采用试验和仿真分析的方法对T800/924复合材料接头在拉伸载荷作用下的力学性能进行研究.在电子万能试验机上进行了接头试验件的拉伸试验,记录试验中试验件的破坏过程,得到了最终失效载荷.采用非线性有限元法,基于ABAQUS软件平台,使用内嵌的材料用户定义子程序(VUMAT),建立了该试验对应的有限元分析模型,得到接头的应变分布情况,并给出接头失效载荷的计算值.结果表明:计算预测接头的损伤部位与试验吻合,失效载荷计算值与试验值差值较小,证明了仿真分析方法的可行性.通过结果分析发现,孔边是应力集中的地方,破坏一般从孔边开始萌生,并且接头面外受载能力较弱,接头的失效模式一般是孔边面外拉脱.
参考文献
| [1] | 杜善义.先进复合材料与航空航天[J].复合材料学报,2007(01):1-12. |
| [2] | H. J. Phillips;R. A. Shenoi.Damage tolerance of laminated tee joints in FRP structures[J].Composites, Part A. Applied science and manufacturing,19984(4):465-478. |
| [3] | M. Kemal Apalak;Recep Gunes;M. Onder Turaman.Thermal and geometrically non-linear stress analyses of an adhesively bonded composite tee joint[J].Composites, Part A. Applied science and manufacturing,20032(2):135-150. |
| [4] | J.I.R. Blake;R.A. Shenoi;J. House.progressive damage analysis of tee joints with viscoelastic inserts[J].Composites, Part A. Applied science and manufacturing,20015(5):641-653. |
| [5] | S.Feih;H.R.Shercliff.Adhesive and composite failure prediction of single-L joint structures under tensile loading[J].International Journal of Adhesion & Adhesives,20051(1):47-59. |
| [6] | D. D. R. Cartie;G. Dell'Anno;E. Poulin.3D reinforcement of stiffener-to-skin T-joints by Z-pinning and tufting[J].Engineering Fracture Mechanics,200616(16):2532-2540. |
| [7] | G. Allegri;X. Zhang.On the delamination and debond suppression in structural joints by Z-fibre pinning[J].Composites, Part A. Applied science and manufacturing,20074(4):1107-1115. |
| [8] | B. Egan;C.T. McCarthy;M.A. McCarthy;R.M. Frizzell.Stress analysis of single-bolt, single-lap, countersunk composite joints with variable bolt-hole clearance[J].Composite structures,20123(3):1038-1051. |
| [9] | B. Egan;M.A. McCarthy;R.M. Frizzell;P.J. Gray;C.T. McCarthy.Modelling bearing failure in countersunk composite joints under quasi-static loading using 3D explicit finite element analysis[J].Composite structures,2014Feb.(Feb.):963-977. |
| [10] | 李君;姚学锋;刘应华;岑章志;寇哲君;戴棣.复合材料T型整体化结构固化翘曲变形模拟[J].复合材料学报,2009(1):156-161. |
| [11] | 赵丽滨;秦田亮;黄海;梁宪珠;曹正华.某复合材料π接头的强度估算[J].材料工程,2007(z1):90-93. |
| [12] | 盛仪;熊克;卞侃;熊璇;陈宏;郝银凤.拉伸状态下碳纤维复合材料T型接头的断裂行为[J].复合材料学报,2013(6):185-190. |
| [13] | 孙旋 .复合材料加筋板冲击损伤模拟和剩余强度分析[D].南京航空航天大学,2010. |
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