Search Results - "Ogasawara, Toshio"

Coupled thermal–electrical analysis for carbon fiber/epoxy composites exposed to simulated lightning current by Ogasawara, Toshio, Hirano, Yoshiyasu, Yoshimura, Akinori

“…A coupled thermal–electrical analysis of carbon fiber reinforced polymer composites (CFRP) exposed to simulated lightning current was conducted in order to…”
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Effects of ply thickness and 0°-layer ratio on failure mechanism of open-hole and filled-hole tensile tests of thin-ply composite laminates by Aoki, Ryoma, Higuchi, Ryo, Yokozeki, Tomohiro, Aoki, Kazuyuki, Uchiyama, Shigekazu, Ogasawara, Toshio

“…Thin-ply technology provides increasing possibilities for composite structures, expanding the design space for ply thickness and laminate layup. This study…”
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Numerical analysis of face sheet buckling for a CFRP/Nomex honeycomb sandwich panel subjected to bending loading by Oiwa, Mae, Ogasawara, Toshio, Yoshinaga, Hajime, Oguri, Tsuyoshi, Aoki, Takahira

“…The objective of this study is to establish a bending strength prediction method for a thin CFRP face sheet/Nomex honeycomb sandwich panel, for which the…”
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Negative axial thermal expansion coefficient of carbon nanotubes: Experimental determination based on measurements of coefficient of thermal expansion for aligned carbon nanotube reinforced epoxy composites by Shirasu, Keiichi, Yamamoto, Go, Tamaki, Itaru, Ogasawara, Toshio, Shimamura, Yoshinobu, Inoue, Yoku, Hashida, Toshiyuki

“…Due to their superior material properties, carbon nanotubes (CNTs) have many potential applications such as actuators, composites and electronic components…”
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Potential use of CNTs for production of zero thermal expansion coefficient composite materials: An experimental evaluation of axial thermal expansion coefficient of CNTs using a combination of thermal expansion and uniaxial tensile tests by Shirasu, Keiichi, Nakamura, Akihiro, Yamamoto, Go, Ogasawara, Toshio, Shimamura, Yoshinobu, Inoue, Yoku, Hashida, Toshiyuki

“…Feasibility of using multi-walled carbon nanotubes (MWCNTs) for the control of coefficients of thermal expansion (CTEs) of composite materials was evaluated,…”
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In situ optical observation of damage and failure process in adhesively bonded CFRP joints under mixed-mode loading by Oshima, Sota, Mikami, Tomoisa, Yoshimura, Akinori, Hirano, Yoshiyasu, Ogasawara, Toshio

“…The effects of mode mixity on microscopic damage and failure process in adhesively bonded carbon fiber reinforced plastic (CFRP) joints were studied by in situ…”
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Evaluation of thermosetting resin curing using a tilted fiber Bragg grating by Hirota, Itsuhiko, Takeda, Shin-ichi, Ogasawara, Toshio

“…The strain, temperature and refractive index of a material can be evaluated from the Bragg and cladding modes in the transmission spectra of tilted fiber Bragg…”
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Damage-mechanics mesoscale modeling of composite laminates considering diffuse and discrete ply damages: Effects of ply thickness by Aoki, Ryoma, Higuchi, Ryo, Yokozeki, Tomohiro, Aoki, Kazuyuki, Uchiyama, Shigekazu, Ogasawara, Toshio

“…Thin-ply composites are gaining significant attention owing to their high damage resistance and their ability to enhance design flexibility in a composite…”
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Simultaneous measurement of strain and temperature using a tilted fiber Bragg grating by Takeda, Shin-ichi, Sato, Masashi, Ogasawara, Toshio

“…•Tilted fiber Bragg grating (TFBG) enables simultaneous measurement of strain and temperature.•Evaluating the effects of strain and temperature on TFBG…”
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Effects of cyclic tensile loading on the rupture behavior of orthogonal 3-D woven SiC fiber/SiC matrix composites at elevated temperatures in air by Ikarashi, Yoshito, Ogasawara, Toshio, Aoki, Takuya

