The Experts below are selected from a list of 1081638 Experts worldwide ranked by ideXlab platform
Ziqiang Zhao - One of the best experts on this subject based on the ideXlab platform.
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The effect of hardness distribution by carburizing on the elastic-plastic contact performance
Tribology International, 2016Co-Authors: Shengguang Zhang, Haibo Zhang, Wenzhong Wang, Ziqiang ZhaoAbstract:Abstract This paper aims to investigate the effect of the hardness distribution by carburizing on the contact behaviors. A developed elastic–plastic contact model based on a Semi-Analytical Method is used. The effect of hardness on elastic–plastic contact behaviors is considered by means of the linear hardness-yielding strength relationship. Different hardness distributions are considered to simulate the possible results obtained in heat treatment. The results show that the hardness distribution and carburizing time/case depth have different influence on the plastic strain under different loads and roughness, while its influence on the maximum contact pressure and contact area ratio is very limited.
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the effect of surface roughness characteristics on the elastic plastic contact performance
Tribology International, 2014Co-Authors: Shengguang Zhang, Wenzhong Wang, Ziqiang ZhaoAbstract:Abstract Rough surface elastic–plastic contact performance is investigated in this paper. First, a computer program is developed to generate rough surfaces with given parameters; Then, the elastic–plastic contact model is developed based on minimization of complementary energy and Semi-Analytical Method; finally, contact analysis for rough surfaces are conducted. The results show that kurtosis and skewness have significant effects on the contact performance under light-medium load; for heavy load condition and small skewness, the contact characteristic parameters change slightly along with kurtosis. Comparing with elastic contact, the low contact pressure and large contact area are predicted in elastic–plastic contacts.
Xiansheng Gong - One of the best experts on this subject based on the ideXlab platform.
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full contact analysis of wire rope strand subjected to varying loads based on semi analytical Method
International Journal of Solids and Structures, 2017Co-Authors: Yuanpei Chen, Fanming Meng, Xiansheng GongAbstract:Abstract A wire rope is often subjected to a varying axial tensile force or torsional moment, resulting in its unstable performances. However, this problem has not been studied to date due to the lack of a scheme effectively determining the interwire contact status. For this, an interwire full contact model considering different contact statuses is established based on contact mechanics and thin rods theory. Then the model is solved with the Semi-Analytical Method (SAM), into which the conjugate gradient Method (CGM) and fast Fourier transform (FFT) are employed for analyzing the contact behavior. With the above contact dealing, the full contact performances are achieved for the core-wire contact, the wire-wire contact and the coupled contact statuses of the strand subjected to varying axial loads. And it is found that the interwire contact status of the strand may change with the varying loads, resulting in the unstable distributions of the interwire contact pressure and deformation. Meanwhile, the validity of the proposed full contact model is verified.
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study on effect of inter wire contact on mechanical performance of wire rope strand based on semi analytical Method
International Journal of Mechanical Sciences, 2016Co-Authors: Fanming Meng, Yuanpei Chen, Xiansheng GongAbstract:Abstract The inter-wire contact effect on mechanical performances of a wire rope strand is studied with a new Semi-Analytical Method. The mathematical model of the wire rope strand subjected to axial tension and torsion loads is established first, into which the wire deformation parameters considering the combining effects of Poisson's ratio and inter-wire contact are incorporated. Then this model is solved to achieve the mechanical performances for the wire rope with the Semi-Analytical Method, in which the conjugate gradient Method and fast Fourier transform are simultaneously used for calculating the contact deformation, contact pressure and inside stress of the wires caused by the inter-wire contact. The numerical results show that the proposed Method is accurate and efficient in evaluating the inter-wire contact behavior. And the large axial load results in the large contact pressure and deformation. The contact deformation results in a reduction in the stiffness of the strand with a lay angle larger than 20°.
Shengguang Zhang - One of the best experts on this subject based on the ideXlab platform.
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The effect of hardness distribution by carburizing on the elastic-plastic contact performance
Tribology International, 2016Co-Authors: Shengguang Zhang, Haibo Zhang, Wenzhong Wang, Ziqiang ZhaoAbstract:Abstract This paper aims to investigate the effect of the hardness distribution by carburizing on the contact behaviors. A developed elastic–plastic contact model based on a Semi-Analytical Method is used. The effect of hardness on elastic–plastic contact behaviors is considered by means of the linear hardness-yielding strength relationship. Different hardness distributions are considered to simulate the possible results obtained in heat treatment. The results show that the hardness distribution and carburizing time/case depth have different influence on the plastic strain under different loads and roughness, while its influence on the maximum contact pressure and contact area ratio is very limited.
