توصيف المتراكبات البوليمرية المدعمة بالألياف المصنعة بطريقة النمذجة بالترسيب المنصهر
Characterization of Fiber-Reinforced Polymer Composite Fabricated by Fused Deposition Modeling Method
- الباحث
- صابرين علي عودة
- المشرف
- هند باسل العطرقجي - نصير عبد الحسين نصير
- الجامعة
- الجامعة التكنولوجية
- الكلية / القسم
- قسم هندسة المواد / هندسة المواد
- الشهادة
- ماجستير
- السنة
- 2021
- لغة الرسالة
- انكليزي
- الكلمات المفتاحية
- Fiber-reinforced composites;Fused deposition modeling;3D printing;Mechanical properties
Abstract
This thesis deals with developing an experimental procedure for fabricating Polymer Matrix Composites using Fused Deposition Modeling (FDM) technology through embedding reinforcement fiber manually between 3D printed layers of polymeric material during the printing process. The goal of this work is to investigate the influence of fiber content and type on the mechanical properties (tension, compression, bending, impact, hardness) and physical properties (surface roughness) of 3D printing composite samples made of Acrylonitrile Butadiene Styrene (ASB) reinforced with glass and carbon fibers, both fiber types were added separately in different weight percentages (1, 2, 3, and 4%). The experimental methodology involved fabrication of 3D printed specimens of (ABS) according to the design of the experiment based on Taguchi L9 orthogonal array that was conducted with three process parameters in three levels which are Layer Thickness (0.1, 0.2, and 0.3 mm), Infill Density (25, 50, and 75%) and Infill pattern (Tri-Hexagon, Zig-Zag, and Gyroid). Multi-Objective Optimization based on Ratio Analysis (MOORA) based on the Taguchi method was used to determine the optimal values of the parameters for multi properties simultaneously. The results show a gradual improvement in mechanical properties as the content of both types of fiber increases while physical property was reduced. The improvement in the mechanical properties of ABS at 4% wt. of carbon fiber was as follows: 61% of the tensile strength, 55% of the modulus of elasticity, 77% of the compressive strength, 89% of the bending strength, 58% of the impact strength and 95% of Shore D hardness, while The increase in surface roughness was about 93%.
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