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İbrahim Demirci - One of the best experts on this subject based on the ideXlab platform.

  • fracture toughness mode i characterization of sio2 nanoparticle filled basalt epoxy filament wound Composite Ring with split disk test method
    Composites Part B-engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

  • Fracture toughness (Mode I) characterization of SiO2 nanoparticle filled basalt/epoxy filament wound Composite Ring with split-disk test method
    Composites Part B: Engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

Mehmet Turan Demirci - One of the best experts on this subject based on the ideXlab platform.

  • fracture toughness mode i characterization of sio2 nanoparticle filled basalt epoxy filament wound Composite Ring with split disk test method
    Composites Part B-engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

  • Fracture toughness (Mode I) characterization of SiO2 nanoparticle filled basalt/epoxy filament wound Composite Ring with split-disk test method
    Composites Part B: Engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

M Cirino - One of the best experts on this subject based on the ideXlab platform.

  • in situ consolidation for the thermoplastic Composite Ring residual stress state
    Composites Manufacturing, 1991
    Co-Authors: M Cirino, Byron R Pipes
    Abstract:

    Abstract A linear elastic model was developed to predict the state of stress in a thermoplastic Composite Ring duRing fabrication by a winding process. The effect of the winding tension and the processing time-temperature history necessary to obtain consolidation on the state of stress in the Ring were considered. The winding process was modelled as the sequential addition of concentric Composite layers to the mandrel. Consequently variation of the winding tension and consolidation of the material could be performed on a layer-by-layer basis. Both the concentric layers and the mandrel were assumed to be in a state of plane stress. In the analytical model the winding tension was represented by imposing a uniform circumferential stress in the layer along with the corresponding compressive radial stress at the layer-substrate interface. Consolidation was represented by subjecting the layer to an uniform temperature change. The winding tension was shown to be a vehicle through which the residual state of stress in the Ring could be controlled. Layer-by-layer consolidation was shown to reduce the magnitude of the residual stress distributions in the Ring relative to those resulting from a post-winding consolidation process. The properties of the mandrel were also shown to have a significant effect on the generation of stresses in the Ring duRing the fabrication process.

  • In-situ consolidation for the thermoplastic Composite Ring—residual stress state
    Composites Manufacturing, 1991
    Co-Authors: M Cirino, R. Byron Pipes
    Abstract:

    Abstract A linear elastic model was developed to predict the state of stress in a thermoplastic Composite Ring duRing fabrication by a winding process. The effect of the winding tension and the processing time-temperature history necessary to obtain consolidation on the state of stress in the Ring were considered. The winding process was modelled as the sequential addition of concentric Composite layers to the mandrel. Consequently variation of the winding tension and consolidation of the material could be performed on a layer-by-layer basis. Both the concentric layers and the mandrel were assumed to be in a state of plane stress. In the analytical model the winding tension was represented by imposing a uniform circumferential stress in the layer along with the corresponding compressive radial stress at the layer-substrate interface. Consolidation was represented by subjecting the layer to an uniform temperature change. The winding tension was shown to be a vehicle through which the residual state of stress in the Ring could be controlled. Layer-by-layer consolidation was shown to reduce the magnitude of the residual stress distributions in the Ring relative to those resulting from a post-winding consolidation process. The properties of the mandrel were also shown to have a significant effect on the generation of stresses in the Ring duRing the fabrication process.

Ahmet Avci - One of the best experts on this subject based on the ideXlab platform.

  • fracture toughness mode i characterization of sio2 nanoparticle filled basalt epoxy filament wound Composite Ring with split disk test method
    Composites Part B-engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

  • Fracture toughness (Mode I) characterization of SiO2 nanoparticle filled basalt/epoxy filament wound Composite Ring with split-disk test method
    Composites Part B: Engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

Ahmet Akdemir - One of the best experts on this subject based on the ideXlab platform.

  • fracture toughness mode i characterization of sio2 nanoparticle filled basalt epoxy filament wound Composite Ring with split disk test method
    Composites Part B-engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.

  • Fracture toughness (Mode I) characterization of SiO2 nanoparticle filled basalt/epoxy filament wound Composite Ring with split-disk test method
    Composites Part B: Engineering, 2017
    Co-Authors: Mehmet Turan Demirci, Necmettin Tarakcioglu, Ahmet Avci, Ahmet Akdemir, İbrahim Demirci
    Abstract:

    Abstract Matrix cracking which is the major initial form of damage in fiber reinforced polymer Composites plays significant role in determining the fracture toughness. The fast crack propagation in polymer matrix causes to decrease the fracture toughness of fiber reinforced polymer (FRP) Composite. In order to retard the fast crack propagation in polymer matrix and provide to increase of the fracture toughness of FRP Composite, the polymer matrix of FRP Composite is modified by filling the different kinds of nanoparticles. In such a way, the crack propagation leads to retard and dissipate the stress concentration affected to form the fiber cracks along of fibers in Composite structure. In this study, basalt fiber was used as reinforcement material in ±[55]6 filament wound Ring Composite for creating the alternative to carbon, kevlar and glass fibers, to contribute to the research studies and literature. SiO2 nanoparticles that provides to form the effects of fracture toughness mechanism based on the effect of retarding crack propagation were filled into epoxy matrix to increase the mechanical properties and fracture toughness of ±[55]6 filament wound BFR/Epoxy Ring Composite. The split-disk tensile tests of single edge notched and un-notched ±[55]6 filament wound BFR/Epoxy Ring Composite specimens were conducted to determine the mechanical properties and mode I fracture toughness. SiO2 nanoparticle addition into epoxy matrix of ±[55]6 filament wound BFR/Epoxy Ring Composites has given the results of hoop tensile stress within the range of 27.7–30.3%. The fracture toughness of Composite Ring specimen was specified by ASTM E 399-12E3 by adapting to the directed mode I crack propagation and compared with each other. An effective increase in mode I fracture toughness of 43%–50% was obtained at 4 wt% addition level of SiO2 nanoparticles. The crack branching in epoxy matrix provided by SiO2 nanoparticle, matrix cracking, debonding, delamination and fiber breakage failures has been observed via microscope and SEM analysis.