A Study on the Angle of Localization of a Metal Specimen under Uniaxial Tension with Plane Strain Condition

평면 변형 조건에서 일축 인장력을 받는 금속 재료의 불연속 변위 각에 대한 연구

  • 박재균 (단국대학교 토목환경공학과) ;
  • 김미림 (단국대학교 토목환경공학과)
  • Received : 2011.01.03
  • Accepted : 2011.05.24
  • Published : 2011.06.30

Abstract

When a flat bar type metal specimen for general tension test is subject to incremental uniaxial tension, a narrow plastic shear band, so called luders band, is generated at some instance. This band typically has an angle to the axis of specimen and many early researches have been done to investigate the condition and angle of this localized deformation phenomenon by many researchers. This study follows the procedure of Thomas(1961) under plane stress boundary condition. $J_2$ plasticity theory, balance of linear momentum, and constitutive equations are used to derive the angle of luders band under plain strain boundary condition. The result was confirmed by other angle based on acoustic tensor theory.

Acknowledgement

Supported by : 단국대학교

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