湿热环境下复合材料层合板本构模型研究及其应用
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摘要
近年来复合材料被广泛地应用于航空航天等工程领域。在实际的使用中,复合材料在不同的湿热环境下其力学性能会发生显著变化,针对这一问题,国内外已有大量的试验研究,而对湿热环境下复合材料的本构模型理论的研究则较少。在经典层合板理论基础上引入湿热膨胀系数的概念,通过定义一个无量纲的温度,建立材料弹性常数与湿热参数之间的函数关系,推导出复合材料单层板在湿热力耦合作用下的本构关系,同时加入三维Hashin失效判定准则对层合板的损伤演化及失效模式进行模拟。结果表明:该模型较好地预测了复合材料层合板在不同湿热环境下的弹性响应,为分析实际工程中复合材料结构模型在湿热环境下的力学行为提供了重要参考。
In recent years,composite materials have been widely used in aerospace and other engineering fields.In actual use,the mechanical properties of composites will change significantly in different hydrothermal environments.There have been a large number of experimental studies at home and abroad in response to this problem,while less research has been conducted on the constitutive model theory of composites in different hydrothermal environments.The study of the thermal properties of composite materials is adopted to introduce the concept of hygroscopic expansion coefficient and thermal expansion coefficient on the basis of classical laminated plate theory.The functional relationship between the elastic constants and the thermal parameters of the materials is established through the definition of a dimensionless temperature,deriving the constitutive equations of the single layer of composite material under the coupling of moisture and heat.Meanwhile,the 3 D Hashin failure criteria is used to simulate the damage evolution and failure mode of the composite laminates.The results show that the model can predict the elastic response of composite laminates in different moist and thermal environments,which provides an important reference for analyzing the mechanical behavior of composite material structure in hydrothermal environments.
In recent years,composite materials have been widely used in aerospace and other engineering fields.In actual use,the mechanical properties of composites will change significantly in different hydrothermal environments.There have been a large number of experimental studies at home and abroad in response to this problem,while less research has been conducted on the constitutive model theory of composites in different hydrothermal environments.The study of the thermal properties of composite materials is adopted to introduce the concept of hygroscopic expansion coefficient and thermal expansion coefficient on the basis of classical laminated plate theory.The functional relationship between the elastic constants and the thermal parameters of the materials is established through the definition of a dimensionless temperature,deriving the constitutive equations of the single layer of composite material under the coupling of moisture and heat.Meanwhile,the 3 D Hashin failure criteria is used to simulate the damage evolution and failure mode of the composite laminates.The results show that the model can predict the elastic response of composite laminates in different moist and thermal environments,which provides an important reference for analyzing the mechanical behavior of composite material structure in hydrothermal environments.
引文
[1]Shen C H,Springer G S.Effects of moisture and temperature on the tensile strength of composite materials[J].Journal of Composite Materials,1977,101(1):661-666.
[2]包建文,陈祥宝.5284/T300复合材料湿热性能研究[J].宇航材料工艺,2000,30(4):37-40.Bao Jianwen,Chen Xiangbao.Study on hygrothermal properties of 5284/T300composites[J].Aerospace Materials&Technology,2000,30(4):37-40.(in Chinese)
[3]Scida D,Aboura Z,Benzeggagh M L.The effect of ageing on the damage events in woven-fibre composite materials under different loading conditions[J].Composites Science&Technology,2002,62(4):551-557.
[4]Earl J S,Dulieu-Barton J M,Shenoi R A.Determination of hygrothermal ageing effects in sandwich construction joints using thermoelastic stress analysis[J].Composites Science&Technology,2003,63(2):211-223.
[5]Guo B,Jia D,Fu W,et al.Hygrothermal stability of dicyanate-novolac epoxy resin blends[J].Polymer Degradation&Stability,2003,79(3):521-528.
[6]Abdel-Magid B,Ziaee S,Gass K,et al.The combined effects of load,moisture and temperature on the properties of E-glass/epoxy composites[J].Composite Structures,2005,71(3/4):320-326.
[7]李敏,张宝艳.5428/T700复合材料的耐湿热性能[J].纤维复合材料,2006,23(1):3-4.Li Min,Zhang Baoyan.Study on hydrothermal-resistant properties of 5428/T700composite system[J].Fiber Composites,23(1):3-4.(in Chinese)
[8]Won J P,Lee S J,Kim Y J,et al.The effect of exposure to alkaline solution and water on the strength-porosity relationship of GFRP rebar[J].Composites Part B:Engineering,2008,39(5):764-772.
[9]CandidoG M,Costa M L,Rezende M C,et al.Hygrothermal effects on quasi-isotropic carbon epoxy laminates with machined and molded edges[J].Composites Part B:Engineering,2008,39(3):490-496.
