Micro-CT analysis of deviations in fiber orientation and composite stiffness near the microvascular channels embedded in glass-fiber reinforced composites

2020 ◽  
Vol 237 ◽  
pp. 111896 ◽  
Author(s):  
Baris Sabuncuoglu ◽  
Hamed Tanabi ◽  
Jeroen Soete ◽  
Stepan V. Lomov
Keyword(s):  
Glass Fiber ◽  
Fiber Orientation ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Micro Ct ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Ct Analysis ◽  
Composite Stiffness

scholarly journals Warpage Reduction of Glass Fiber Reinforced Plastic Using Microcellular Foaming Process Applied Injection Molding

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 360 ◽  
Author(s):  
Hyun Kim ◽  
Joo Sohn ◽  
Youngjae Ryu ◽  
Shin Kim ◽  
Sung Cha
Keyword(s):  
Injection Molding ◽  
Glass Fiber ◽  
Fiber Orientation ◽  
Mechanical And Thermal Properties ◽  
Micro Ct ◽  
Fiber Reinforced ◽  
Foaming Process ◽  
Microcellular Foaming ◽  
Glass Fiber Reinforced ◽  
The Impact

This study analyzes the fundamental principles and characteristics of the microcellular foaming process (MCP) to minimize warpage in glass fiber reinforced polymer (GFRP), which is typically worse than that of a solid polymer. In order to confirm the tendency for warpage and the improvement of this phenomenon according to the glass fiber content (GFC), two factors associated with the reduction of the shrinkage difference and the non-directionalized fiber orientation were set as variables. The shrinkage was measured in the flow direction and transverse direction, and it was confirmed that the shrinkage difference between these two directions is the cause of warpage of GFRP specimens. In addition, by applying the MCP to injection molding, it was confirmed that warpage was improved by reducing the shrinkage difference. To further confirm these results, the effects of cell formation on shrinkage and fiber orientation were investigated using scanning electron microscopy, micro-CT observation, and cell morphology analysis. The micro-CT observations revealed that the fiber orientation was non-directional for the MCP. Moreover, it was determined that the mechanical and thermal properties were improved, based on measurements of the impact strength, tensile strength, flexural strength, and deflection temperature for the MCP.

Design and analysis of glass fiber reinforced composites

2020 ◽  
Vol 26 ◽  
pp. 2491-2494
Author(s):  
J. Jayapriya ◽  
D. Muruganandam ◽  
M. Shantharaj ◽  
S. Thayumanavan ◽  
S. Suraj ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced
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