Laser cutting of carbon fiber reinforced plastic using a 30 kW fiber laser

2015 ◽  
Vol 27 (S2) ◽  
pp. S28001 ◽  
Author(s):  
Dirk Herzog ◽  
Matthias Schmidt-Lehr ◽  
Marten Canisius ◽  
Max Oberlander ◽  
Jan-Philipp Tasche ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Fiber Laser ◽  
Laser Cutting ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Carbon Fiber Reinforced

Laser cutting of carbon fiber-reinforced plastic with an absorber transparent for visible spectrum

2015 ◽  
Vol 27 (3) ◽  
pp. 032003 ◽  
Author(s):  
M. Canisius ◽  
D. Herzog ◽  
M. Schmidt-Lehr ◽  
M. Oberlander ◽  
J. Direnga ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Laser Cutting ◽  
Visible Spectrum ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Carbon Fiber Reinforced

The Effect of Fiber Laser Machining Parameters on Thermal-Affected Zone of Carbon Fiber Reinforced Plastic

2016 ◽  
Vol 1136 ◽  
pp. 377-383
Author(s):  
Hagiwara Yuki ◽  
Katsuhiko Sakai ◽  
Hiroo Shizuka
Keyword(s):  
Carbon Fiber ◽  
Fiber Laser ◽  
Continuous Wave ◽  
Carbon Fiber Reinforced Plastic ◽  
Machining Parameters ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Carbon Fiber Reinforced ◽  
Thermal Affected Zone

This study describes the effects of machining parameters on the thermal affected zone (heat-affected zone; HAZ) of carbon fiber reinforced plastic using fiber laser. The HAZ described in this study was defined as the area where only resin was removed. In three experiments, the HAZ area and the removal shape of carbon fiber were investigated. The study revealed that pulsed laser reduces the HAZ more than continuous-wave laser does, but it causes the swelling of the carbon fiber tip. Furthermore, the HAZ decreased as the scan speed increased, even if the number of scans was increased. In addition, it was found that nitrogen could restrain the HAZ and the swelling of carbon fiber.

scholarly journals Stressing State Analysis of Reinforced Concrete Beam Strengthened by CFRP Sheet with Anchoring Device

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 576
Author(s):  
Liang Luo ◽  
Jie Lai ◽  
Jun Shi ◽  
Guorui Sun ◽  
Jie Huang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Strain Distribution ◽  
Carbon Fiber Reinforced Plastic ◽  
Rc Beams ◽  
Fiber Reinforced ◽  
Strain Distribution Pattern ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Cfrp Sheet ◽  
Carbon Fiber Reinforced

This paper investigates the working performance of reinforcement concrete (RC) beams strengthened by Carbon-Fiber-Reinforced Plastic (CFRP) with different anchoring under bending moment, based on the structural stressing state theory. The measured strain values of concrete and Carbon-Fiber-Reinforced Plastic (CFRP) sheet are modeled as generalized strain energy density (GSED), to characterize the RC beams’ stressing state. Then the Mann–Kendall (M–K) criterion is applied to distinguish the characteristic loads of structural stressing state from the curve, updating the definition of structural failure load. In addition, for tested specimens with middle anchorage and end anchorage, the torsion applied on the anchoring device and the deformation width of anchoring device are respectively set parameters to analyze their effects on the reinforcement performance of CFRP sheet through comparing the strain distribution pattern of CFRP. Finally, in order to further explore the strain distribution of the cross-section and analyze the stressing-state characteristics of the RC beam, the numerical shape function (NSF) method is proposed to reasonably expand the limited strain data. The research results provide a new angle of view to conduct structural analysis and a reference to the improvement of reinforcement effect of CFRP.

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