破壊力学　レーザスペックルゲージＳＳＤＧによるひずみ・き裂開口変位計測

DOI Web Site 被引用文献10件

書誌事項

タイトル別名
  • Special Issue on Fracture Mechanics. New Development of Laser Speckle Strain/Displacement Gage for the Measurement of Fracture Mechanics Parameters.
  • レーザ スペックルゲージ SSDG ニ ヨル ヒズミ キレツ カイコウ ヘンイ

この論文をさがす

抄録

This paper discribes a new strain/displacement measuring SSDG system by using laser speckles. An emphasis was put on the development of a real time non-contact system which could be applicable to the measurements of a local strain and a crack opening displacement (COD) around crack tips both at room and elevated temperatures.<br>A conventional double sensor SSDG system, in which two image sensors are required to eliminate the rigid motion of samples, was first discussed. A single sensor SSDG system was newly proposed which was applicable to the COD measurements. A real time processing of speckle movements was realized by an originally developed software. The applicability of the single sensor system was successfully tested in the COD measurements of cracks in ceramics and in the closure measurements of small cracks in steels under cyclic thermal stressing at elevated temperatures.<br>Furthermore an application of this system to a crack tip deformation measurement under mixed loading of Mode I and II was included.

収録刊行物

  • 材料

    材料 43 (493), 1290-1296, 1994

    公益社団法人 日本材料学会

被引用文献 (10)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