Mechanıcal-Behavıor Of A Tıghtly Woven Carbon-Carbon Composıte

The mechanical properties and failure behavior of a tightly woven carbon-carbon composite were investigated and correlated with microstructural features. The analysis of fracture surfaces and microstructural characterization were accomplished using scanning electron microscopy. The tensile strength, flexural strength, fracture toughness, and failure mechanisms of this composite were determined at elevated temperatures. Strength and fracture toughness of the composite increased in argon, but decreased in air as the temperature increased. Microscopic observations of the fracture surfaces of the broken specimens revealed that the composite failed in a tension/shear mixed mode rather than in pure tension.


OZTURK, A; MOORE, RE (Elsevier BV, 1992-01-01)
The tensile fatigue behaviour of a tightly woven carbon/carbon composite was investigated as a function of stress level. Load-controlled fatigue tests were performed in tension-tension mode with a stress ratio, R, of 0.1 under ambient laboratory conditions. Results of composite behaviour are discussed in terms of the relationship of the stress/strain behaviour to the fatigue life of these composites as well as the effects of applied stress levels. It is shown that these composites exhibit good resistance to...
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Rheological properties of the extruded pastes of various extrusion conditions were investigated by dynamic oscillation and creep-recovery tests. Temperature sweep test showed that the starch gelatinization of non-extruded pastes took place at about 67 degrees C and no gelatinization was observed for the extruded sample. Frequency sweep tests could be represented by a Power law model and the samples showed gel-like behavior since storage modulus was much larger than loss modulus. The creep-recovery data were...
Ternary nanocomposites of low density, high density and linear low density polyethylenes with the compatibilizers E-MA-GMA and E-BA-MAh
Işık Coşkunses, Fatma; Yılmazer, Ülkü; Department of Chemical Engineering (2011)
The effects of polyethylene, (PE), type, compatibilizer type and organoclay type on the morphology, rheological, thermal, and mechanical properties of ternary low density polyethylene (LDPE), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE), matrix nanocomposites were investigated in this study. Ethylene – Methyl acrylate – Glycidyl methacrylate terpolymer (E-MAGMA) and Ethylene – Butyl acrylate- Maleic anhydrate terpolymer (E-BA-MAH) were used as the compatibilizers. The organo...
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Uçar, Egemen; Yılmazer, Ülkü; Department of Polymer Science and Technology (2007)
In this study, the effects of organoclay loading, compatibilizer loading and polyethylene type on the morphology, rheology, thermal properties and mechanical properties of polyethylene/compatibilizer/organoclay nanocomposites were investigated. As compatibilizer, terpolymer of ethylene-methacrylate-glycidyl methacrylate (Lotader® AX8900), as organoclay Cloisite® 15A were used. All samples were prepared by a co-rotating twin screw extruder, followed by injection molding. Considering ternary nanocomposites, h...
Mechanical behavior of low alloy steels with bainitic and bainitic-martensitic structure
Tezgör, Başak; Ögel, Bilgehan; Department of Metallurgical and Materials Engineering (2019)
This study aims to investigate the mechanical behavior of bainitic structures and bainitic-martensitic mixed structures in low alloyed steels. In this study, 51CrV4 and 60SiMn5 steels were used with different heat treatment cycles to get bainitic and bainitic-martensitic mixed structures. The specimens were austenitized at 880°C for 51CrV4 and at 950°C for 60SiMn5. It is followed by quenching in salt bath and isothermal holding at various temperatures above and below Ms temperature. Hardness, tensile and ch...
Citation Formats
A. Öztürk, “Mechanıcal-Behavıor Of A Tıghtly Woven Carbon-Carbon Composıte,” SCIENCE AND ENGINEERING OF COMPOSITE MATERIALS, vol. 4, no. 3, pp. 169–178, 1995, Accessed: 00, 2021. [Online]. Available: