Evaluation of tensile strength of partial penetration butt welded joints by ultrasonic testing

被引：1

作者：

Matsuura, H

Kaji, A

机构：

[1] Okayama Univ Sci, Dept Assist & Rehabil Engn, Okayama 7000005, Japan

[2] Okayama Univ Sci, Grad Sch, Okayama 7000005, Japan

来源：

JSME INTERNATIONAL JOURNAL SERIES A-SOLID MECHANICS AND MATERIAL ENGINEERING | 2001年 / 44卷 / 04期

关键词：

ultrasonic testing; fracture mechanics; welded joint; two-parameter approach; failure assessment diagram; tensile strength; partial penetration;

D O I：

10.1299/jsmea.44.514

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Partial penetration butt welded joints are widely used because they require relatively less weld metal for fabrication. However, incomplete penetration acts as a crack-like flaw. When the size of flaw in a material is known, the tensile strength of the material can be evaluated using fracture mechanics. This paper deals with a practical method of estimating the size of flaw (the incomplete penetration of a partial penetration butt welded joint) by ultrasonic testing (UT). The refraction angle of the probe and the method of UT are discussed. In addition, tensile strengths of welded joints are evaluated using fracture mechanics, and are found to be in good agreement with experimental results.

引用

页码：514 / 519

页数：6

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