Comments on the evaluation of the stress intensity factor for a general re-entrant corner in anisotropic bi-materials

✍ Scribed by L.Y. Shang; Z.L. Zhang; B. Skallerud

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 436 KB
• Volume: 76
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/j.engfracmech.2009.01.012

✦ Synopsis

This paper illustrates an efficient contour integral procedure to obtain stress intensity factors in combination of the asymptotic analysis with finite element analysis. Note that this set-up is very general: the material can be anisotropic elastic, and the specimen can be built as a bi-material system, notches of arbitrary opening angle can be analyzed (c = 0 ? crack, c = 180°? free edge).

The purpose of this technical note is to comment on three issues in the notch mechanics: the interpretation of the eigenvalue equation, the definition of stress intensity factors, and the effect of the outer contour location on H-integral evaluations.