A Study on the Room-Temperature Curvature Shapes of Unsymmetric Laminates Including Slippage Effects

The room-temperature shapes of cured unsymmetric composite laminates have out-of-plane warping after autoclave processing. In addition, they exhibit two stable room-temperature configurations due to snap-through phenomena when the side length of laminates exceed a critical value. The cured shape of...

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Veröffentlicht in:Journal of composite materials 1998-01, Vol.32 (5), p.460-482
Hauptverfasser: Cho, Maenghyo, Kim, Min-Ho, Choi, Heung Soap, Chung, Chung Hwa, Ahn, Kyu-Jong, Eom, Yong Sung
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container_end_page 482
container_issue 5
container_start_page 460
container_title Journal of composite materials
container_volume 32
creator Cho, Maenghyo
Kim, Min-Ho
Choi, Heung Soap
Chung, Chung Hwa
Ahn, Kyu-Jong
Eom, Yong Sung
description The room-temperature shapes of cured unsymmetric composite laminates have out-of-plane warping after autoclave processing. In addition, they exhibit two stable room-temperature configurations due to snap-through phenomena when the side length of laminates exceed a critical value. The cured shape of unsymmetric laminates are influenced by many factors. Experiments show that the effect of tool-plate cannot be ignored and has significant influence on the cured shape. This study examines slippage effects resulting from the interaction between the laminates and the tool-plate which are ignored in the previous researches. By introducing a dimensionless slippage coefficient and correlating the corresponding value with experimental results, the influence of processing parameters is investigated. Modeling is extended to predict curvatures of general lamination layup configurations.
doi_str_mv 10.1177/002199839803200503
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subjects Applied sciences
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Mechanical properties
Physical properties
Physics
Polymer industry, paints, wood
Properties and testing
Solid mechanics
Static elasticity
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
Technology of polymers
title A Study on the Room-Temperature Curvature Shapes of Unsymmetric Laminates Including Slippage Effects
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