A new way of implementing the stiffness derivative method for determining stress intensity factors

Authors
Ng, SW Lau, KJ
Citation
Sw. Ng et Kj. Lau, A new way of implementing the stiffness derivative method for determining stress intensity factors, INT J FRACT, 102(2), 2000, pp. L29-L32
Citations number
4
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF FRACTURE
ISSN journal
03769429 → ACNP
Volume
102
Issue
2
Year of publication
2000
Pages
L29 - L32
Database
ISI
SICI code
0376-9429(200003)102:2<L29:ANWOIT>2.0.ZU;2-J
Abstract
A new procedure for implementing the stiffness derivative method for evalua ting stress intensity factor is proposed. Unlike the original approach, the proposed method involves the nodal displacements and strain energies of th e crack-tip elements only. The undesirable need to extract element stiffnes s matrices in the original approach is removed. The proposed approach can b e easily implemented using commercial finite element packages.