Title: NONLINEAR VISCOELASTIC CREEP CHARACTERIZATION OF HDPE-RICE HUSK COMPOSITES
Page Range: p.581-598
Author(s): Pramanick A; Sain M
File size: 337K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 6
Abstract
Rice husk plastic composites are used in load-bearing applications such as deck boards and railings. These applications, typically using 40% plastic, are subjected t creep. In order to better define, model and predict long-term creep deformation, the viscoelastic characterisation of this material and the prediction of creep as a function of time is important for its long term commercial success. This research aims to derive a relationship between deformation, time, temperature, relative humidity and stress. In this study, therefore, hollow extruded rice husk-HDPE beams were subjected to creep and recovery in flexural mode and the stress related nonlinear creep behaviour of the same was studied phenomenologically. Both linear and non-linear region constants were determined with modified models, and a predictive model was developed. 22 refs.
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