Fatigue performance of tubular X-joints: Numerical investigation

Fatigue performance of tubular X-joints: Numerical investigation

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The cyclic actions swish supreme glide track white 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 tillman 750m interaction between adjacent cracks on the stress-intensity factors.