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Deformation of wrinkled membrane inflatable structures under concentrated loads 被引量:1
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作者 王长国 杜星文 +1 位作者 万志敏 赫晓东 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2008年第5期593-597,共5页
The axisymmetric deformation of a paraboloidal membrane inflatable structure subjected to a concentrated load at its apex and a uniform internal pressure was analyzed. The wrinkle angle was obtained according to the m... The axisymmetric deformation of a paraboloidal membrane inflatable structure subjected to a concentrated load at its apex and a uniform internal pressure was analyzed. The wrinkle angle was obtained according to the membrane theory when wrinkles appeared and determined the wrinkle region. The wrinkled deformation was obtained based on the relaxed energy function. The effects of inflation pressure and concentrated loads on the wrinkle angle were analyzed and the deformation was obtained at the apex of structure. According to the numerical analysis, the shape of deformed meridians with wrinkles was obtained. 展开更多
关键词 MEMBRANE membrane theory WRINKLE space inflatable structure
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Experiment research on mechanical behavior of the aluminum laminate in the low-high temperature
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作者 林国昌 谢志民 +1 位作者 万志敏 杜星文 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2007年第3期302-304,共3页
Aluminum laminate is one kind of the rigidizable composite materials and plays an important role in construction of the inflatable space structure(ISS),which has potential application in space in the future.But the st... Aluminum laminate is one kind of the rigidizable composite materials and plays an important role in construction of the inflatable space structure(ISS),which has potential application in space in the future.But the study of the predecessors mainly focuses on the research of the mechanical behavior in the room temperature,for this reason,mechanical properties of the aluminum laminate in low-high temperature have been studied in this paper.The failure mechanism of the aluminum laminate is also analyzed in the microscopic view by JCXA-T33 electron probe.The results show uhat the temperature has significant influence on the strength and Young's modulus of the aluminum laminate.With the increase of temperature,both the strength and Young's modulus of the aluminum laminate decrease.A model between Young's modulus of the aluminum laminate and temperatures is obtained by using Arrhenius equation.The predicted values by the model agree well with the experiment values. 展开更多
关键词 aluminum laminate rigidizable composite materials inflatable space structure mechanical behavior Arrhenius equation
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