Subsurface deformation in surface mechanical attrition processes

Zhiyu Wang, Saurabh Basu, Christopher Saldana

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A modified expanding cavity model (M-ECM) is developed to describe subsurface deformation for strain-hardening materials loaded in unit deformation configurations occurring in surface mechanical attrition. The predictive results of this model are validated by comparison with unit deformation experiments in a model material, oxygen free high conductivity copper, using a custom designed plane strain deformation setup. Subsurface displacement and strain fields are characterized using in-situ digital image correlation. It is shown that conventional analytical models used to describe plastic response in strain-hardening metals are not able to predict important characteristics of the morphology of the plastic zone, including evolution of the dead metal zone (DMZ), especially at large plastic depths. The M-ECM developed in the present study provides an accurate prediction of the strain distribution obtained in experiment and is of utility as a component in multi-stage process models of the final surface state in surface mechanical attrition.

Original languageEnglish (US)
Title of host publicationMaterials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791856833
DOIs
StatePublished - Jan 1 2015
EventASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015 - Charlotte, United States
Duration: Jun 8 2015Jun 12 2015

Publication series

NameASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015
Volume2

Other

OtherASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015
CountryUnited States
CityCharlotte
Period6/8/156/12/15

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

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    Wang, Z., Basu, S., & Saldana, C. (2015). Subsurface deformation in surface mechanical attrition processes. In Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing (ASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015; Vol. 2). American Society of Mechanical Engineers. https://doi.org/10.1115/MSEC20159476