Research on the Drilling Temperature Field Model of the Unidirectional Carbon Fiber Epoxy Composites

2012 ◽  
Vol 565 ◽  
pp. 478-483 ◽  
Author(s):  
Guo Ping Zhu ◽  
Yong Jie Bao ◽  
Hang Gao
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
Carbon Fiber ◽  
Field Model ◽  
Epoxy Composites ◽  
Drilling Temperature ◽  
Temperature Field Model ◽  
The Finite Difference Method ◽  
Carbon Fiber Epoxy

Heat is easy to aggregate during drilling carbon fiber epoxy (C/E) composites because of the materials’ anisotropy and the low thermal conductivity. It can result in a high temperature gradient which has a significant effect on the quality of the workpiece and the tool wear. In this paper, a drilling temperature field model of the unidirectional composites is developed. Based on the finite difference method (FDM) the temperature distribution and changes are simulated. Experiments of measuring the drilling temperature at the exit of the hole are carried out, and the results show that the temperature distribution is in agreement with the temperature field model.

Investigation on temperature field of unidirectional carbon fiber/epoxy composites during drilling process

2019 ◽  
Vol 26 (10) ◽  
pp. 2717-2728
Author(s):  
Yong-jie Bao ◽  
Yi-qi Wang ◽  
Hang Gao ◽  
Xue-shu Liu ◽  
Yi-ni Zhang
Keyword(s):  
Temperature Field ◽  
Carbon Fiber ◽  
Epoxy Composites ◽  
Drilling Process ◽  
Carbon Fiber Epoxy

scholarly journals Guidelines on calculation of the concrete thermal treatment modes

2018 ◽  
Vol 178 ◽  
pp. 09007 ◽  
Author(s):  
Sergey Novikov ◽  
Boris Zhadanovsky ◽  
Sergey Sinenko
Keyword(s):  
Temperature Field ◽  
Thermal Treatment ◽  
Field Model ◽  
Computer Software ◽  
Energy Costs ◽  
Treatment Mode ◽  
Maximum Reduction ◽  
Temperature Field Model ◽  
Minimum Heat

The article provides guidelines on calculation of the cast-inplace reinforced concrete thermal treatment modes: the problem of thermal treatment mode by setting the mathematical temperature field model in the hardening concrete has been solved; model equation which allows calculating the temperature field in the hardening concrete structure using computer software has been solved. These data allow to achieve the high quality of concrete at minimum heat treatment duration and the maximum reduction of energy costs, while minimizing experimental calculations.

Explaining Spring-In in Filament Wound Carbon Fiber/Epoxy Composites

2000 ◽  
Vol 34 (13) ◽  
pp. 1216-1239
Author(s):  
JEFF M. GANLEY ◽  
ARUP K. MAJI ◽  
STEVEN HUYBRECHTS
Keyword(s):  
Carbon Fiber ◽  
Epoxy Composites ◽  
Filament Wound ◽  
Carbon Fiber Epoxy

scholarly journals Relative Entropy Method Applied for the Fatigue Life Distribution of Carbon Fiber/Epoxy Composites

Entropy ◽  
2021 ◽  
Vol 23 (2) ◽  
pp. 224
Author(s):  
Changsheng Yuan ◽  
Yingjie Liang
Keyword(s):  
Experimental Data ◽  
Carbon Fiber ◽  
Relative Entropy ◽  
Least Squares Method ◽  
Entropy Method ◽  
Epoxy Composites ◽  
Order Moment ◽  
Kolmogorov Smirnov ◽  
Relative Entropy Method ◽  
Carbon Fiber Epoxy

This paper verifies the feasibility of the relative entropy method in selecting the most suitable statistical distribution for the experimental data, which do not follow an exponential distribution. The efficiency of the relative entropy method is tested through the fractional order moment and the logarithmic moment in terms of the experimental data of carbon fiber/epoxy composites with different stress amplitudes. For better usage of the relative entropy method, the efficient range of its application is also studied. The application results show that the relative entropy method is not very fit for choosing the proper distribution for non-exponential random data when the heavy tail trait of the experimental data is emphasized. It is not consistent with the Kolmogorov–Smirnov test but is consistent with the residual sum of squares in the least squares method whenever it is calculated by the fractional moment or the logarithmic moment. Under different stress amplitudes, the relative entropy method has different performances.

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