A5101807478- Fiber-reinforced polymer composites
- Mechanical Behavior of Composites
- Natural Fiber Reinforced Composites
- Injection Molding Process and Properties
- Manufacturing Process and Optimization
- Additive Manufacturing and 3D Printing Technologies
- Advanced Optical Imaging Technologies
- Engineering Applied Research
- Brake Systems and Friction Analysis
- Adhesion, Friction, and Surface Interactions
- Tribology and Lubrication Engineering
- Advanced machining processes and optimization
- Gear and Bearing Dynamics Analysis
- Mechanical Engineering and Vibrations Research
- Process Optimization and Integration
- Magneto-Optical Properties and Applications
- High Temperature Alloys and Creep
- Phase-change materials and chalcogenides
- Advanced Sensor Technologies Research
- Tribology and Wear Analysis
- Blind Source Separation Techniques
- Surface Roughness and Optical Measurements
- Interactive and Immersive Displays
- Induction Heating and Inverter Technology
- Electric Motor Design and Analysis
Toray Industries, Inc. (Japan)
2014-2024
Toray (United States)
2015-2021
Tokyo Denki University
2021
Seiko Holdings (Japan)
2017
Tohoku University
1990-2016
Yamagata University
1999-2015
Fujifilm (Japan)
2010-2012
Nissan (United Kingdom)
2003-2008
Fujitsu (United States)
2008
Kobe University
2002
In this study, we determined the strength distribution of high-strength polyacrylonitrile-based carbon fibers different short gauge lengths (~1 mm) using both single-fiber-composite four-point bending test and single-fiber tensile test. We employed bimodal Weibull model to explain experimental data. found that value shape parameter for was higher than long lengths. This implies is governed by two flaw populations. The resin-impregnated fiber bundles predicted on basis in better agreement...
Recent advancements in enhancing the mechanical characteristics of carbon fibers open up new application possibilities for fibre-reinforced plastic (CFRP) composites. Particularly unidirectional CFRPs, which form basal structure CFRP laminates, developing a micromechanics model capable predicting tensile strength CFRPs based on fiber is current aspiration. This study conducted stress distribution analysis around fracture point to predict strengths prepared with five types polyacrylonitrile...
The prediction of tensile strength unidirectional CF/epoxy composites requires appropriately determining the distribution carbon fibers and calculating stress concentrations around fiber breaks. In this study, double-fiber fragmentation tests were performed to investigate concentration factor in adjacent a broken fiber. Simulation results obtained by considering additional due matrix cracks correspond well with breakage behavior observed experiments. Furthermore, using an bimodal Weibull...
The polar magneto-optical Kerr rotation angle ( θ K ) for a polished surface of bulk PtMnSb was measured at 632.8 nm wavelength in high applied magnetic fields up to 15 T. saturation value 1.42° the as-polished state, and it enhanced 1.75° by annealing temperatures higher than 400°C. Simultaneously, became easily saturated, suggesting that anisotropy near decreased due annealing. enhancement decrease are considered be removal structural disorder caused polishing.
Abstract We have successfully developed a quarter‐wave retardation film (QWF) for wide viewing angle 3D liquid crystal displays (3D‐LCDs) that provides high luminance, low crosstalk, color change, and head‐tilt‐angle dependency. It was found the out‐of‐plane (Rth) of QWF in LCD needs to be close 0 nm order improve display properties at an off‐axis position in‐plane (Re) adjusted from 120 130 achieve change with head tilting. adopted coating process making our because its potential control....
Implementing a toroidal CVT, in which driving force is transmitted by traction drives, production vehicle requires knowledge of characteristics under actual operating conditions. A mathematical model was developed to calculate characteristics, taking into account spin and side slip using the rheological parameters measured for fluid cylinder tests. The calculated results obtained with indicate that temperature has significant effect on usage can simultaneously treat viscoelasticity...
Toroidal continuously variable transmissions (CVTs) are being developed with a construction that uses power rollers to improve torque transmission capacity. This paper explains the static roller synchronization mechanism. It makes clear mechanism causing vibrate easily mutually opposite phases. The results of this analysis show application spring effect relative displacement axis in tilt direction is effective preventing vibration.
Plastic optical fiber matrices with squared ends were investigated. Such are particularly required for printing two dimensional code marks by using them as new lithography tools combining light emitting diodes. A large number of fibers a diameter 500 µm packed in an oblong slit jig, and simultaneously transformed into square shapes heating the jig on hotplate. Next, three linear arrays, each composed 10 fibers, simply stacked bound without coating any adhesives and/or opaque films. It was...
The fiber breakage behavior of unidirectional CF/epoxy composite material was estimated taking into account the stress concentration in adjacent fibers resulting from matrix crack around breakages. In analysis double-fibers fragmentation tests, simulation using spring elements model surface corresponds well with experimental results. addition to introduction factor, it is essential for employing bimodal Weibull distribution which narrow strength high region order explain tests. Furthermore,...
A new method is proposed to measure cutting temperature in endmilling, which named measured data rearrangement method. Though the measurement of important understand process, it difficult transient change endmilling by conventional methods. The with thermocouple consists workpiece material and a metal wire inserted workpiece, then at moments are extracted rearranged so that one revolution endmill appears. Measuring experiments carried out under various conditions, influences feed rate speed...
Abstract We have succeeded in the development of an anti‐reflection film “Novel Clear‐AR‐Film” that shows low reflectance(≦0.5%), color neutrality reflected light and wide viewing angle dependency these characteristics. These excellent optical characteristics been realized by unique multi‐layers design highly controlled wetting process. The Novel Clear AR‐Film is suitable for public displays under bright ambient light.
The purpose of this study is to understand the nature one oldest gears used in traditional Japanese clock. Today's gear manufacturing technology Japan came mostly from Europe and America, but we do not know exactly, when how were manufactured for first time Japan. It interesting search history. also exciting tooth profile, precision accuracy gears, materials at that time. So far, there have been some studies performed mechanism clocks/watches, gears. Fortunately a chance investigate watch...