円状均一加熱下の熱応力によるき裂の進展  [in Japanese] Crack extension induced by thermal stresses associated with uniform heating in a circle.  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

The time-dependent stress intensity factor of a semi-infinite crack has been obtained when an infinite plate is heated uniformly in a circle near the crack tip. The intensity depends on the heating location D and the radius R. But the radius dependence is small and the total amount of heat gives almost the same intensity as point heat as long as R/D remains small. This is preferable for cleavage cutting in which surface melting should be avoided. Glass plates were heated by an exposure of the CO<SUB>2</SUB> laser beam and crack opening displacements were measured by an interference method. The measured crack deformation corresponds well with the thermal stress analysis. At the onset of the crack extension, similar stress intensity was attained for the same plate thickness irrespective of the heating intensity and location.

Journal

  • TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 56(524), 850-854, 1990

    The Japan Society of Mechanical Engineers

Cited by:  1

Codes

  • NII Article ID (NAID)
    110002373062
  • NII NACSIS-CAT ID (NCID)
    AN0018742X
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0387-5008
  • NDL Article ID
    3661100
  • NDL Source Classification
    M071(工業材料・材料試験)
  • NDL Source Classification
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL Call No.
    Z14-737
  • Data Source
    CJPref  NDL  NII-ELS  J-STAGE 
Page Top