𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Stress intensity factors by enriched mixed finite elements

✍ Scribed by P. R. Heyliger; R. D. Kriz

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
610 KB
Volume
28
Category
Article
ISSN
0029-5981

No coin nor oath required. For personal study only.

✦ Synopsis

An enriched finite element model for linear elastic fracturc mechanics is developed for a mixed variational statement. The independent approximations for the displacement and stress components are enriched by adding the near-field analytic expressions for a cracked body to the polynomia1 approximations of a conventional element. This allows for an accurate representation of the stress and displacement fields near the crack tip and also results in the direct calculation of the appropriate stress intensity factors. The accuracy of this formulation is demonstrated through several numerical examples.

πŸ“œ SIMILAR VOLUMES

Finite element evaluation of mixed mode
Finite element evaluation of mixed mode stress intensity factors in functionally graded materials
✍ Jeong-Ho Kim; Glaucio H. Paulino πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 535 KB

## Abstract This paper is directed towards finite element computation of fracture parameters in functionally graded material (FGM) assemblages of arbitrary geometry with stationary cracks. Graded finite elements are developed where the elastic moduli are smooth functions of spatial co‐ordinates whi

Stress intensity factor analysis by comb
Stress intensity factor analysis by combination of boundary element and finite element methods
✍ N. Miyazaki; T. Ikeda; T. Munakata πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 839 KB

In the present paper, a combination of the boundary element method is proposed for calculating the stress intensity factors of two-dimensional crack problems including mixed mode ones. In this method, finite elements are only allocated around a crack tip and boundary elements are used to discretize

Finite elements for determination of cra
Finite elements for determination of crack tip elastic stress intensity factors
✍ Dennis M. Tracey πŸ“‚ Article πŸ“… 1971 πŸ› Elsevier Science 🌐 English βš– 713 KB

A new type of finite element is introduced which embodies the inverse square root singularity present near a crack in an elastic medium. Using this element near the tip in two typical cracked configurations, stress intensity factors within 5 per cent of accepted values were obtained with meshes havi