Micro-scale model for a multi-scale modeling approach of thermoplastic fiber reinforced polymers

13th International Conference on Textile Composites

Hesseler, Stefan^1 ; Stapleton, Scott E.^2 ; Yakovlev, Valeriy^1 ; Appel, Lars^1 ; Gries, Thomas^1

Institute of Textile Technology, RWTH Aachen, Otto-Blumenthal-Straße 1, Aachen

52074, Germany^1

Department of Mechanical Engineering, University of Massachussetts Lowell, 197 Riverside St., Lowell

MA

01854, United States^2

关键词: Market share;    Micro scale models;    Multi-scale Modeling;    Multi-scale simulation;    Recyclability;    Semi-liquid;    Thermoplastic fibers;    Thermoplastic matrices;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/406/1/012049/pdf
DOI  :  10.1088/1757-899X/406/1/012049

来源: IOP

【 摘 要 】

Thermoplastic fiber reinforced composites (TPFRCs) are becoming more important due to the potential of short part cycle times and recyclability. One major problem of these materials is process stability. During processing, unwanted distortions appear due to residual stresses on different scales. The prediction of these distortions and stresses would reduce the cost of TPFRCs and would assist in achieving a higher market share. For the prediction of the residual stresses, a new multi-scale simulation approach is required. The research presented in this paper is a contribution to the micro-scale model. A method for the representation of the thermoplastic matrix in a 2D micro-scale model is developed. With this, the a solid as well as a semi-liquid state of the polymer which appear during thermoforming can be represented.