Use experience with a developmental general purpose non-contacting extensometer with high resolution

A Towse*, C Setchell, KD Potter, AB Clarke, JHG Macdonald, MR Wisnom, RD Adams

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)

Abstract

An improved form of video extensometry has been developed using the simple technology of CCD cameras. The system is capable of tracking multiple targets at high speed with sub-pixel accuracy using interpolation algorithms. Output in the form of the (x, y) location of each target is available, ensuring that the applicability of the system is not just for uniaxial testing, but for many other forms of experimental strain analysis and displacement measurement. Examples of the use of the system are included: uniaxial testing of low and high modulus materials, shear strain measurement in adhesive joints and displacement measurement of long span bridges.
Translated title of the contributionUse experience with a developmental general purpose non-contacting extensometer with high resolution
Original languageEnglish
Title of host publicationNontraditional methods of sensing stress, strain and damage in materials and structures, West Conshohocken, Pa, USA, 17 Nov. 1999
EditorsGF Lucas, PC McKeighan, JS Ransom
Place of PublicationW CONSHOHOCKEN
PublisherAmerican Society of Testing and Materials
Pages36 - 51
Number of pages16
Volume2
ISBN (Print)0-8031-2882-7
Publication statusPublished - 2001
EventSymposium on Nontraditional Methods of Sensing Stress, Strain, and Damage in Materials and Structures - KANSAS CITY, Macao
Duration: 17 Nov 1999 → …

Publication series

NameAMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION
PublisherAMERICAN SOCIETY TESTING AND MATERIALS
Volume1323
ISSN (Print)1040-1695

Conference

ConferenceSymposium on Nontraditional Methods of Sensing Stress, Strain, and Damage in Materials and Structures
CountryMacao
Period17/11/99 → …

Bibliographical note

Conference Proceedings/Title of Journal: ASTM Special Technical Publication 1323
Conference Organiser: American Society for Testing and Materials (ASTM)

Keywords

  • extensometry
  • video tracking
  • displacement measurement
  • shear strains
  • tensile testing

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  • Cite this

    Towse, A., Setchell, C., Potter, KD., Clarke, AB., Macdonald, JHG., Wisnom, MR., & Adams, RD. (2001). Use experience with a developmental general purpose non-contacting extensometer with high resolution. In GF. Lucas, PC. McKeighan, & JS. Ransom (Eds.), Nontraditional methods of sensing stress, strain and damage in materials and structures, West Conshohocken, Pa, USA, 17 Nov. 1999 (Vol. 2, pp. 36 - 51). (AMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION; Vol. 1323). American Society of Testing and Materials.