15 000 Pa.
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