Stiffness Degradation and the Fatigue Behavior of Low-flow Carbon Fiber Sheet Molding Compounds

2020 ◽  
Author(s):  
PHILIPP S. STELZER ◽  
THOMAS HEBERTINGER ◽  
VOLKER REISECKER ◽  
JULIA MAIER ◽  
ZOLTÁN MAJOR
Keyword(s):  
Carbon Fiber ◽  
Fatigue Behavior ◽  
Stiffness Degradation ◽  
Low Flow ◽  
Molding Compounds ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

scholarly journals Mechanical characterization of anisotropy on a carbon fiber sheet molding compound composite under quasi-static and fatigue loading

2018 ◽  
Vol 53 (11) ◽  
pp. 1437-1457 ◽  
Author(s):  
C Nony-Davadie ◽  
L Peltier ◽  
Y Chemisky ◽  
B Surowiec ◽  
F Meraghni
Keyword(s):  
Carbon Fiber ◽  
Flow Direction ◽  
Fatigue Behavior ◽  
Fatigue Loading ◽  
Compression Process ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Stiffness Reduction ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

The paper presents an experimental analysis of the anisotropic effects of the structural advanced carbon fiber sheet molding compound composites (AC-SMCs) subjected to quasi-static and fatigue loading. Two configurations of AC-SMC composites (randomly oriented and highly oriented) considering three different orientations (0°, 45°, 90°) with respect to the material thermo-compression flow direction are investigated under quasi-static and fatigue tensile loading. The effects of fibers orientation induced by the thermo-compression process are analyzed in terms of ultimate strength, elastic modulus, and macroscopic damage corresponding to the stiffness reduction, and related to the quasi-static and fatigue behavior. For both loading conditions, the macroscopic damage of AC-SMC randomly oriented exhibits a two-stage evolution without any damage saturation prior to the samples' failure. In addition, the difference between the highly oriented and randomly oriented configurations is pronounced especially for the 45° and 90° orientations. Post-mortem X-ray radiography and SEM observations show that damage mechanisms such as microcracks appear between and inside bundles, and their occurrence depends on the sample orientation. Experimental findings are compared with those of an equivalent advanced glass fiber reinforced sheet molding compounds composite. The degree of anisotropy is more pronounced for AC-SMC. Indeed, the dependency of the behavior during the manufacturing process induces orientation. Furthermore, the damage evolutions of the two types of SMCs have displayed different kinetics, especially for the saturation stage which is not observed for the AC-SMC composite.

scholarly journals Thermal Radiation Properties of Carbon Fiber-Sheet.

Netsu Bussei ◽  
1992 ◽  
Vol 6 (2) ◽  
pp. 78-82 ◽  
Author(s):  
Kimio KANAYAMA ◽  
Hiromu BABA ◽  
Kiyonori OZEKI ◽  
Haruki NAKAJIMA
Keyword(s):  
Carbon Fiber ◽  
Thermal Radiation ◽  
Radiation Properties ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

scholarly journals Development of Carbon Fiber Sheet Adhesion Method using Flexible Layer

2003 ◽  
Vol 41 (11) ◽  
pp. 24-30 ◽  
Author(s):  
T. Maeda ◽  
H. Komaki ◽  
K. Tsubouchi ◽  
A. Fujima
Keyword(s):  
Carbon Fiber ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

Electromagnetic Wave Shieding Effectiveness of Carbon Fiber Sheet Coated Ferrite Film by Microwave-Hydrothermal Process

2003 ◽  
Vol 17 (08n09) ◽  
pp. 1235-1241 ◽  
Author(s):  
Ri Ichi Murakami ◽  
Hidetoshi Yamamoto ◽  
Chan Kong Kim ◽  
Cheol Mun Yim ◽  
Yun Hae Kim
Keyword(s):  
Electromagnetic Wave ◽  
Carbon Fiber ◽  
Wireless Lan ◽  
Hydrothermal Process ◽  
Ferrite Film ◽  
Shielding Effectiveness ◽  
Microwave Hydrothermal ◽  
Fiber Sheet ◽  
Coated Carbon ◽  
Carbon Fiber Sheet

The developments of electromagnetic wave shielding materials are strongly required because the malfunction of electronic equipment, mobile phone and wireless LAN avoids. In this study, it was investigated that the electromagnetic shielding effectiveness of carbon fiber sheets were enhanced by the ferrite which was coated by the microwave hydrothermal process. For coated carbon fiber sheet, the effects of ferrite and lamination of carbon fiber textile on the electromagnetic wave shielding effectiveness were discussed. In the range of frequency (100 – 1 GHz), the electromagnetic wave shielding effectiveness was measured by using TEM-Cell. The electromagnetic wave shielding effectiveness was greater for the coated carbon fiber sheets than for the uncoated carbon fiber sheets. When the insulation film was located between two carbon fiber sheets, the electromagnetic wave shielding effectiveness increased.

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