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the effect of surface roughness characteristics on the elastic plastic contact performance
Tribology International, 2014Co-Authors: Shengguang Zhang, Wenzhong Wang, Ziqiang ZhaoAbstract:Abstract Rough surface elastic–plastic contact performance is investigated in this paper. First, a computer program is developed to generate rough surfaces with given parameters; Then, the elastic–plastic contact model is developed based on minimization of complementary energy and Semi-Analytical Method; finally, contact analysis for rough surfaces are conducted. The results show that kurtosis and skewness have significant effects on the contact performance under light-medium load; for heavy load condition and small skewness, the contact characteristic parameters change slightly along with kurtosis. Comparing with elastic contact, the low contact pressure and large contact area are predicted in elastic–plastic contacts.
Wenzhong Wang - One of the best experts on this subject based on the ideXlab platform.
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The effect of hardness distribution by carburizing on the elastic-plastic contact performance
Tribology International, 2016Co-Authors: Shengguang Zhang, Haibo Zhang, Wenzhong Wang, Ziqiang ZhaoAbstract:Abstract This paper aims to investigate the effect of the hardness distribution by carburizing on the contact behaviors. A developed elastic–plastic contact model based on a Semi-Analytical Method is used. The effect of hardness on elastic–plastic contact behaviors is considered by means of the linear hardness-yielding strength relationship. Different hardness distributions are considered to simulate the possible results obtained in heat treatment. The results show that the hardness distribution and carburizing time/case depth have different influence on the plastic strain under different loads and roughness, while its influence on the maximum contact pressure and contact area ratio is very limited.
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the effect of surface roughness characteristics on the elastic plastic contact performance
Tribology International, 2014Co-Authors: Shengguang Zhang, Wenzhong Wang, Ziqiang ZhaoAbstract:Abstract Rough surface elastic–plastic contact performance is investigated in this paper. First, a computer program is developed to generate rough surfaces with given parameters; Then, the elastic–plastic contact model is developed based on minimization of complementary energy and Semi-Analytical Method; finally, contact analysis for rough surfaces are conducted. The results show that kurtosis and skewness have significant effects on the contact performance under light-medium load; for heavy load condition and small skewness, the contact characteristic parameters change slightly along with kurtosis. Comparing with elastic contact, the low contact pressure and large contact area are predicted in elastic–plastic contacts.
Fanming Meng - One of the best experts on this subject based on the ideXlab platform.
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full contact analysis of wire rope strand subjected to varying loads based on semi analytical Method
International Journal of Solids and Structures, 2017Co-Authors: Yuanpei Chen, Fanming Meng, Xiansheng GongAbstract:Abstract A wire rope is often subjected to a varying axial tensile force or torsional moment, resulting in its unstable performances. However, this problem has not been studied to date due to the lack of a scheme effectively determining the interwire contact status. For this, an interwire full contact model considering different contact statuses is established based on contact mechanics and thin rods theory. Then the model is solved with the Semi-Analytical Method (SAM), into which the conjugate gradient Method (CGM) and fast Fourier transform (FFT) are employed for analyzing the contact behavior. With the above contact dealing, the full contact performances are achieved for the core-wire contact, the wire-wire contact and the coupled contact statuses of the strand subjected to varying axial loads. And it is found that the interwire contact status of the strand may change with the varying loads, resulting in the unstable distributions of the interwire contact pressure and deformation. Meanwhile, the validity of the proposed full contact model is verified.
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study on effect of inter wire contact on mechanical performance of wire rope strand based on semi analytical Method
International Journal of Mechanical Sciences, 2016Co-Authors: Fanming Meng, Yuanpei Chen, Xiansheng GongAbstract:Abstract The inter-wire contact effect on mechanical performances of a wire rope strand is studied with a new Semi-Analytical Method. The mathematical model of the wire rope strand subjected to axial tension and torsion loads is established first, into which the wire deformation parameters considering the combining effects of Poisson's ratio and inter-wire contact are incorporated. Then this model is solved to achieve the mechanical performances for the wire rope with the Semi-Analytical Method, in which the conjugate gradient Method and fast Fourier transform are simultaneously used for calculating the contact deformation, contact pressure and inside stress of the wires caused by the inter-wire contact. The numerical results show that the proposed Method is accurate and efficient in evaluating the inter-wire contact behavior. And the large axial load results in the large contact pressure and deformation. The contact deformation results in a reduction in the stiffness of the strand with a lay angle larger than 20°.
