کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1466017 1509904 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of thermoplastic prepreg bending stiffness during manufacturing and of its influence on wrinkling simulations
ترجمه فارسی عنوان
تجزیه و تحلیل سختی خم شدن پودر ترموپلاستی در طول ساخت و تاثیر آن در شبیه سازی چین و چروک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

Bending properties of thermoplastic prepregs used in aerospace are investigated at representative thermoforming temperatures. The influence of temperature is of principal importance because prepreg manufacturing is performed close to the resin’s melting point. A cantilever test performed in an environmental chamber is presented. Bending properties of PEEK-carbon satin and PPS-carbon satin prepregs are measured in a range of temperature including manufacturing temperatures. It is shown that the bending stiffness of the fore-mentioned thermoplastic prepregs are greatly influenced by temperature. The measured bending properties are used to simulate a thermoforming process. The impact of these properties on the simulation results is shown as well. Particularly, bending stiffness during forming determines the size of wrinkles that may appear. The sensitivity of wrinkle size with regards to the measured bending stiffness is analysed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 67, December 2014, Pages 111–122
نویسندگان
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