๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

J-integral estimate for biaxially stressed Mode I cracks based on COD strain

โœ Scribed by Takamoto Itoh

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
550 KB
Volume
21
Category
Article
ISSN
0142-1123

No coin nor oath required. For personal study only.

โœฆ Synopsis

This paper proposes a simple equation for evaluating J-integral values for biaxially stressed Mode I cracks. Finite element analyses were carried out to obtain the relationship between J-integral and crack opening displacement by varying the inelastic constitutive relationship, crack length and stress/strain biaxiality. A quantitative relationship was derived between the J-integral and crack opening displacement for various kinds of stress-strain relationships. A new equation for estimating the J-integral was proposed based on the crack opening displacement. The equation evaluated J-integral values for biaxially stressed Mode I cracks within a 25% error if the yield stress, strain hardening coefficient and exponent were known.

๐Ÿ“œ SIMILAR VOLUMES

On Cauchy singular integrals and stress
On Cauchy singular integrals and stress intensity factors for 2D mode I cracks in an infinite solid
โœ T.A. Khraishi; I. Demir ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 166 KB

This paper comments on some of the different numerical techniques commonly employed in evaluating Cauchy singular integrals of the first kind; e.g. as pertaining to 2D through cracks in a brittle material undergoing Mode I loading. In addition, a different more direct method is proposed here. Also,