Title of article :
Determination of critical material parameters for numerical simulation of acrylic sheet forming
Author/Authors :
Y. DONG، نويسنده , , R. J. T. LIN، نويسنده , , D. BHATTACHARYYA، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2005
Pages :
12
From page :
399
To page :
410
Abstract :
In order to accurately demonstrate the material behavior during numerical simulation of thermoforming, the critical material parameters of any specific polymeric material need to be determined properly. In this study, acrylic sheets (Poly(methyl methacrylate), PMMA) of both opaque and transparent nature were chosen as the sample materials due to their widespread usage for the manufacturing of bathwares and kitchen appliances. Hyperelastic theory (e.g., Mooney-Rivlin and Ogden models) was employed with experimental verification to obtain the critical material parameters of PMMA. By conducting uniaxial tensile tests at elevated temperatures between 150 and 190◦C and utilising the least square method (LSM), the major material parametric functions were derived in terms of forming temperature. Preliminary application on simulation of free inflation of a bubble profile resulted in promising agreement with the experimental data validating the developed parameters. C 2005 Springer Science + Business Media, Inc
Journal title :
Journal of Materials Science
Serial Year :
2005
Journal title :
Journal of Materials Science
Record number :
829478
Link To Document :
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