Effect of Press on Thermal Contact Resistance

2011 ◽  
Vol 217-218 ◽  
pp. 1541-1546
Author(s):  
Hai Ming Huang ◽  
Wen Jiao

The thermal contact resistance between polymer composites and aluminum alloy is the main parameters of thermal control design in the field of space and its heat transfer mechanism is very complex. This work is to combine experimental and numerical approaches to evaluate the nature of thermal contact between polymer composites and aluminum alloy. Thermal contact resistance between carbon fiber reinforced epoxy composites and aluminum alloy 380 was measured experimentally. And based on the finite element method, the simulations on heat transfer between polymer composites and aluminum alloy have been performed and compared with experiment results. The results show that the thermal contact resistance between carbon fiber reinforced epoxy composites and aluminum alloy is not negligible and strongly correlated with pressure.

2020 ◽  
Vol 40 (5) ◽  
pp. 415-420 ◽  
Author(s):  
Yasin Altin ◽  
Hazal Yilmaz ◽  
Omer Faruk Unsal ◽  
Ayse Celik Bedeloglu

AbstractThe interfacial interaction between the fiber and matrix is the most important factor which influences the performance of the carbon fiber-epoxy composites. In this study, the graphitic surface of the carbon fibers was modified with graphene oxide nanomaterials by using a spray coating technique which is an easy, cheap, and quick method. The carbon fiber-reinforced epoxy matrix composites were prepared by hand layup technique using neat carbon fibers and 0.5, 1 and 2% by weight graphene oxide (GO) modified carbon fibers. As a result of SEM analysis, it was observed that GO particles were homogeneously coated on the surface of the carbon fibers. Furthermore, Young's modulus increased from 35.14 to 43.40 GPa, tensile strength increased from 436 to 672 MPa, and the elongation at break was maintained around 2% even in only 2% GO addition.


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