建立了舍圆形穿孔和方形穿孔损伤复合材料层舍板的有限元计算模型.随着开孔损伤尺寸的变化,计算出含圆形穿孔或方形穿孔损伤复合材料层合板的各阶固有频率.拟合出开孔大小和固有频率之间的关系,得到了层合板固有频率随孔的尺寸和形状变化规律.结果表明,随着损伤程度增加,层合板固有频率都将减小;方孔损伤层合板固有频率减小的幅度和速度都比圆孔损伤层舍板的大;小尺寸穿孔损伤对层合板固有频率的影响很小.
参考文献
| [1] | 宁荣昌.复合材料冲击损伤问题的研究[J].玻璃钢/复合材料,1992(06) |
| [2] | 宁荣昌;王孝忠.环氧玻璃钢层合板低速冲击损伤特性的研究[J].玻璃钢/复合材料,1992(04) |
| [3] | 谢禹钧;冯广占;蒋国宾.对称正交铺设层板损伤的有限元分析[J].玻璃钢/复合材料,1990(02) |
| [4] | 王春敏,董娟,董孚允.纺织结构复合材料的冲击损伤容限[J].纤维复合材料,2000(02):13-15. |
| [5] | 张宝艳;陈祥宝;李萍 .碳纤维增强树脂基复合材料抗冲击性能的改进方法[J].纤维复合材料,1999,4(01):1-6. |
| [6] | 蒋海滨,魏伯荣,李名琦.薄层芳纶复合材料（内衬吸能垫）的平头冲击性能研究[J].纤维复合材料,2000(04):29-32. |
| [7] | Kumar L.R;Datta P.K;Prabhakara D.L .Vibration and stability behavior of laminated composite curved panels with cutout under partial in-plane loads[J].International Journal of Structural Stability and Dynamics,2005,5(01):75-94. |
| [8] | Paramasivam P .Free vibration of square plates with square openings[J].Journal of Sound and Vibration,1973,30:173-178. |
| [9] | Aksu G;Ali R .Determination of dynamic characteristics of rectangular plates with cutouts using a finite difference formulation[J].Journal of Sound and Vibration,1976,44:147-158. |
| [10] | Rajamani A;Prabhakaran R .Dynamic response of composite plates with cutouts.Part Ⅰ:Simply-supported plates[J].Journal of Sound and Vibration,1977,54:549-564. |
| [11] | Rajamani A;Prabhakaran R .Dynamic response of composite plates with cutouts.Part Ⅱ:Clampod-elamped plates[J].Journal of Sound and Vibration,1977,54:565-576. |
| [12] | Jenq S.T;Hwang G.C;Yang S.M .Effect of square cut-outs on the natural frequencies and mode shapes of GRP cress-ply laminates[J].Composites Science and Technology,1993,1(47):91-101. |
| [13] | Ramakrishna S;Rao Koqanti M;Rao N.S .Dynamic analysis of laminates with elliptical cutout using the hybrid-stress finite element[J].Computers ＆ Structures,1993,2(47):281-287. |
| [14] | C. C. Chen;S. Kitipornchai;C. W. Lim .FREE VIBRATION OF SYMMETRICALLY LAMINATED THICK-PERFORATED PLATES[J].Journal of Sound and Vibration,2000(1):111-132. |
| [15] | Kumar Ashwini;Shrivastava R.P .Free vibration of square laminates with delaminnatian around a central cutout using HSDT[J].Computers ＆ Structures,2005,3(70):317-333. |
| [16] | C. C. Chen;S. Kitipornchai;C. W. Lim .FREE VIBRATION OF SYMMETRICALLY LAMINATED THICK-PERFORATED PLATES[J].Journal of Sound and Vibration,2000(1):111-132. |
| [17] | Ju F;Lee HP;Lee KH .Free vibration of composite plates with delamination around cutouts[J].Computers & Structures,1995,31:177-183. |
| [18] | Krawczuk M;Ostachowicz W;Zak A .Dynamics of cracked composite material structures[J].Computer Mech,1997,20:79-83. |
| [19] | 栗荣,杨勇,李华.正交各向异性碳/环氧邻边固支矩形层合板自振频率的近似解[J].苏州大学学报（自然科学版）,2000(01):69-73. |
| [20] | 张媛,傅成,孟春玲.开孔对薄板振动频率影响的有限元分析[J].机械设计与制造,2005(07):127-128. |
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