Extended multiscale FE approach for steady-state heat conduction analysis of 3D braided composites

Abstract A new multiscale finite element (FE) calculation procedure is presented to predict the thermal conductive performance of 3D braided composites by a combined approach of the multiscale asymptotic expansion homogenization (MAEH) method and multiphase finite element (MPFE) approach. The analysis was performed based on a homogeneous macrostructure model and a heterogeneous microstructure representative unit cell model. The heat flux distribution, temperature distribution of 3D braided composites under different boundary conditions are basically predicted. It is found that the heat flux transmission is mainly along fiber orientation direction and the heat flux of the braiding yarns in the center region is much higher than that in the outer region. Effective coefficients of thermal conductivity (CTC) of 3D braided composites is predicted and compared with experiment data available in the literature to demonstrate the accuracy and reliability of the present multiscale FE approach. The procedure, which can be implemented into commercial finite element codes, is an efficient tool for the design and analysis of a heterogeneous material with anisotropic properties or complex geometries.

[1]  M. Meo,et al.  Multiscale damage modelling of 3D weave composite by asymptotic homogenisation , 2013 .

[2]  Investigation on the Thermal Conductivity of 3-Dimensional and 4-Directional Braided Composites , 2007 .

[3]  T. Chou,et al.  Elastic Stiffness of Three-Dimensional Braided Textile Structural Composites , 1986 .

[4]  W. Tao,et al.  Multi-size unit cells to predict effective thermal conductivities of 3D four-directional braided composites , 2017 .

[5]  Xingang Yu,et al.  The prediction on mechanical properties of 4-step braided composites via two-scale method , 2007 .

[6]  T. Zeng,et al.  Predicting the thermal conductivity and temperature distribution in 3D braided composites , 2014 .

[7]  Zi-Xing Lu,et al.  Effect of interfacial properties on the thermophysical properties of 3D braided composites: 3D multiscale finite element study , 2014 .

[8]  Changchun Wu,et al.  A study of three-dimensional four-step braided piezo-ceramic composites by the homogenization method , 2001 .

[9]  T. Chou,et al.  Analysis and Modeling of Three-Dimensional Textile Structural Composites , 1991 .

[10]  Tsu-Wei Chou,et al.  Fiber Inclination Model of Three-Dimensional Textile Structural Composites , 1986 .

[11]  Abhijit Dasgupta,et al.  Three-dimensional modeling of woven-fabric composites for effective thermo-mechanical and thermal properties , 1996 .

[12]  Numerical Predictions of Effective Thermal Conductivities for Three-dimensional Four-directional Braided Composites Using the Lattice Boltzmann Method , 2015, 1503.08718.

[13]  Naoyuki Watanabe,et al.  A novel asymptotic expansion homogenization analysis for 3-D composite with relieved periodicity in the thickness direction , 2014 .

[14]  W. Tao,et al.  Numerical prediction of effective thermal conductivities of 3D four-directional braided composites , 2015 .

[15]  S. Vel,et al.  Multiscale thermoelastic analysis of random heterogeneous materials: Part II: Direct micromechanical failure analysis and multiscale simulations , 2010 .

[16]  Naoyuki Watanabe,et al.  Thermomechanical properties and stress analysis of 3-D textile composites by asymptotic expansion homogenization method , 2014 .

[17]  B. Gu,et al.  Multi-scale finite element analyses on the thermal conductive behaviors of 3D braided composites , 2016 .

[18]  Xinwei Wang,et al.  Multi-scale Analyses of 3D Woven Composite Based On Periodicity Boundary Conditions , 2007 .

[19]  Tao Zeng,et al.  Thermo-mechanical behavior analysis of 3D braided composites by multiscale finite element method , 2017 .