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层合复合材料自由角附近的层间应力场——一个半解析解 被引量：1

Interlaminar stresses of the free-corner effect in laminates——a semi-analytical solution
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摘要 对层合复合材料自由角附近的层间高应力问题提出了一个计算应力场的半解析解,它适合于[90°/0°]s,对称铺层的层合复合材料变温问题。对文中给出的[90°/0°]s。对称铺层碳纤维增强塑料和Ni/Al层合复合材料的两个算例,解析解所得结果与用三维有限元计算的结果符合得较好。还就应力场和层间破坏之间的关系进行了讨论,发现层间剥离应力,即正应力可能是层间破坏的主要因素。 In the present paper a semi-analytical approach is presented to examine the stresses fields in the vicinity of a free rectangular corner of a laminate with symmetrical lay-up subjected to a thermal loading.The derived solution is applied for the cases of a carbon fiber reinforcement plastics (CFRP) cross-ply laminate and a Ni/Al-laminate.The predicted interlaminar stresses fields at the ply interface are shown to be in good agreement with the results of 3-dimension finite element analyses.The correlation between the stress field and interlaminar failure is also investigated;it shows that peeling stresses may be a significant factor for interlaminar failure.
作者 金培鹏 Wilfried Becker 丁雨田 许广济
机构地区 兰州理工大学材料科学与工程学院 达姆施塔特工业大学力学研究所
出处 《青海大学学报（自然科学版）》 2005年第1期1-5,共5页 Journal of Qinghai University(Natural Science)
关键词 层间应力 自由边效应 层合板自由角 自由角效应 热荷载 interlaminar stresses free-edge effect laminate corner free-corner effect thermal loading
分类号 TB33 [一般工业技术—材料科学与工程]
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参考文献11

  • 1Pipes R B,Pagano N J.Interlaminar stresses in composite laminates under uniform axial extension[J].Journal of Composite Materials,1970,(4):538-548.
  • 2Norwood D S.An analysis of interlaminar stresses in unsymmetrically laminated plates [D].Virginia:Virginia Polytechnic Institute and State University,1990.
  • 3Stiftinger M.Semi-analytical finite element formulations for layered composite shells with consideration of edge effects [R].Fortschritt-Berichte VDI, Düsseldorf,VDI-Verlag,1996,18(203).
  • 4Puppo A H,Evensen H A.Interlaminar shear in laminated composites under generalized plane stress[J].Journal of Composite Materials,1970,(4):204-220.
  • 5Pagano N J.On the calculation of interlaminar normal stress in composite laminate[J].Journal of Composite Materials,1974,(8):65-82.
  • 6Kassapoglou C,Lagace P A.Closed form solutions for the interlaminar stress field in angle-ply and cross-ply laminates[J].Journal of Composite Materials,1987,21:292-308.
  • 7Webber J P H,Morton S K.An analytical solution for the thermal stresses at the free edges of laminated plates[J].Composites Science and Technology,1993,46:175-185.
  • 8Yin W-L.Simple solutions of the free-edge stresses in composite laminates under thermal and mechanical loads[J].Journal of Composite Materials,1994,28:573-586.
  • 9Becker W,Jin P P,Neuser P.Interlaminar stresses at the free corner of a laminate[J].Composite Structures,1999,45:155-162.
  • 10Becker W,Jin P P,Lindemann Y.The "free-corner effect" in thermally loaded laminates[J].Composite Structures,2001,52:97-102.

同被引文献12

  • 1Pipes R B,Pagano N J.Interlaminar stresses in composite laminates under uniform axial extension[J].Journal of Composite Materials,1970,4:538-548.
  • 2Norwood D S.An analysis of interlaminar stresses in unsymmetrically laminated plates[D].Virginia:Virginia Polytechnic Institute and State University,1990.
  • 3Stiftinger M.Semi-analytical finite element formulations for layered composite shells with consideration of edge effects[R].Fortschritt-Berichte VDI Reihe 18 Nr.203,Düsseldorf:VDI-Verlag,1996.
  • 4Puppo A H,Evensen H A.Interlaminar shear in laminated composites under generalized plane stress[J].Journal of Composite Materials,1970,4:204-220.
  • 5Pagano N J.On the calculation of interlaminar normal stress in composite laminate[J].Journal of Composite Materials,1974,8:65-82.
  • 6Kassapoglou C,Lagace P A.Closed form solutions for the interlaminar stress field in angle-ply and cross-ply laminates[J].Journal of Composite Materials,1987,21:292-308.
  • 7Webber J P H,Morton S K.An analytical solution for the thermal stresses at the free edges of laminated plates[J].Composites Science and Technology,1993,46:175-185.
  • 8Yin W-L.Simple solutions of the free-edge stresses in composite laminates under thermal and mechanical loads[J].Journal of Composite Materials,1994,28:573-586.
  • 9Becker W,Jin P P,Neuser P.Interlaminar stresses at the free corner of a laminate [J].Composite Structures,1999,45:155-162.
  • 10Becker W,Jin P P,Lindemann J.The "free-corner effect" in thermally loaded laminates [J].Composite structures,2001,52:97-102.

引证文献1

青海大学学报（自然科学版）
2005年 第1期

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