ニッケルはくひずみ計に対する画像処理およびレプリカ法の適用

概要

論文の詳細を見る
When a piece of nickel foil is attached on the surface of a specimen subjected to repeated loads at various temperatures in the range of room temperature to 350℃, the elastic surface stress is measured by making microscopic observations of slip bands in the foil, caused by repeated shearing strains. An image-processing system using a personal computer is applied for an automatic measurement of the density of slip bands in the attached foil. In order to apply the technique to the foil attached to a large specimen, the replica method using a plastic film is successfully applied to replicate the slip bands in the attached foil. The density of the replicated slip bands is also measured by the image-processing system and is found to be in good agreement with the density of the original slip bands. The peak stresses in grooved shafts under bending are measured with nickel foil gages and the image-processing system, and it is found that the results are satisfactorily accurate.
一般社団法人日本機械学会の論文
1996-07-25