“…This study examined the rupture mechanisms of an orthogonal 3D woven SiC fiber/BN interface/SiC matrix composite under combination of constant and cyclic…”
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Experimental and numerical studies of the open-hole compressive strength of thin-ply CFRP laminates by Takamoto, Kota, Ogasawara, Toshio, Kodama, Hiroki, Mikami, Tomoisa, Oshima, Sota, Aoki, Kazuyuki, Higuchi, Ryo, Yokozeki, Tomohiro

“…Thin prepregs with thickness of less than 0.06 mm support flexible lamination design because it is possible to apply various stacking sequences. The objective…”
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Effect of through-thickness electrical conductivity of CFRPs on lightning strike damages by Kumar, Vipin, Yokozeki, Tomohiro, Okada, Takao, Hirano, Yoshiyasu, Goto, Teruya, Takahashi, Tatsuhiro, Ogasawara, Toshio

“…Making carbon fiber reinforced plastics electrically conductive is an amended solution to the current lightning strike protection technology. However,…”
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Polyaniline-based all-polymeric adhesive layer: An effective lightning strike protection technology for high residual mechanical strength of CFRPs by Kumar, Vipin, Yokozeki, Tomohiro, Okada, Takao, Hirano, Yoshiyasu, Goto, Teruya, Takahashi, Tatsuhiro, Hassen, Ahmed Arabi, Ogasawara, Toshio

“…Carbon fiber reinforced plastics (CFRPs) are vulnerable to lightning strikes due to their low electrical conductivity and low heat resistance. A lightning…”
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Direct comparison between monofilament and multifilament tow testing for evaluating the tensile strength distribution of SiC fibers by Ikarashi, Yoshito, Ogasawara, Toshio, Okuizumi, Shin-ichi, Aoki, Takuya, Davies, Ian J., Lamon, Jacques

“…•Multifilament test results almost correspond to monofilament test results.•Fiber diameter variation does not affect multifilament test results…”
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Experimental characterization of strength and damage resistance properties of thin-ply carbon fiber/toughened epoxy laminates by Yokozeki, Tomohiro, Aoki, Yuichiro, Ogasawara, Toshio

“…Composite laminates manufactured from thin-ply prepregs are expected to have superior damage resistance properties compared to those from standard prepregs…”
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Micromechanical model of time-dependent damage and deformation behavior for an orthogonal 3D-woven SiC/SiC composite at elevated temperature in vacuum by Ikarashi, Yoshito, Ogasawara, Toshio, Aoki, Takuya

“…This paper presents a micromechanical model to predict the time-dependent damage and deformation behavior of an orthogonal 3-D woven SiC fiber/BN interface/SiC…”
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Development and characterization of CFRP using a polyaniline-based conductive thermoset matrix by Yokozeki, Tomohiro, Goto, Teruya, Takahashi, Tatsuhiro, Qian, Danna, Itou, Shouji, Hirano, Yoshiyasu, Ishida, Yuichi, Ishibashi, Masaru, Ogasawara, Toshio

“…In this work, we describe the development of carbon fiber reinforced plastics (CFRP) using a polyaniline (PANI)-based electrically conductive thermoset matrix…”
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Mechanical properties of carbon fiber/fullerene-dispersed epoxy composites by Ogasawara, Toshio, Ishida, Yuichi, Kasai, Tetsuo

“…This study examined the effect of fullerene dispersion on the mechanical properties of carbon-fiber reinforced epoxy matrix composites (CFRPs). Mechanical…”
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I-V characteristics and temperature response of unidirectional CFRP exposed to simulated lightning current in the fiber direction by Kamiyama, Shintaro, Hirano, Yoshiyasu, Okada, Takao, Sonehara, Takeo, Ogasawara, Toshio

“…This study examined the I-V characteristics and temperature response of unidirectional CFRP exposed to simulated lightning current by performing direct…”
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Development of large-movements and high-force electrothermal bimorph actuators based on aligned carbon nanotube reinforced epoxy composites by Shirasu, Keiichi, Yamamoto, Go, Inoue, Yoku, Ogasawara, Toshio, Shimamura, Yoshinobu, Hashida, Toshiyuki

“…[Display omitted] •Electrothermal bimorph actuators comprising an aligned MWCNT/epoxy composite and aluminum foil were fabricated.•The bending displacement and…”
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