Paper Titles
Influence of Plastic Anisotropy on Limit Load of Welded Joints with Cracks
p.425
Crack Propagation as a Free Boundary Problem
p.429
Dynamic Analysis of a Piezoelectric Material with an Impermeable Penny-Shaped Crack under Pure Torsional Wave
p.433
Initiation and Propagation of Impact-Induced Damage in CFRP Laminates
p.437
Finite Geometrically Similar Element Method for Dynamic Fracture Problem
p.441
Application of ANN Back-Propagation for Fracture Design Parameters of Medium Carbon Steel in Extra-Low Cycle Axial Fatigue Loading
p.445
Development of Experimental Procedure Based on the Load Separation Method to Measure the Fracture Toughness of Zr-2.5Nb Tubes
p.449
Intergranular Fracture at 500°C in Pre-Fatigue Crack Tip Damaged Zone of Austenitic Stainless Steel
p.453
Failure Stress Estimation of Table Liner for Vertical Roller Mill
p.457

Finite Geometrically Similar Element Method for Dynamic Fracture Problem

Article Preview

Abstract:

A finite geometrically similar element method is proposed to determine the dynamic stress intensity factor. A group of geometrically similar elements is automatically generated layer by layer around the point of singularity. The large number of degrees of freedom around the tip of singularity is transformed to a small set of generalized coordinates by means of the series expansion formulas of the displacement field. By taking advantage of the same stiffness and similar mass of similarly shaped elements, the combined stiffness matrix of super-element is obtained directly. The small set of generalized coordinates can be obtained through solving the equation, and then the dynamic stress intensity factor of V-notch (crack) will be obtained. There are some advantages for this method such as good adaptability, high precision and good convenience.

You might also be interested in these eBooks
The Mechanical Behavior of Materials X View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 345-346)

Pages:

441-444

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.345-346.441

Citation:

Cite this paper

Online since:

August 2007

Authors:

You Tang Li, Ping Ma

Keywords:

Crack, Dynamic Stress Intensity Factor (DSIF), Fracture, Geometrically Similar Element, V-Notch

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] K. Kishimoto, S. Aoki and M. Sakata, Engng Fracture Mech. Vol. 13 (1980), p.501.

Google Scholar

[2] T.M. Tharp, Int. J. Numer. Meth. Mech. Engng Vol. 24 (1987), p. (1941).

Google Scholar

[3] A.D. Dimargonas and G. Grounaris, Comput. Structures Vol. 28 (1988), p.309.

Google Scholar

[4] N. Miyazaki, Engng Fracture Mech. Vol. 38 (1991), p.320.

Google Scholar

[5] C. Germ and Y.S. Lin, Engng Fracture Mech. Vol. 48 (1994), p.475.

Google Scholar

[6] A.Y.T. Leung, R.K.L. Su, Engng Fracture Mech. Vol. 48 (1994), p.847.

Google Scholar

[7] A.Y.T. Leung and R.K.L. Su, Engng Fracture Mech. Vol. 51 (1995), p.879.

Google Scholar

[8] C. B. Hu, Y. T. Li and J. Gong. Key Engineering Materials. Vol. 145~149 (1998), p.267.

Google Scholar

[9] Y. T. Li, C. F. Yan and Y. P. Kang. Key Engineering Materials. Vol. 306-308 (2006), p.61.

Google Scholar