Properties and failure behavior of hybrid wire mesh/carbon fiber reinforced thermoplastic composites under quasi-static tensile load

2015 ◽  
Vol 66 ◽  
pp. 429-436 ◽  
Author(s):  
H. Hasselbruch ◽  
A. von Hehl ◽  
H.-W. Zoch
Keyword(s):  
Carbon Fiber ◽  
Tensile Load ◽  
Wire Mesh ◽  
Thermoplastic Composites ◽  
Failure Behavior ◽  
Fiber Reinforced ◽  
Static Tensile ◽  
Carbon Fiber Reinforced

Time to failure modeling of carbon fiber reinforced polymer composites subject to simultaneous tension and one-sided heat flux

2018 ◽  
Vol 52 (18) ◽  
pp. 2503-2514 ◽  
Author(s):  
D Swanson ◽  
J Wolfrum
Keyword(s):  
Heat Flux ◽  
Carbon Fiber ◽  
Tensile Load ◽  
Combined Loading ◽  
Fiber Reinforced Polymers ◽  
Time To Failure ◽  
Fiber Reinforced ◽  
Mechanical Loads ◽  
Failure Times ◽  
Carbon Fiber Reinforced

This study focuses on observing and analyzing the time to failure of carbon fiber reinforced polymers subject to mechanical loading and one-sided heat flux simulating fire damage. The purpose of this investigation is to understand the rate of thermal degradation and mechanical property loss from fire exposure, resulting in catastrophic failure under simultaneous tensile loading. Composite samples of varying thicknesses and layup patterns are subject to a constant tensile load below the ultimate strength of the material. A thermal load is applied to one side by an infrared band heater, emitting a constant heat flux. The time to failure is monitored to determine how long the material can withstand this combined loading condition. A consistent trend is observed for various heat flux settings. High mechanical loads contribute to a shorter time to failure, and low mechanical loads contribute to a longer time to failure. Similarly, higher heat flux settings result in shorter failure times, and lower heat flux settings result in longer failure times. Temperature profiles are created based on heat flux exposure time and position through the sample thickness, establishing failure criteria for different loading conditions. The resulting trends are observed and extrapolated to create a predictive model using an Arrhenius exponential decay function.

scholarly journals Simultaneous load and structural monitoring of a carbon fiber rudder stock: Experimental results from a quasi-static tensile test

2018 ◽  
Vol 30 (2) ◽  
pp. 272-282 ◽  
Author(s):  
Klaus Neuschwander ◽  
Jochen Moll ◽  
Vittorio Memmolo ◽  
Matthias Schmidt ◽  
Marcel Bücker
Keyword(s):  
Carbon Fiber ◽  
Impedance Spectroscopy ◽  
Structural Monitoring ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Electromechanical Impedance ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Static Tensile ◽  
Carbon Fiber Reinforced

Carbon-fiber-reinforced plastics are widely used in lightweight marine structures due to their high strength and superior fatigue behavior. In this article, we will present an innovative methodology for simultaneous load and structural monitoring of a carbon-fiber-reinforced plastic rudder stock as part of a big commercial vessel. Experimental results are presented here from a quasi-static tensile test in which the load monitoring is performed using embedded strain sensors. Structural monitoring is based on high-frequency electromechanical impedance spectroscopy combined with dedicated signal processing and surface-mounted piezoelectric transducers. We have achieved the following results: (1) the demonstration of a hybrid monitoring system including load and structural monitoring, (2) successful embedding of strain gauges during composite manufacturing of the carbon-fiber-reinforced plastic rudder stock, (3) development of instrumentation hardware for multichannel electromechanical impedance measurements, and (4) successful damage detection by means of electromechanical impedance spectroscopy in thick carbon-fiber-reinforced plastic rudder stock samples exploiting strain data.

Designing a Production-Ready Ultra-Lightweight Carbon Fiber Reinforced Thermoplastic Composites Door

2021 ◽  
Author(s):  
Ashir Mittal ◽  
Anmol Kothari ◽  
Sai Aditya Pradeep ◽  
Sushil Savla ◽  
Madhura Limaye ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Thermoplastic Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Postprocessing method-induced mechanical properties of carbon fiber-reinforced thermoplastic composites

2020 ◽  
pp. 089270572094537
Author(s):  
Van-Tho Hoang ◽  
Bo-Seong Kwon ◽  
Jung-Won Sung ◽  
Hyeon-Seok Choe ◽  
Se-Woon Oh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Processing Parameters ◽  
Thermoplastic Composites ◽  
Void Content ◽  
Fiber Reinforced ◽  
Crystallinity Degree ◽  
Automated Fiber Placement ◽  
Carbon Fiber Reinforced

Promising carbon fiber-reinforced thermoplastic (CF/polyetherketoneketone (PEKK)) composites were fabricated by the state-of-the-art technology known as “Automated Fiber Placement.” The mechanical properties of CF/PEKK were evaluated for four different postprocessing methods: in situ consolidation, annealing, vacuum bag only (VBO), and hot press (HP). The evaluation was performed by narrowing down the relevant processing parameters (temperature and layup speed). Furthermore, the void content and crystallinity of CF/PEKK were measured to determine the effect of these postprocessing processes. The HP process resulted in the best quality with the highest interlaminar shear strength, highest crystallinity degree, and lowest void content. The second most effective method was VBO, and annealing also realized an improvement compared with in situ consolidation. The correlation between the postprocessing method and the void content and crystallinity degree was also discussed.

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