Determination of porosity functions of the plasticity condition of a porous body in simple loading

The paper describes main methods for assessing the deformed state of porous body metal frames developed by different authors based on the analysis of yield conditions and governing equations, using the principle of equivalent strains and stresses, and studying the kinetics of metal strain during pressing. Formulas were derived to determine the components of the powder particle material strain tensor through dyads, as scalar products of the basis vectors of the convected coordinate system at each moment of porous molding strain. The expediency of using the analytical expressions developed to determine the deformed state of the particle material was experimentally substantiated subject to the known displacement vector parameters of representative elements (macrostrains) of porous billets. The applications of well-known analytical expressions were established, and the proposed formulas proved applicable for the deformed state assessment of particle metal during the pressure processing of powder products of different configurations and designing billets with a defined porosity and geometric parameters as a basis for compiling software algorithms for the computer simulation of porous molding hot stamping.

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Features of Determining the Deformed State of a Particle Material during the Hot Stamping of Porous Moldings

Gasanov

Aganov

Sirotin

2021

Russ. J. Non-ferrous Metals

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Determination of porosity functions of the plasticity condition of a porous body in simple loading

Cited by 3 publications

References 1 publication

Study and algorithmization of calculation for the stressed-strained state of a powdered medium under compression by slanted plates

Study and algorithmization of calculation for the stressed-strained state of a powdered medium under compression by slanted plates

Features of determining the deformed state of a particle material during hot stamping of porous moldings

Features of Determining the Deformed State of a Particle Material during the Hot Stamping of Porous Moldings

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