Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
권호 표지

A study on the acoustic emission and triaxial stress fields in ductile fracture

삼축응력(三軸應力)을 받는 연성파괴(延性破壞)에서의 AE 발생특성(發生特性)에 관한 연구(硏究) (제1보(第一報))

  • 한응교 (한양대학교 공과대학 정밀기계공학과) ;
  • 최만용 (한국표준연구소 정밀계측 기기센타) ;
  • 한정식 (한국 검사개발(주))
  • Published : 1986.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

In recent years the acoustic emission technique has been increasingly applied for detecting flaw s and cracks in materials either under testing or in service. It is important that what is the origin of AE signals detected by AE transducers. The purpose of this paper is to detect AE source on ductile material such as pressure vessel steel, A533B. As the results of experimentation, the increase of AE events number is proportional to the increase of the volume of plain strain zone. The origin of AE signals is fracture of MnS inclusions which have small amplitude of AE waves.

Keywords