BV: Warping Analysis Cures Fatigue Cracking

Tuesday, December 07, 2004
Bureau Veritas says detailed warping analysis is the key to a crack-free new generation of containerships. "Some large containerships appear to be suffering cracking of longitudinals caused by fatigue and warping stress," says Pierre de Livois, technical director of Bureau Veritas Marine Division. "We are pleased that the many Panamax and post-Panamax containerships built with Bureau Veritas class show that extensive Finite Element Model analysis and attention to fatigue and structural details at the building stage have paid off. They are not showing this typical cracking in the side longitudinals."

De Livois says, "We have been able to incorporate all our positive experience into different series of containerships built this year in various shipyards. We were able to check the designs against the most recent developments of sophisticated fatigue analysis during the very preliminary design stage, and during the engineering detailed development. Our latest software tools for structural and fatigue analysis allow us to meet all class requirements in terms of scantling and connection details, and also help to achieve the best compromise in term of cost/benefit for both owner and shipyard." Ludovic Gerard, CMA CGM Newbuilding says, "This early stage approach, working closely with the class society on a new project, is without any doubt a safety and cost benefit scheme. In partnership, we for instance managed to decrease the fatigue restraints of our 5,770 TEU containerships built by Samsung in 2004, without any additional structural requirement."

Fatigue is a complex phenomena which requires careful feed-back experience analysis and continuous development of dedicated calculation methods and tools. Bureau Veritas has invested accordingly for a long time to achieve leadership in this field, and its experience in practice highlights the undeniable effects of design optimization and safety benefits shared by the shipowners and shipyards.

Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Legal

Cruise Ship Liability & Compensation Treaty Kicks In

The International Maritime Organization (IMO) informs that substantially increased limits of liability for the death of, or personal injury to, a passenger on a ship apply from 23,

Australian Warship Bags Record Heroin Haul

On the eve of Anzac Day commemorations, Royal Australian Navy (RAN) frigate 'HMAS Darwin' seized and destroyed more than one tonne of heroin. The record 1032

Italian Pleads Guilty to Marine-hose Price-fixing in US

A former executive of Parker ITR Srl pleaded guilty on Thursday to conspiring to rig bids for marine hose and was sentenced to two years in prison, the U.S. Justice Department said on Thursday.

Container Ships

Matson Declares Q2 2014 Dividend

Leading US carriers in the Pacific, Matson, Inc., apprises it has declared a second quarter 2014 dividend of $0.16 per common share. "Today's authorization continues

At Hamburg port E-mobility Project, BESIC enters crucial phase

Ten battery-operated heavy goods vehicles now transport containers between ships and the yard at the highly automated handling facility in the HHLA Container Terminal Altenwerder (CTA).

UASC Introduces New Asia - Europe Network

UASC has introduced its new Asia – Europe Network with three new services (AEC1, AEC3, AEC4), and two enhanced services (AEC8, AEC9). These services will broaden

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Offshore Oil Pipelines Pod Propulsion Salvage Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0948 sec (11 req/sec)