The Experts below are selected from a list of 84 Experts worldwide ranked by ideXlab platform
Genlin Tian - One of the best experts on this subject based on the ideXlab platform.
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tensile properties of moso bamboo phyllostachys pubescens and its components with respect to its fiber Reinforced Composite Structure
Wood Science and Technology, 2010Co-Authors: Zhuoping Shao, Changhua Fang, Shengxia Huang, Genlin TianAbstract:Bamboo is a fiber-Reinforced bio-Composite since its culm wall is mainly composed of parenchymatous ground tissue in which vascular bundles are embedded. In order to analyze the mechanical properties of bamboo as a function of its components, tensile tests were performed on bamboo blocks and the corresponding volume fractions of fiber and parenchymatous ground tissue were measured. More significant linear relationships were found between tensile properties and volume fractions of the bamboo components. The tensile strength and modulus of elasticity of bamboo fiber and parenchymatous tissue were estimated according to the linear equations obtained by regression analysis. The macrographs of fractured bamboo blocks and the micrographs of fracture surfaces obtained by scanning electron microscope were also analyzed. Further tensile tests on separated bamboo fiber bundles were analyzed. Results show that the tensile strength of bamboo fiber obtained from the tests on bamboo blocks was higher than that on separated fiber bundles. This might be due to the interaction between components in bamboo in which parenchymatous ground tissue can pass loads and distribute the stresses loaded on fibers.
Jürgen Eckert - One of the best experts on this subject based on the ideXlab platform.
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Outstanding strengthening behavior and dynamic mechanical properties of in-situ Al–Al3Ni Composites by Cu addition
Composites Part B: Engineering, 2020Co-Authors: Jeong Tae Kim, Viktor Soprunyuk, Niraj Chawake, Yong Hui Zheng, Florian Spieckermann, Sung Hwan Hong, Ki Buem Kim, Jürgen EckertAbstract:Abstract The microStructure, mechanical properties, and dynamic mechanical properties of the various intermetallic-Reinforced in-situ Al–Al3Ni eutectic Composites were investigated for different compositions with increasing Cu content. The microStructure changes from a nanofiber-like Al3Ni-Reinforced Composite Structure to a various intermetallic-Reinforced Composite Structure. Moreover, the addition of Cu induces changes in the phases composing the Composite, especially the kind of intermetallic compounds, such as Al3Ni, Al3NiCu, Al7Ni4Cu, and Al2Cu. According to these microstructural evolutions, the mechanical strength under compressive loading is drastically enhanced from about 200 to 1200 MPa, and a typical strength-ductility tradeoff, e.g., the plasticity is reduced from more than 70% to less than 2% with the strength increase, is also observed. The precipitation behavior which can lead to improving further strengthening was observed employing in-situ TEM, Vickers hardness, and DSC investigations. The damping properties are also improved with increasing Cu content, especially at high-temperatures; but regrettably, the maximum operating temperature is decreased. We will discuss the origin of the enhanced strength and propose a route to obtain Composites with optimized mechanical and damping properties for application in different fields.
Ivo Wieling - One of the best experts on this subject based on the ideXlab platform.
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The C-Tower project – A Composite tower for offshore wind turbines
Energy Procedia, 2017Co-Authors: Tjeerd Van Der Zee, Marten J. De Ruiter, Ivo WielingAbstract:Abstract In this paper the feasibility is demonstrated of replacing the steel tower of an offshore wind turbine by a fibre-Reinforced Composite Structure, with the aim of reducing installation and maintenance costs, and thereby the life cycle cost of the entire turbine. Design considerations regarding tower strength and flexibility, as well as manufacturability considerations, are discussed.
Hak-sung Kim - One of the best experts on this subject based on the ideXlab platform.
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Prediction of the mechanical behavior of fiber-Reinforced Composite Structure considering its shear angle distribution generated during thermo-compression molding process
Composite Structures, 2019Co-Authors: Dug-joong Kim, Jaeyoung Lim, Byeunggun Nam, Hak-sung KimAbstract:Abstract In this study, a combined forming-structural analysis of Composite Structures was performed. Fiber orientation and shear angle changes of the Composite materials during its thermo-compression molding processes were predicted with commercial software PAM-FORM. In addition, the material properties, such as elastic modulus and strength, from the shearing of woven fabrics, were measured. The predicted shear angle changes were transformed and reflected to the structural analysis by a self-developed vector-mapping program. The load-displacement curves of the Composite Structures from the combined forming and structural simulation were compared with the experimental compression and bending test results of hemispherical and U-shaped components, respectively. Finally, it was found that the mechanical behaviors of Composite Structures can be accurately predicted by the developed combined thermo-forming structural analysis method.
Zhuoping Shao - One of the best experts on this subject based on the ideXlab platform.
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tensile properties of moso bamboo phyllostachys pubescens and its components with respect to its fiber Reinforced Composite Structure
Wood Science and Technology, 2010Co-Authors: Zhuoping Shao, Changhua Fang, Shengxia Huang, Genlin TianAbstract:Bamboo is a fiber-Reinforced bio-Composite since its culm wall is mainly composed of parenchymatous ground tissue in which vascular bundles are embedded. In order to analyze the mechanical properties of bamboo as a function of its components, tensile tests were performed on bamboo blocks and the corresponding volume fractions of fiber and parenchymatous ground tissue were measured. More significant linear relationships were found between tensile properties and volume fractions of the bamboo components. The tensile strength and modulus of elasticity of bamboo fiber and parenchymatous tissue were estimated according to the linear equations obtained by regression analysis. The macrographs of fractured bamboo blocks and the micrographs of fracture surfaces obtained by scanning electron microscope were also analyzed. Further tensile tests on separated bamboo fiber bundles were analyzed. Results show that the tensile strength of bamboo fiber obtained from the tests on bamboo blocks was higher than that on separated fiber bundles. This might be due to the interaction between components in bamboo in which parenchymatous ground tissue can pass loads and distribute the stresses loaded on fibers.