✦ LIBER ✦

Finite element computation of the strain energy release rate for kinking of a crack

✍ Scribed by S. K. Maiti

Publisher: Springer Netherlands
Year: 1990
Tongue: English
Weight: 727 KB
Volume: 43
Category: Article
ISSN: 1573-2673
DOI: 10.1007/bf00018339

No coin nor oath required. For personal study only.

✦ Synopsis

The approximate energy release rate for a crack which extends, or "kinks", away from its original direction has been computed by finite element analysis using three different methods: stiffness derivative procedure, J integral method and crack closure integral procedure. A case study is presented to compare the computational accuracies. It suggests that a satisfactory approximation can be obtained provided that the ratio of kink length to original crack length, l(O)/a <~ 0.04, despite the interaction of the crack tip and knee stress singularities.

📜 SIMILAR VOLUMES

Finite element based computation of stra

Finite element based computation of strain energy release rate by modified crack closure integral

✍ R. Sethuraman; S.K. Maiti 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 298 KB

modified crack closure integral method with square-root stress singularity elements is given for calculation of strain energy release rate for an in-plane extension of a crack. Case studies are presented to illustrate the improvement in accuracy.

FINITE ELEMENT CALCULATION OF ENERGY REL

FINITE ELEMENT CALCULATION OF ENERGY RELEASE RATE PRIOR TO CRACK KINKING IN 2-D SOLIDS

✍ J. H. CHANG; L. P. PU 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 705 KB

A finite element approach, based on the concept of the J,-integrals, is derived for evaluations of the ERR associated with crack kinking in 2-D elastic anisotropic solids. The application is developed as a generalized version of the domain integral method. Attention in this work is also addressed to

Strain energy release rates for an inter

Strain energy release rates for an interface crack in orthotropic media––a finite element investigation

✍ D. Hemanth; K.S. Shivakumar Aradhya; T.S. Rama Murthy; N. Govinda Raju 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 402 KB

Strain energy release rate (SERR) components for an interface crack in two-dimensional orthotropic media were obtained using finite element (FE) analysis. The elastic analysis of interface cracks results in oscillatory singularity. This is prevalent over a very small zone near the crack-tip, where t

3D finite element computation of strain

3D finite element computation of strain energy release rate using different displacement and stress fields

✍ M.M.Abdel Wahab; G. de Roeck 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 450 KB

Ahstract-An efficient technique for calculating the strain energy release rate from a three-dimensional (3D) finite element analysis with square-root stress singularity is presented. The technique is based on the Irwin's crack closure integral method. The variation of the stresses ahead of the crack

Evaluation of a finite element based cra

Evaluation of a finite element based crack-closure method for calculating static and dynamic strain energy release rates

✍ C.J. Jih; C.T. Sun 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 842 KB

## A finite element based crack-closure integral for determining strain energy release rates for two-dimensional elastostatic and elastodynamic crack problems in finite bodies is evaluated. Both the J-integral and crack-closure integral are used to obtain strain energy release rates from the finit

Finite element estimates of strain energ

Finite element estimates of strain energy release rate components at the tip of an interface crack under mode I loading

✍ B. Dattaguru; K.S. Venkatesha; T.S. Ramamurthy; F.G. Buchholz 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 958 KB

The strain energy release rate components G, and G,, in mode I and mode II at the tip of an interface crack in a bimaterial plate under tension in a direction normal to the interface were evaluated using finite element analysis and Modified Crack Closure Integral (MCCI) technique. Three models, name