飞机复合材料长桁面外拉伸失效分析
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摘要
考虑几何、材料以及接触非线性因素,引入Hoffman材料失效准则,采用Newton-Raphson增量迭代方法建立复合材料长桁面外拉伸失效有限元仿真方法。设计验证性试验,测试三种不同长桁构型面外拉伸失效载荷和破坏模式,绘制载荷-位移曲线,证明有限元分析方法准确、有效。分析有限元和试验测试结果,研究复合材料长桁面外拉伸失效影响因素,给出飞机强度设计指导。
The nonlinear effects of geometry, material and contact are considered, the finite element analysis(hereinafter FEA) method of composite stringer out-of-plane tension failure is established precisely by using Hoffman material failure criteria and Newton-Raphson increment iteration method. A verification test is designed to test the failure load and failure mode of three different stringer configurations.Then the load-displacement curve is drawn to verify the validity of the FEA method.The influence factors of out-of-plane tension failure of composite stringer are studied, which can guide the strength design of aircraft.
The nonlinear effects of geometry, material and contact are considered, the finite element analysis(hereinafter FEA) method of composite stringer out-of-plane tension failure is established precisely by using Hoffman material failure criteria and Newton-Raphson increment iteration method. A verification test is designed to test the failure load and failure mode of three different stringer configurations.Then the load-displacement curve is drawn to verify the validity of the FEA method.The influence factors of out-of-plane tension failure of composite stringer are studied, which can guide the strength design of aircraft.
引文
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[16]Standard Guide for Installing Bonded Resistance Strain Gages[S].ASTM E1237-93,2014:1-6
[2]牛春匀.实用飞机结构应力分析与尺寸设计[M].北京:航空工业出版社,2013:241-255.NIU ChunYun.Structural stress analysis and dimension design for practical aircraft[M].Beijing:Aviation Industry Press,2013:241-255(In Chinese).
[3]中航航空研究院.复合材料结构稳定性分析指南[M].北京:航空工业出版社,2002:5.631 Institute Guide for stability analysis of composite structures[M].Beijing:Aviation Industry Press,2002:5(In Chinese).
[4]安洋.复合材料层壳结构参数优化设计及其稳定性分析研究[D].西安:西北工业大学,2007:22-23.AN Yang.Parameter optimization design and stability analysis of composite laminated shell structures[D].Xi An:Northwestern Polytechnical University,2007:22-30(In Chinese).
[5]I.Varellis,A N Kounadis.The effects of material nonlinearity and compressibility in the buckling of nonlinear elastic systems[J].Ingenieur-Archiv,1989,60(1):20-30.
[6]S.K.Panigrahi,B.Pradhan.Adhesion failure propagation in adhesively-bonded single-lap laminated FRP composite joints[J].Journal of Adhesion Science and Technology,2007,21(5):379-398.
[7]王海燕,吴存利,郭瑜超,等.民机中央翼加筋壁板承载能力的非线性有限元分析[J].航空计算技术,2012,42(03):42-45.WANG Hai Yan,WU CunLi,GUO YuChao,et al.Nonlinear finite element analysis of the load-bearing capacity of panels in the central wing of the civil aircraft[J].Aeronautical Computing Technology,2012,42(03):42-45(In Chinese).
[8]周龙超,孔婷婷.复合材料曲梁结构弯曲失效分析[J].机械强度,2018,40(02):505-508.ZHOU LongChao,KONG TingTing.Failure analysis of composite curved beam under bending load[J].Journal of Mechanical Strength,2018,40(02):505-508.
[9]刘人怀,薛江红.复合材料层合板壳非线性力学的研究进展[J].力学学报,2017,49(03):487-506.LIU RenHuai,XUE Jiang Hong.Research progress in nonlinear mechanics of laminated composite plates and shells[J].Acta mechanica Sinica,2017,49(03):487-506(In Chinese).
[10]法洋洋.埋件结构拉脱破坏非线性分析数值模拟[D].上海:上海交通大学,2012:22-27.FA YangYang.Method embedded parts numerical simulation analysis of nonlinear failure structure[D].Shanghai:Shanghai Jiaotong University,2012:22-27(In Chinese).
[11]梁珂,孙秦.几何非线性在机翼结构设计中的影响研究[J].机械强度,2010,32(02):329-332.LANG Ke,SUN Qin.Research on the influence of geometric nonlinearity in the wing structure design[J].Journal of Mechanical Strength,2010,32(20):329-332(In Chinese).
[12]M J Schulte,J Omar,E E Swartzlander.Optimal initial approximations for the Newton-Raphson division algorithm[J].Computing,1994,53(3-4):233-242.
[13]Qiang Su,Ya Ping Wu.Geometric Nonlinearity Analysis of Composite Laminated Box Beam[J].Advanced Materials Research,2011(168):1999-2002.
[14]朱鲜飞,冯蕴雯,薛小锋,等.大型客机底货舱门区拦网有限元建模及分析[J].机械强度,2014,36(04):543-549.ZHU XianFei,FENG YunWen,XUE Xiao Feng,et al.Finite element modeling and analysis of a cargo-door barrier net for a civil airplane[J].Journal of Mechanical Strength,2014,36(04):543-549(In Chinese).
[15]张博平.复合材料层压板刚度退化反问题研究[J].机械强度,2010,32(03):415-418.ZHANG BoPing,Inverse Problem study of composites laminate stiffness degenerate[J]..Journal of Mechanical Strength,2010.32(03):415-418(In Chinese).
[16]Standard Guide for Installing Bonded Resistance Strain Gages[S].ASTM E1237-93,2014:1-6