[10]余治国,杨胜春,宋笔锋.T700和T300碳纤维增强环氧树脂基复合材料耐湿热老化性能的对比[J].机械工程材料,2009,33(6):48-51.Yu Zhiguo,Yang Shengchun,Song Bifeng.Comparison of wet and hot aging resistance of T700and T300carbon fiber strengthened epoxy resin composites[J].Materials for Mechanical Engineering,2009,33(6):48-51.(in Chinese)
[11]Mohan J,Ivankovi8 A,Murphy N.Effect of prepreg storage humidity on the mixed-mode fracture toughness of a co-cured composite joint[J].Composites Part A,2013,45(2):23-34.
[12]Amara K H,Tounsi A,Benzair A.Transverse cracking and elastic properties reduction in hygrothermal aged cross-ply laminates[J].Materials Science&Engineering:A,2005,396(1/2):369-375.
[13]Kundu C K,Han J H.Nonlinear buckling analysis of hygrothermoelastic composite shell panels using finite element method[J].Composites Part B:Engineering,2009,40(4):313-328.
[14]闫伟,燕瑛,苏玲.湿-热-力耦合环境下复合材料结构损伤分析与性能研究[J].复合材料学报,2010,27(2):113-116.Yan Wei,Yan Ying,Su Ling.Damage analysis and strength prediction of composites structures in hygrothermal environment[J].Acta Materiae Compositae Sinica,2010,27(2):113-116.(in Chinese)
[15]刘玉佳,燕瑛,何明泽,等.湿/热/力耦合条件下复合材料结构渐进损伤仿真[J].北京航空航天大学学报,2012,38(3):384-388,393.Liu Yujia,Yan Ying,He Mingze,et al.Simulation of progressive damage on composite structure under hydro/thermo/mechanical coupled condition[J].Journal of Beijing University of Aeronautics&Astronautics,2012,38(3):384-388,393.(in Chinese)
[16]Lal A,Singh B N,Anand S.Nonlinear bending response of laminated composite spherical shell panel with system randomness subjected to hygro-thermo-mechanical loading[J].International Journal of Mechanical Sciences,2011,53(10):855-866.
[17]Kumar R,Lal A,Patil H,et al.Hygrothermally induced buckling analysis of elastically supported laminated composite plates with random system properties[J].Journal of Composite Materials,2012,46(21):2711-2730.
[18]Krzysztof Dems,Elz·bieta Radaszewska,Jan Turant.Modeling of fiber-reinforced composite material subjected to thermal load[J].Journal of Thermal Stresses,2012,35(7):579-595.
[19]韩坤华,余音,汪海.瞬态湿浓度分布对复合材料胶接修理强度的影响[C]∥全国复合材料学术会议,2012.Hang Kunhua,Yu Yin,Wang Hai.Effect of transient moisture distribution on composite bonded repair strength[C]∥National Conference on Composite Materials,2012.(in Chinese)
[20]Balasubramanian M.Introduction to composite materials[M].Springer,Singapore:Technomic Pub.Co,1980.
[21]Emam S,Eltaher M A.Buckling and postbuckling of composite beams in hygrothermal environments[J].Composite Structures,2016,152:665-675.
[22]徐颖,温卫东,崔海涛.复合材料层合板疲劳逐渐累积损伤寿命预测方法[J].航空动力学报,2007,22(4):602-607.Xu Yin,Wen Weidong,Cui Haitao.Progressive fatigue damage analysis method of laminated composites[J].Journal of Aerospace Power,2007,22(4):602-607.(in Chinese)
[23]姚宇超,许希武,毛春见.湿热环境下开孔复合材料层合板的强度[J].材料科学与工程学报,2015,33(3):425-431.Yao Yuchao,Xu Xiwu,Mao Chunjian.Strength of composite laminates with open hole under hygrothermal conditions[J].Journal of Materials Science&Engineering,2015,33(3):425-431.(in Chinese)
[2]包建文,陈祥宝.5284/T300复合材料湿热性能研究[J].宇航材料工艺,2000,30(4):37-40.Bao Jianwen,Chen Xiangbao.Study on hygrothermal properties of 5284/T300composites[J].Aerospace Materials&Technology,2000,30(4):37-40.(in Chinese)
[3]Scida D,Aboura Z,Benzeggagh M L.The effect of ageing on the damage events in woven-fibre composite materials under different loading conditions[J].Composites Science&Technology,2002,62(4):551-557.
[4]Earl J S,Dulieu-Barton J M,Shenoi R A.Determination of hygrothermal ageing effects in sandwich construction joints using thermoelastic stress analysis[J].Composites Science&Technology,2003,63(2):211-223.
[5]Guo B,Jia D,Fu W,et al.Hygrothermal stability of dicyanate-novolac epoxy resin blends[J].Polymer Degradation&Stability,2003,79(3):521-528.
