Non-destructive detection of crack in HDPE plate by nanometric change in surface profile

Naoya Tada, Yoshitaka Matsukawa, Makoto Uchida

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

1 Citation (Scopus)

Abstract

When a mechanical load is given to a cracked material, an undulation appears in surface profile around the crack. The undulation is caused by stress-strain concentration at the crack tip and its release near the crack center. If the load is very small and within the elastic deformation range, the material recovers the original shape after unloading and no damage remains. Therefore, this surface undulation by a small mechanical load can be used for detection of crack on the material surface. In this study, non-destructive crack detection method by nanometric change in surface profile is proposed, and the experiment and related finite element analyses were carried out for notched high-density polyethylene (HDPE) plates. Nonuniform height change by a small mechanical load around the notch on the surface of HDPE plate was measured by a laser scanning microscope. The height change distribution agreed with the analytical result.

Original languageEnglish
Title of host publicationASME 2013 Pressure Vessels and Piping Conference, PVP 2013
DOIs
Publication statusPublished - Dec 1 2013
EventASME 2013 Pressure Vessels and Piping Conference, PVP 2013 - Paris, France
Duration: Jul 14 2013Jul 18 2013

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume5
ISSN (Print)0277-027X

Other

OtherASME 2013 Pressure Vessels and Piping Conference, PVP 2013
CountryFrance
CityParis
Period7/14/137/18/13

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Tada, N., Matsukawa, Y., & Uchida, M. (2013). Non-destructive detection of crack in HDPE plate by nanometric change in surface profile. In ASME 2013 Pressure Vessels and Piping Conference, PVP 2013 (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 5). https://doi.org/10.1115/PVP2013-97732