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Effects of Static Tensile Load on the Thermal Expansion of Gr/Pi Composite Material

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National Aeronautics and Space Administration

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38 pages
2 hours of reading

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The effect of static tensile load on the thermal expansion of Gr/PI composite material was measured for seven different laminate configurations. A computer program was developed which implements laminate theory in a piecewise linear fashion to predict the coupled nonlinear thermomechanical behavior. Static tensile load significantly affected the thermal expansion characteristics of the laminates tested. This effect is attributed to a fiber instability micromechanical behavior of the constituent materials. Analytical results correlated reasonably well with free thermal expansion tests (no load applied to the specimen). However, correlation was poor for tests with an applied load. Farley, G. L. Langley Research Center NASA-TP-1867, AVRADCOM-TR-81-B-2, L-14012 DA PROJ. 1L1-61102-AH-45...

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Effects of Static Tensile Load on the Thermal Expansion of Gr/Pi Composite Material, National Aeronautics and Space Administration

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Released: 2018
Binding: (Paperback)

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Title: Effects of Static Tensile Load on the Thermal Expansion of Gr/Pi Composite Material
Authors: National Aeronautics and Space Administration
Publisher: CreateSpace Independent Publishing Platform
Released: 2018
Format: Paperback
Pages: 38
ISBN10: 1725560178
ISBN13: 9781725560178
Series
Tags: Construction & Structural Engineering, Research, Engineering, NASA
Description: The effect of static tensile load on the thermal expansion of Gr/PI composite material was measured for seven different laminate configurations. A computer program was developed which implements laminate theory in a piecewise linear fashion to predict the coupled nonlinear thermomechanical behavior. Static tensile load significantly affected the thermal expansion characteristics of the laminates tested. This effect is attributed to a fiber instability micromechanical behavior of the constituent materials. Analytical results correlated reasonably well with free thermal expansion tests (no load applied to the specimen). However, correlation was poor for tests with an applied load. Farley, G. L. Langley Research Center NASA-TP-1867, AVRADCOM-TR-81-B-2, L-14012 DA PROJ. 1L1-61102-AH-45...