基于材料细观结构,建立了缝纫泡沫夹芯复合材料的刚度预测模型,并进行了刚度性能的相关试验验证.其中,对缝纫复合材料层合面板部分,考虑了缝纫角对单胞尺寸和富脂区大小的影响,以及缝纠前后层合面板厚度的变化对复合材料面板纤维体积含量的影响,采用改进的纤维弯曲模型计算了缝纫复合材料层合面板的刚度;对缝纫增强的泡沫夹芯部分,把缝线树脂柱看作是泡沫基体中的增强相,将其简化为特殊的单向增强复合材料,提出了用串并联组合模型来预测其刚度.试验测试了缝纫泡沫夹芯复合材料板试件的刚度.应用本文模型对缝纫层合面板和缝纫泡沫夹芯复合材料板的刚度进行预测,结果均与试验结果吻合较好.采用理论模型系统研究了缝纫参数和结构参数对缝纫泡沫夹芯复合材料刚度的影响.
参考文献
| [1] | Adams D O,Stanley L E.Development and evaluation of stitched sandwich panels,NASA CR-211025[R].Washington:NASA,2001:1-166. |
| [2] | Parampal S,Valeria L S.Experimental investigation on performance of angle-stitched sandwich structures,AIAA-2004-1705[C]//45th AIAA/ASME/ASCE/AHS/ASC Structures,Structural Dynamics and Materials Conference.New York:AIAA,2004:1-14. |
| [3] | Valeria L S,Shinjiro K.Evaluation of static compression properties of notched stitched sandwich structures,AIAA-2004-1704[C]//45th AIAA/ASME/ASCE/AHS/ASC Structures,Structural Dynamics and Materials Conference.New York:AIAA,2004:1-9. |
| [4] | Lascoup B,Aboura Z,Khellil K,et el.Stitching effect on static and dynamic behavior of sandwich structures[C]//7th International Conference on Sandwich Structures:Advancing with Sandwich Structures and Materials.Aalborg:Springer Netherlands,2005:681-690. |
| [5] | 郑锡涛,孙秦,李野,等.全厚度缝合复合材料泡沫芯夹层结构力学性能研究与损伤容限评定[J].复合材料学报,2006,23(6):29-36.Zheng Xitao,Sun Qin,Li Ye,et al.Mechanical behavior and damage tolerance tests of composite through-thickness stitched foam sandwich panels[J].Acta Materiae Compositae Sinica,2006,23(6):29-36. |
| [6] | 邓爱民,张佐光,李敏,等.Z向增强泡沫夹芯阻燃复合材料力学性能[J].复合材料学报,2007,24(5):50-54.Deng Aimin,Zhang Zuoguang,Li Min,et al.Mechanical properties of Z-direction reinforced foam core sandwich fireresistant composite[J].Acta Materiae Compositae Sinica,2007,24(5):50-54. |
| [7] | Mouritz A P,Leong K H,Herszberg I.A review of the effect of stitching on the in-plane mechanical properties of fibrereinforced polymer composites[J].Composites Part A,1997,28(12):979-991. |
| [8] | 于芳,燕瑛.缝合复合材料弹性常数细观力学模型的分析比较[J].宇航材料工艺,2007,37(1):36-39.Yu Fang,Yan Ying.Comparison of micro-mechanical model for elastic constants analysis of stitched composites[J].Aerospace Materials & Technology,2007,37(1):36-39. |
| [9] | 黄涛,矫桂琼,李野.缝纫泡沫夹层结构芯子剪切模量研究[J].机械强度,2007,29(1):113-117.Huang Tao,Jiao Guiqiong,Li Ye.Study on shear modulus ofstitched foam core sandwich[J].Journal of Mechanical Strength,2007,29(1):113-117. |
| [10] | 陈纲,郦正能,程小全,寇长河.厚度对缝纫层合板力学性能的影响[J].复合材料学报,2005,22(6):135-138.Chen Gang,Li Zhengneng,Cheng Xiaoquan,Kou Changhe.Effect of thickness on the mechanical properties of the stitched laminates[J].Acta Materiae Compositae Sinica,2005,22(6):135-138. |
| [11] | 魏玉卿.缝纫复合材料细观结构表征及面内力学性能的理论和模拟[D].上海:上海大学,2007:15-24. |
| [12] | 曾东,燕瑛.基于几何非线性梁理论的缝合复合材料的弹性性能分析[J].复合材料学报,2005,22(增刊):6-10.Zeng Dong,Yan Ying.Studies on elastic property of stitched composites based on geometric nonlinearity beam theory[J].Acta Materiae Compositae Sinica,2005,22(Supplement):6-10. |
| [13] | 桂良进,范子杰,陈宗渝,郦正能.缝纫层合板的本构关系研究Ⅱ:缝纫单层板有效弹性常数分析[J].复合材料学报,2002,19(1):95-100.Gui Liangjin,Fan Zijie,Chen Zongyu,Li Zhengneng.Study on constitutive relationship of stitched laminates Ⅱ:Analytical and experimental study on stiffness of stitched laminates[J].Acta Materiae Compositae Sinica,2002,19(1):95-100. |
| [14] | Reeder J R.Stitching vs a toughened matrix:Compression strength effects[J].Journal of Composite Materials,1995,29(18):2464-2487. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%