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| The Stress-Strain Simulation Analysis of Solid Propellant Head Artificial Debond Layer |
| Received:November 14, 2014 Revised:April 15, 2015 |
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| DOI：10.7643/issn.1672-9242.2015.02.007 |
| KeyWord:solid engine propellant grain artificial debond layer stress-strain finite element |
| Author | Institution |
| LIU Wei |
Southwest Research Institute of Technology and Engineering，Chongqing ，China |
| HUANG Bo |
Southwest Research Institute of Technology and Engineering，Chongqing ，China |
| LIU Jie |
Southwest Research Institute of Technology and Engineering，Chongqing ，China |
| LUO Tian-yuan |
Southwest Research Institute of Technology and Engineering，Chongqing ，China |
| XU Ze-qi |
Southwest Research Institute of Technology and Engineering，Chongqing ，China |
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| Abstract: |
| Objective To study the stress and strain of artificial debond layer of solid engine propellant head at 50,20 and -40℃. Methods Based on the linear viscoelastic finite element method, we carried out simulation analysis ofthe stress and strain of the propellant using ABAQUS software. Results The Mises and the maximum principalstress-strain contours of the artificial debond layer at three temperatures, as well as theⅠ, Ⅱ interfacial axial, radial andcircumferential stress-strain contrast curves were obtained. Conclusion The maximum stress and strain occurred at thebottom of the artificial debond layer, and the stress had a linear relationship with the change of environmentaltemperature. The temperature change had largest influence on the Ⅰinterface axial strain and the Ⅱinterface radial strain. |
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