کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1465906 1509893 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermomechanical analysis, modelling and simulation of the forming of pre-impregnated thermoplastics composites
ترجمه فارسی عنوان
تجزیه و تحلیل ترمومکانیک، مدل سازی و شبیه سازی تشکیل کامپوزیت های گرمانرم قبل از آغشته
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

In this paper, the viscoelastic behaviours of pre-impregnated (prepreg) thermoplastic composites are analysed using the bias-extension test. A new constitutive model is proposed in order to simulate the forming of thermoplastic composite prepregs at the macroscopic scale. The model is based on a continuous approach. Hyperelastic behaviours are associated with dry reinforcements. Four principal deformation modes, all considered independent, define the hyperelastic potential: the elongation in warp direction, the elongation in weft direction, the in-plane shear strain and the bending contribution. Experience shows that viscoelastic behaviour is mainly associated with the in-plane shear deformation. A non-linear visco-hyperelastic model based on the generalisation of Maxwell rheological model is considered for this type of deformation mode. The finite element simulation of a stamping case using this model is introduced. The influence of temperature on the forming stage and the performance of the model are evaluated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 78, November 2015, Pages 211–222
نویسندگان
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