WIT Press


Unitary Weight Functions For Semi-infinite Crack In The Half-plane

Price

Free (open access)

Paper DOI

10.2495/LD940491

Volume

6

Pages

8

Published

1994

Size

527 kb

Author(s)

K.L. Molski

Abstract

Unitary weight functions for semi-infinite crack in the half-plane K.L. Molski Institute of Cranes and Heavy Machinery Engineering, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, Poland ABSTRACT Weight function method, suggested by Bueckner [4] and Rice [5], is one of the most effective tools of stress intensity factor determination in cases of continuous load symmetrically distributed along both sides of the crack. To simplify integra- ting procedures and unify the weight function description - unitary weight function was proposed in [7], which assures high accuracy, very short computing time and easy application for computer use. In this paper the unitary weight functions as well as corresponding correction functions F for Mode I;, II and III are developed for a semi-infinite crack in the half-plane. In this case the "inverse geometry" method proposed by Bueckner [4] is used. Results obtained for Mode III are based on closed form solution. For Mode I

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