Tính chịu bền mỏi của các khớp nối x hình ống: nghiên cứu số học

• Ngôn ngữ: vie
• Ký hiệu phân loại: 616.0478 Diseases
• Thông tin xuất bản: Vietnam Journal of Mechanics, 2013
• Mô tả vật lý: 67-77
• Bộ sưu tập: Metadata
• ID: 563347

Tóm tắt

The cyclic actions due to waves, currents and winds on offshore platforms fi'equently 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.