热防护材料在高温、高焓、高压环境中因物理、化学和力学因素造成质量损失引起材料烧蚀,使其热力学和热物理性质发生不可逆变化,表现出复杂的非线性特征.通过对碳基复合材料热化学烧蚀机理分析,由质量守恒、能量守恒及系统化学反应的热化学平衡原理,建立相应的热化学和热力学烧蚀模型.基于材料线烧蚀引起边界移动建立热传导方程;对温度场以及热应力场求解时充分考虑材料变物性特征.通过数值模拟表征材料在高温烧蚀条件下的动态热力学行为,与实验结果吻合较好,实现了材料在高温、高过载等复杂因素耦合作用下的实时仿真.
参考文献
| [1] | Cho Donghwan,Yoon Byung Il.Microstructural interpretation of the effect of various matrices on the ablation properties of carbon-fiber-reinforced composites[J].Composites Science and Technology,2001,61(2):271-280. |
| [2] | 姜贵庆,刘连元.高速气流传热与烧蚀热防护[M].北京:国防工业出版社,2003:67-78. |
| [3] | 俞继军.混杂碳/碳复合材料的细观烧蚀机理[D].北京:北京701研究所,2005:17-100. |
| [4] | 俞继军,马志强,姜贵庆,等.C/C复合材料烧蚀形貌测量及烧蚀机理分析[J].宇航材料工艺,2003(1):36-39.Yu Jijun,Ma Zhiqiang,Jiang Guiqing,et al.Pattern surface measure and ablation analysis for C/C composite material[J].Aerospace Materials and Technology,2003(1):36-39. |
| [5] | Klett J W,Ervin V J,Edie D D.Finite-element modeling of heat transfer in carbon/carbon composites[J].Composites Science and Technology,1999,59(4):593-607. |
| [6] | 梁军,易法军.防热材料高温烧蚀-相变特性的细观研究[J].复合材料学报,2002,19(2):108-112.Liang Jun,Yi Fajun.On ablation and phase-transformation properties of thermal protective materials at high temperature by micromechanics[J].Acta Materiae Compositae Sinica,2002,19(2):108-112. |
| [7] | 黄海明,杜善义,吴林志,等.C/C复合材料烧蚀性能分析[J].复合材料学报,2001,18(3):76-80.Huang Haiming,Du Shanyi,Wu Linzhi,et al.Analysis of the ablation of C/C composites[J].Acta Materiae Compositae Sinica,2001,18(3):76-80. |
| [8] | 梁军,杜善义.防热复合材料高温力学性能[J].复合材料学报,2004,21(1):73-77.Liang Jun,Du Shanyi.Investigation of the thermo-mechanical properties of thermal protective composites under high temperature[J].Acta Materiae Compositae Sinica,2004,21(1):73-77. |
| [9] | 梁军,周振功,杜善义.树脂基材料的高温烧蚀变形[J].复合材料学报,2002,19(3):83-87.Liang Jun,Zhou Zhengong,Du Shanyi.Behavior of the ablative deformation of resin materials at high temperature[J].Acta Materiae Compositae Sinica,2002,19(3):83-87. |
| [10] | Dimitrienko Y I.Thermochemical behavior of composite materials and structures under high temperatures:1.Materials[J].Composites Part A,1997,28(5):453-461. |
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