Orthotropic thermal conductivity of plain-weave fabric composites using a homogenization technique

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Journal of Composite Materials; (United States)

DOI:https://doi.org/10.1177/002199839202601806· OSTI ID:6349459

Dasgupta, A; Agarwal, R K ^[1]

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1. Maryland Univ., College Park (United States)

This article presents a new application of two-scale asymptotic homogenization schemes to predict the orthotropic thermal conductivity of plain-weave fabric reinforced composite laminates. A unit-cell, enclosing the characteristic periodic repeat pattern in the fabric weave, is isolated and modeled. A new three-dimensional series-parallel thermal resistance network is developed to solve a steady-state heat transfer boundary value problem (BVP) for this unit-cell. Laminate effective orthotropic thermal conductivities are obtained analytically and numerically as functions of (1) thermal conductivity of the constituent materials, (2) fiber volume fraction, and (3) weave style. The analytically predicted thermal conductivity values are compared with numerical finite element predictions, with existing models in the literature and with experimentally obtained values. 27 refs.

• OSTI ID: 6349459
• Journal Information: Journal of Composite Materials; (United States), Journal Name: Journal of Composite Materials; (United States) Vol. 26:18; ISSN JCOMBI; ISSN 0021-9983
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ANALYTICAL SOLUTION
CALCULATION METHODS
COMPOSITE MATERIALS
FINITE ELEMENT METHOD
MATERIALS
NUMERICAL SOLUTION
PHYSICAL PROPERTIES
SCALE MODELS
STRUCTURAL MODELS
THERMAL CONDUCTIVITY
THERMAL INSULATION
THERMODYNAMIC PROPERTIES