Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Kimiyoshi Naito"'
Autor:
Kimiyoshi Naito
Publikováno v:
Results in Materials, Vol 19, Iss , Pp 100424- (2023)
This study investigated the effect of the number of filaments on the tensile properties of high tensile strength polyacrylonitrile-based (T1000GB) and high modulus pitch-based (K13D) carbon fiber epoxy-impregnated bundle composites. In addition, the
Externí odkaz:
https://doaj.org/article/187bd2beba474510900dc756519c416b
Publikováno v:
SN Applied Sciences, Vol 4, Iss 11, Pp 1-13 (2022)
Article highlights Indentation-derived elastic modulus of highly anisotropic fiber is numerically evaluated. The numerical error in the modulus increases with anisotropy index. Acceptable resolution that returns accurate modulus are proposed.
Externí odkaz:
https://doaj.org/article/a9777d2bd8f34dbbb87163825832b40a
Autor:
Kimiyoshi Naito
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract The static and fatigue tensile properties of high-strength polyacrylonitrile (PAN)-based carbon (IMS60) and electronic (E)-class glass (E-glass) hybrid fiber-reinforced epoxy matrix composites (HFRPs) were investigated. The fiber orientation
Externí odkaz:
https://doaj.org/article/e62176bffee0408a88fe93d3129a8b68
Publikováno v:
Journal of Composites Science, Vol 7, Iss 4, p 146 (2023)
Carbon-fiber-reinforced epoxy-matrix composite (CFRP) laminates with thin plies have strong damage-resistance properties compared with standard prepregs. The static and fatigue tensile fracture behavior of cross-ply CFRP laminates with thin plies sho
Externí odkaz:
https://doaj.org/article/f9d13e5049fa424991570cc4fbf0b3f5
Publikováno v:
Polymers, Vol 15, Iss 8, p 1878 (2023)
Second-generation acrylic (SGA) adhesives, possessing high strength and toughness, are applicable in automotive body structures. Few studies have considered the fracture toughness of the SGA adhesives. This study entailed a comparative analysis of th
Externí odkaz:
https://doaj.org/article/2a9253ab602e488ca197bd718dca24ee
Autor:
Minjie Wu, Wenshuang Han, Chun Zhang, Shuo Zhang, Xinyang Zhang, Xinggang Chen, Kimiyoshi Naito, Xiaoyan Yu, Qingxin Zhang
Publikováno v:
Nanomaterials, Vol 12, Iss 22, p 3973 (2022)
High-performance composites with a resin matrix are urgently required for electronic packaging due to their low dielectric constant, outstanding high temperature resistance, excellent corrosion resistance, light weight and easy molding. In this work,
Externí odkaz:
https://doaj.org/article/11400ed89a544892b629c2ba5f488b28
Autor:
Minjie Wu, Kaixiong Yang, Yuanyuan Li, Jianxin Rong, Dianqiu Jia, Zhiyi Jia, Kimiyoshi Naito, Xiaoyan Yu, Qingxin Zhang
Publikováno v:
Polymers, Vol 14, Iss 19, p 4144 (2022)
In this study, a novel phthalonitrile monomer containing a pyridazine ring, 3,6-bis[3-(3,4-dicyanophenoxy)phenoxy]pyridazine (BCPD) with a low melting point (74 °C) and wide processing window (178 °C), was prepared by a nucleophilic substitution re
Externí odkaz:
https://doaj.org/article/63f68a7a8eff4779aa310cee69459738
Publikováno v:
Mechanical Engineering Journal, Vol 7, Iss 4, Pp 19-00599-19-00599 (2020)
With the expansion of use of carbon fiber reinforced plastics (CFRPs), it becomes important to obtain precise knowledge of elastic properties carbon fibers in radial direction as well as axial direction. Although the elastic property in radial direct
Externí odkaz:
https://doaj.org/article/8d16400c91b441a99ef800a88a5317bf
Publikováno v:
Polymers, Vol 13, Iss 18, p 3136 (2021)
Fiber-reinforced polymer (FRP) composites are becoming more frequently adopted as so-called “corrosion-resistant” concrete reinforcement materials due to their excellent mechanical properties and formability. However, their long-term reliability
Externí odkaz:
https://doaj.org/article/1734e35350ed4dbd863bdc8bee4ef2e5
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 6, Iss 4, Pp 157-161 (2016)
We first report a fabrication technique of nanoscale speckle patterns on polymers using broad ion beam milling. The proposed technique is simple and low-cost to produce speckles ranging from dozens of nanometers to less than three micrometers in a la
Externí odkaz:
https://doaj.org/article/c4b606a6d1924d4284a2c07ced046ea2