[6]Abdel-Magid B,Ziaee S,Gass K,et al.The combined effects of load,moisture and temperature on the properties of E-glass/epoxy composites[J].Composite Structures,2005,71(3/4):320-326.
[7]李敏,张宝艳.5428/T700复合材料的耐湿热性能[J].纤维复合材料,2006,23(1):3-4.Li Min,Zhang Baoyan.Study on hydrothermal-resistant properties of 5428/T700composite system[J].Fiber Composites,23(1):3-4.(in Chinese)
[8]Won J P,Lee S J,Kim Y J,et al.The effect of exposure to alkaline solution and water on the strength-porosity relationship of GFRP rebar[J].Composites Part B:Engineering,2008,39(5):764-772.
[9]CandidoG M,Costa M L,Rezende M C,et al.Hygrothermal effects on quasi-isotropic carbon epoxy laminates with machined and molded edges[J].Composites Part B:Engineering,2008,39(3):490-496.
[10]余治国,杨胜春,宋笔锋.T700和T300碳纤维增强环氧树脂基复合材料耐湿热老化性能的对比[J].机械工程材料,2009,33(6):48-51.Yu Zhiguo,Yang Shengchun,Song Bifeng.Comparison of wet and hot aging resistance of T700and T300carbon fiber strengthened epoxy resin composites[J].Materials for Mechanical Engineering,2009,33(6):48-51.(in Chinese)
[11]Mohan J,Ivankovi8 A,Murphy N.Effect of prepreg storage humidity on the mixed-mode fracture toughness of a co-cured composite joint[J].Composites Part A,2013,45(2):23-34.
[12]Amara K H,Tounsi A,Benzair A.Transverse cracking and elastic properties reduction in hygrothermal aged cross-ply laminates[J].Materials Science&Engineering:A,2005,396(1/2):369-375.
[13]Kundu C K,Han J H.Nonlinear buckling analysis of hygrothermoelastic composite shell panels using finite element method[J].Composites Part B:Engineering,2009,40(4):313-328.
[14]闫伟,燕瑛,苏玲.湿-热-力耦合环境下复合材料结构损伤分析与性能研究[J].复合材料学报,2010,27(2):113-116.Yan Wei,Yan Ying,Su Ling.Damage analysis and strength prediction of composites structures in hygrothermal environment[J].Acta Materiae Compositae Sinica,2010,27(2):113-116.(in Chinese)
[15]刘玉佳,燕瑛,何明泽,等.湿/热/力耦合条件下复合材料结构渐进损伤仿真[J].北京航空航天大学学报,2012,38(3):384-388,393.Liu Yujia,Yan Ying,He Mingze,et al.Simulation of progressive damage on composite structure under hydro/thermo/mechanical coupled condition[J].Journal of Beijing University of Aeronautics&Astronautics,2012,38(3):384-388,393.(in Chinese)
[16]Lal A,Singh B N,Anand S.Nonlinear bending response of laminated composite spherical shell panel with system randomness subjected to hygro-thermo-mechanical loading[J].International Journal of Mechanical Sciences,2011,53(10):855-866.
[17]Kumar R,Lal A,Patil H,et al.Hygrothermally induced buckling analysis of elastically supported laminated composite plates with random system properties[J].Journal of Composite Materials,2012,46(21):2711-2730.
[18]Krzysztof Dems,Elz·bieta Radaszewska,Jan Turant.Modeling of fiber-reinforced composite material subjected to thermal load[J].Journal of Thermal Stresses,2012,35(7):579-595.
[19]韩坤华,余音,汪海.瞬态湿浓度分布对复合材料胶接修理强度的影响[C]∥全国复合材料学术会议,2012.Hang Kunhua,Yu Yin,Wang Hai.Effect of transient moisture distribution on composite bonded repair strength[C]∥National Conference on Composite Materials,2012.(in Chinese)
[20]Balasubramanian M.Introduction to composite materials[M].Springer,Singapore:Technomic Pub.Co,1980.
[21]Emam S,Eltaher M A.Buckling and postbuckling of composite beams in hygrothermal environments[J].Composite Structures,2016,152:665-675.
[22]徐颖,温卫东,崔海涛.复合材料层合板疲劳逐渐累积损伤寿命预测方法[J].航空动力学报,2007,22(4):602-607.Xu Yin,Wen Weidong,Cui Haitao.Progressive fatigue damage analysis method of laminated composites[J].Journal of Aerospace Power,2007,22(4):602-607.(in Chinese)
[23]姚宇超,许希武,毛春见.湿热环境下开孔复合材料层合板的强度[J].材料科学与工程学报,2015,33(3):425-431.Yao Yuchao,Xu Xiwu,Mao Chunjian.Strength of composite laminates with open hole under hygrothermal conditions[J].Journal of Materials Science&Engineering,2015,33(3):425-431.(in Chinese)