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- W4387372502 abstract "The formation of macroscopic deformation bands constitutes undesired stress fluctuations in the compression of porous metals. This research aimed to reveal the predictability of the formation of deformation bands in porous metals with unidirectional through‐pores. Finite element analyses of compression tests of such porous metals were conducted with the commercial code Abaqus/Standard and Explicit 2018. Three cubic specimens with different L/d (specimen edge length L , pore diameter d ) but with the almost same porosity were prepared, and quasi‐static compression was simulated. The results suggested that the formation of horizontally propagated deformation bands will be suppressed as L/d increases. A path search was performed to predict the location of deformation bands on a graph that represents equivalent plastic strain (PEEQ) distribution in the specimens. It was revealed that horizontally propagated deformation bands at compressive strain e =10.0 pct can be predicted as the path with the largest mean of PEEQ at e =1.0 pct when the following two conditions are met; the minimum PEEQ in the path has to be larger than zero, and the standard deviation of the PEEQ mean in candidate paths has to be sufficiently large. This article is protected by copyright. All rights reserved." @default.
- W4387372502 created "2023-10-06" @default.
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- W4387372502 date "2023-10-04" @default.
- W4387372502 modified "2023-10-16" @default.
- W4387372502 title "Prediction of macroscopic deformation bands in porous metals with unidirectional through‐pores" @default.
- W4387372502 doi "https://doi.org/10.1002/adem.202301001" @default.
- W4387372502 hasPublicationYear "2023" @default.
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