通过金相和超声衰减系数表征CFRP层压板中的孔隙,研究孔隙形貌对超声衰减的影响.结果表明:超声衰减系数随孔隙几何形貌参数(平均长、宽、面积)的增大而增大；平均孔隙长度随孔隙率的增加程度大于平均孔隙宽度随孔隙率的增加程度；超声衰减系数随主要尺寸区域内的孔隙所占比例的增加,总体趋势减小；同一孔隙率下,大尺寸孔隙所占的比例越多,其超声衰减系数越大.总之,本试验中孔隙形貌对超声衰减有一定的影响且不能忽略.
参考文献
| [1] | Jeong H. .EFFECTS OF VOIDS ON THE MECHANICAL STRENGTH AND ULTRASONIC ATTENUATION OF LAMINATED COMPOSITES[J].Journal of Composite Materials,1997(3):276-292. |
| [2] | 周晓军;游红武;程耀东 .含孔隙碳纤维复合材料的超声衰减模型[J].复合材料学报,1997,14(03):99-106. |
| [3] | JUDD N C W;WRIGHT W W .Voids and their effects on the mechanical properties of composites[J].SAMPE Journal,1978,14(01):10-14. |
| [4] | HAGSTRAND P O;BONJOUR F;MANSON J A E .The influence of void content on the structural flexural performance of unidirectional glass fiber reinforced polypropylene composites[J].Composites Part A:Applied Science and Manufacturing,2005,36(05):705-714. |
| [5] | Casal E. .Influence of porosity on the apparent interlaminar shear strength of pitch-based unidirectioal C-C composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,2001(1):73-82. |
| [6] | BOWLSE K H;FRIMFONG S .Void effects on interlaminar shear strength of unidirectional graphite-fiber-reinforced composites[J].Journal of Composite Materials,1992,26(10):1487-1509. |
| [7] | GHIORSE S R .Effect of void content on the mechanical properties of carbon/epoxy laminates[J].SAMPE Quarterly,1993,24(02):54-59. |
| [8] | 刘志真;李宏远;益小苏.孔隙率对聚酞亚胺复合材料力学性能的影响[J].材料工程,2005(09):57-58. |
| [9] | 周晓军;莫锦秋;游红武 .碳纤维复合材料分布孔隙率的超声衰减检测方法[J].复合材料学报,1997,14(03):107-113. |
| [10] | 刘继忠;周晓军;华志恒 .碳纤维复合材料孔隙率的脉冲反射发超声衰减测试模型[J].浙江大学学报,2006,40(11):1879-1881. |
| [11] | 史亦伟.超声检测[M].北京:机械工业出版社,2005:19-31. |
| [12] | 中国机械工程学会无损检测学会.超声波检测[M].北京:机械工业出版社,2000:20. |
| [13] | 宋立军 .复合材料孔隙率检测方法及其实现技术的研究[D].浙江大学,2005. |
| [14] | STONE D E W;CLARKE B .Ultrasonic attenuation as a measure of void content in carbon-fiber reinforced plastics[J].NDT,1975,8(03):137-139. |
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