Measurement of residual stress by coring and material testing of minute test pieces

Tomohiro Ninomiya, Yasuo Suzuki, Kunitomo Sugiura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this research, the distortion resulting from stress relaxation was measured by opening a core with strain gauge, which was attached to several places of a full-scale steel beam, and the residual stress was calculated from the measured strains. This research summarized and compared the calculated residual stress distribution. In the material testing using the minute test piece for grasping mechanical characteristics, tensile test and Charpy impact test were conducted. In these each two experiments, two kinds of minute test pieces with different dimensions and joining method that assumed to be manufactured by a core about 20 millimeter in diameter were used. In tensile testing, this study shows that the reduction in board thickness direction, shape of the specimen and initial strain affect the strength and Young's modules. In Charpy impact testing, this study shows that it is possible to obtain correct Charpy absorbed energy by using welded specimen.

Original languageEnglish
Title of host publicationISEC 2015 - 8th International Structural Engineering and Construction Conference
Subtitle of host publicationImplementing Innovative Ideas in Structural Engineering and Project Management
EditorsYixia X. Zhang, S. Yazdani, Amarjit Singh, Swapan Saha
PublisherISEC Press
Pages181-186
Number of pages6
ISBN (Electronic)9780996043717
StatePublished - 2015
Event8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015 - Sydney, Australia
Duration: 2015/11/232015/11/28

Publication series

NameISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management

Conference

Conference8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015
Country/TerritoryAustralia
CitySydney
Period2015/11/232015/11/28

Keywords

  • Charpy impact testing
  • Patch repair method
  • Stop-hole method
  • Tensile testing

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering

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