On the Erosive Wear of Carbon Fiber-Reinforced Epoxy Composite in the Olive Oil Extraction Process

2020 ◽  
Vol 142 (7) ◽  
Author(s):  
M. M. Sakka ◽  
A. Bahri ◽  
E. Kaçar ◽  
K. Elleuch ◽  
M. Urgen
Keyword(s):  
Carbon Fiber ◽  
Wear Rate ◽  
Olive Oil ◽  
Epoxy Composite ◽  
Erosive Wear ◽  
Oil Extraction ◽  
Erosion Wear ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
The Impact

Abstract The olive pomace erosion wear behavior of carbon fiber-reinforced epoxy composite (epoxy/CF) has been analyzed. A tribological test was carried out using an in house centrifugal testing setup in order to simulate the environment in olive oil extraction procedure. The environment is composed from a pomace-to-water ratio 70/30. The erosion wear-rate of this composite has been studied at different impact angles (45 deg and 90 deg) and at different impact velocities (200, 1200, 1500, and 2000 rpm). It was demonstrated that both the impact angle and the impact velocity have a significant effect on the carbon fiber-reinforced epoxy composite erosive wear-rate. The main findings reveal an erosive wear characterized by brittle damage; in fact, micro-cracks at the surfaces and sub-surfaces were found. The damage surfaces were marked by fragmented fibers.

Erosive Wear Behaviour of Carbon Fiber-reinforced Epoxy Composite

2015 ◽  
Vol 2 (4-5) ◽  
pp. 2975-2983 ◽  
Author(s):  
K. Sudarshan Rao ◽  
Y.S. Varadarajan ◽  
N. Rajendra
Keyword(s):  
Carbon Fiber ◽  
Epoxy Composite ◽  
Erosive Wear ◽  
Wear Behaviour ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

scholarly journals Experimental analysis of composite scarf adhesive joints modified with multiwalled carbon nanotubes under bending and thermomechanical impact loads

2019 ◽  
Vol 234 (1) ◽  
pp. 48-64 ◽  
Author(s):  
UA Khashaba ◽  
Ramzi Othman ◽  
IMR Najjar
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Multiwalled Carbon Nanotubes ◽  
Adhesive Joints ◽  
Impact Loads ◽  
Fiber Reinforced ◽  
Multiwalled Carbon ◽  
Impact Tests ◽  
Carbon Fiber Reinforced ◽  
The Impact

Scarf adhesive joints have attracted an increasing attention in joining/repairing of carbon fiber reinforced epoxy composite structures due to their zero eccentricity, which provides lower stress distribution across the adhesive layer and better aerodynamic surfaces compared to other bonded joints. The main objective of this study is to evaluate the performance of the scarf adhesive joints in carbon fiber reinforced epoxy composites under thermomechanical impact loads, which is very important for the aerospace and automotive industries. The adhesive was modified with optimum percentage of multiwalled carbon nanotubes. The impact tests were performed at 25 ℃, 50 ℃, and 75 ℃. The residual flexural properties of the unfailed impacted joints were measured using three-point bending test. Results from impact tests at 25 ℃, 50 ℃, and 75 ℃ showed improvement in the impact bending stiffness of the modified scarf adhesive joints by 8.3%, 7.4%, and 11.8% and maximum contact force by 15.6%, 21.3%, and 18.9%, respectively. The energy at failure of the modified scarf adhesive joints with multiwalled carbon nanotubes was improved by 15.2% and 16.4% respectively at 25 ℃ and 50 ℃. At test temperature of 75 ℃, the scarf adhesive joints have hysteresis load–displacement behavior and energy–time curve with rebound energy of 35% and absorbed (damage) energy of 65%. The residual flexural strength of the modified and unmodified scarf adhesive joints is 98.2% and 86.1% respectively, while their residual moduli have remarkable decrease to 71.7% and 81.3%.

Effect of superelastic shape memory alloy wires on the impact behavior of carbon fiber reinforced in situ polymerized poly(butylene terephthalate) composites

2011 ◽  
Vol 65 (5) ◽  
pp. 863-865 ◽  
Author(s):  
J. Aurrekoetxea ◽  
J. Zurbitu ◽  
I. Ortiz de Mendibil ◽  
A. Agirregomezkorta ◽  
M. Sánchez-Soto ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Impact Behavior ◽  
Fiber Reinforced ◽  
Butylene Terephthalate ◽  
Carbon Fiber Reinforced ◽  
The Impact
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