Development of novel methods for compensation of stress-strain curves

Yun Ping Li; Emi Onodera; Hiroaki Matsumoto; Yuichiro Koizumi; Shu Yu; Akihiko Chiba

doi:10.2355/isijinternational.51.782

Development of novel methods for compensation of stress-strain curves

Yun Ping Li, Emi Onodera, Hiroaki Matsumoto, Yuichiro Koizumi, Shu Yu, Akihiko Chiba

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

In this study, we analyze in detail the stress variation due to friction between the top surface of a cylindrical sample and the anvil surface by carrying out FEM analysis. We propose pragmatic and simple approaches to compensate the stress-strain curve for both Rastegaev-geometry samples and arbitrary cylindrical samples. By using these equations, the compensation process becomes easy and convenient, and the compensated flow stresses are reliable for the compression process of 5065B aluminum alloy.

Original language	English
Pages (from-to)	782-787
Number of pages	6
Journal	Isij International
Volume	51
Issue number	5
DOIs	https://doi.org/10.2355/isijinternational.51.782
Publication status	Published - 2011 May 13

Keywords

Finite element analysis
Friction coefficient
Friction correction
Hot forging process
Simulation

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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AU - Li, Yun Ping

AU - Onodera, Emi

AU - Matsumoto, Hiroaki

AU - Koizumi, Yuichiro

AU - Yu, Shu

AU - Chiba, Akihiko

PY - 2011/5/13

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AB - In this study, we analyze in detail the stress variation due to friction between the top surface of a cylindrical sample and the anvil surface by carrying out FEM analysis. We propose pragmatic and simple approaches to compensate the stress-strain curve for both Rastegaev-geometry samples and arbitrary cylindrical samples. By using these equations, the compensation process becomes easy and convenient, and the compensated flow stresses are reliable for the compression process of 5065B aluminum alloy.

KW - Finite element analysis

KW - Friction coefficient

KW - Friction correction

KW - Hot forging process

KW - Simulation

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