簡易硬度計による建築鉄骨溶接部の引張強さ推定に関する実験的研究

概要

論文の詳細を見る
We can use steel's hardness to indicate the material characteristics. It is said that the hardness is related with its strength, so we can estimate the strength of steel with nondestructive test technique. Recently a lot of reserchers studied the relationship between the material's hardness cut out from heat-affected-zone and its strength. At that time they conducted rockwell hardness test, brinell hardness test, vickers hardness test. But we had to conduct these tests in a experimetal labolatory, so we couldn't check the hardness at construction sites. In this study, we conducted hardness test with some portable-hardness-testers and studied the strength of heat-affected-zone and its hardness. At that time some men used four types tester and we studied the difference of each tests. As results, we understood the relationship the tensile strength of heat-affected-zone and its hardness measured with portable hardness tester. So we will be able to use the portable hardness tester to check the strength of steel at the construction site.
一般社団法人日本建築学会の論文
2007-03-20