Fatigue performance of tubular X-joints: Numerical investigation
Abstract
The cyclic actions due to waves, currents and winds on offshore platforms frequently cause fatigue cracks at hot-spot locations. The remaining fatigue life of such connections depends significantly on the fatigue driving force often measured by the stress-intensity factors. This study examines the fatigue performance of tubular joints fabricated using a new type of enhanced partial joint penetration weld details under constant-amplitude brace in-plane bending actions. The numerical study ascertains the crack propagation angle, the crack-front profile and the interaction between adjacent cracks on the stress-intensity factors.
Keywords
Fatigue; tubular X-joints; crack propagation; SIF; finite element model
Full Text:
PDFDOI: https://doi.org/10.15625/0866-7136/35/1/2896 Display counter: Abstract : 207 views. PDF : 92 views.
Refbacks
- There are currently no refbacks.
Copyright (c) 2013 Vietnam Academy of Science and Technology
Editorial Office of Vietnam Journal of Mechanics 3rd Floor, A16 Building, 18B Hoang Quoc Viet Street, Cau Giay District, Hanoi, VietnamTel: (+84) 24 3791 7103 Email: vjmech@vjs.ac.vn |