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Applied Composite Materials

, Volume 17, Issue 4, pp 373–387 | Cite as

Finite Element Analysis of Mechanical Properties of 3D Four-Directional Rectangular Braided Composites Part 1: Microgeometry and 3D Finite Element Model

  • Dian-sen LiEmail author
  • Jia-lu Li
  • Li Chen
  • Zi-xing Lu
  • Dai-ning Fang
Article

Abstract

Based on the microstructure of three-dimensional (3D) four-directional rectangular braided composites, a new parameterized 3D finite element model (FEM) is established. This model precisely simulates the spatial configuration of the braiding yarns and considers the cross-section deformation as well as the surface contact due to the mutual squeezing in the braiding process. Moreover, it is oriented in the same reference frame as the composites, which coincides with the actual configuration of 3D braided composites and facilitates the analysis of mechanical properties. In addition, the model investigates the relationships among the structural parameters, particularly the braiding angle and the interior braiding angle, which were not taken into account in the previous models. Based on the parameterized FEM, the structural geometry of the composites is analyzed and some conclusions are drawn herein. Good agreement has been obtained between the calculated and measured values of the geometric characteristics of braided composite samples.

Keywords

Textile composites Finite element model Microstructure Geometric characteristics Mechanical properties 

Notes

Acknowledgements

The authors of this paper acknowledge the financial supports of National Natural Science Foundation of China (No.10902058), China Postdoctoral Science Foundation (No.20090450408) and Key Laboratory Foundation of Textile Science & Technology of Ministry of Education, Donghua University (No.KF0904). The authors would like to thank the editors and anonymous reviewers.

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Dian-sen Li
    • 1
    • 2
    Email author
  • Jia-lu Li
    • 3
  • Li Chen
    • 3
  • Zi-xing Lu
    • 1
  • Dai-ning Fang
    • 2
  1. 1.School of Aeronautical Science and TechnologyBeijing University of Aeronautics and AstronauticsBeijingPeople’s Republic of China
  2. 2.AML, School of AerospaceTsinghua UniversityBeijingPeople’s Republic of China
  3. 3.Key Laboratory of Advanced Textile Composite Materials of Ministry of EducationTianjin Polytechnic UniversityTianjinPeople’s Republic of China

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