Experimental and numerical investigations on compressive properties of porous twisted wire materials |
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| Authors: | Fei Wu Liuyang Duan Zhiyu Xiao |
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| Affiliation: | 1. School of Materials and Energy, Guangdong University of Technology, Guangzhou, China;2. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, China |
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| Abstract: | Wire diameter, sintering parameter, and porosity have great influences on porous structures and compressive properties of the stainless steel porous twisted wire materials with 30–92% porosities. Finer wires, higher sintering temperature, and longer sintering time will lead to narrower pore-size distributions, more compact porous structures, and stronger compressive yield strength. A random pore model and a twisted wire framework model are put forward to simulate the compressive process. The compressive deformation mechanism is a continuous densification process. The simulated and experimental stress-strain curves all exhibit elastic stage, plastic yield platform stage, and final densification stage. |
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| Keywords: | Porous twisted wire materials pore size distributions compressive properties random pore model twisted wire framework model |
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