New Fatigue Model Leads to More Durable Ships

Marinelink.com
Tuesday, April 23, 2013
The model allows for the development of lighter structures, and as a consequence, more energy-efficient ships.

Heikki Remes, a researcher at the Aalto University in Finland, has developed a model making it possible to determine how fatigue sets in with various welded steel materials. The model allows for the development of lighter structures, and as a consequence, more energy-efficient ships.

 

 By utilizing modern manufacturing technology and new materials, it is possible to achieve more efficient structures than the ones that currently exist. In addition, better physical models are needed to ensure structural strength, Remes says.

 

At present the fatigue measurements used by classification societies are based on the average quality of the weld. The same design guideline is used both with traditional and more advanced structures. However, through the development of manufacturing technology, it is possible to achieve characteristics for welded joints that are significantly better than average. With the models that have been developed, it is possible to consider the difference between traditional and advanced structural joints and the impact on fatigue resistance.


The study has been published in the International Journal of Fatigue. The findings of the study can be used extensively in establishing models for fatigue endurance of various developed welded steel structures. The goal is to predict fatigue endurance more accurately and to utilise material in the final product more efficiently.
 

The work is linked with a project of the Academy of Finland on fatigue in thin sandwich panel structures and with the BESST EU project to promote the competitiveness of the European shipbuilding industry. Also under preparation are national development projects within the Finnish Metals and Engineering Competence Cluster (FIMECC). The work also supports the national maritime industry research strategy commissioned by the Federation of Finnish Technology Industries.


The research has received funding from the Academy of Finland, Tekes, STX Europe, and the Finnish Maritime Foundation, Light project – Finnish Metals and engineering Competence Center.

Maritime Reporter January 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

HII Acquires Engineering Solutions Division

Huntington Ingalls Industries (HII) has acquired the Engineering Solutions Division of The Columbia Group, a designer and builder of unmanned underwater vehicles

'World's First Hybrid Superyacht'

Developed by Dutch shipbuilders Feadship, the 83.5m Savannah is touted as the world's first hybrid super yacht. Vessel is 30% more fuel efficient than similar sized counterparts, claims the company.

Navigational Charts App Debuts at Ocean Business

An independent consultancy and software development company will launch a new web and PC based navigational charting app at Ocean Business 2015.   Norcom Technology

Shipbuilding

Imabari to Build 20,000TEU Containerships

Imabari Shipbuilding Co., Ltd. announced it has secured newbuild orders with the cooperation of Marubeni Corporation for 11 units of 20,000TEU Ultra-Large Container Carriers,

SSI Launches ShipConstructor 2015 R2.1

SSI has today released ShipConstructor 2015 R2.1 software.   The software release comes in response to emerging ship design, engineering and building trends as

HII Acquires Engineering Solutions Division

Huntington Ingalls Industries (HII) has acquired the Engineering Solutions Division of The Columbia Group, a designer and builder of unmanned underwater vehicles

Environmental

Congestion is Port of Long Beach’s Toughest Issue

Slangerup’s State of the Port address outlines goals for Energy Island, smarter supply chain   In his first-ever State of the Port address, Port of Long Beach

BOEM Issues Supplemental Environmental Impact Statement

The U.S. Department of the Interior, Bureau of Ocean Energy Management (BOEM), announces the availability of the Draft Supplemental Environmental Impact Statement

European Shipping Week Announces Speakers

Adam Goldstein, President and COO of Royal Caribbean Cruises, Pierfrancesco Vago, Chairman of CLIA Europe and Executive Chairman of MSC Cruises, and Paolo Tonon,

Marine Materials

Imabari to Construct Newbuilding Dry Dock

In order to accommodate construction of Ultra-Large newbuilding vessels including recently secured 20,000TEU Mega container ships (about 400m in length and about 59m breadth),

31 ARENA Projects Completed

ARENA has invested $1 billion in more than 230 projects, fellowships and scholarships that are paving the way for a more diverse energy future for Australia.

Safeguarding Maritime Power Connections

KIRK interlocking products provide safe electrical access during cold ironing, ensuring that ship power cables are properly coupled to shore power junction boxes before energizing.

Naval Architecture

Imabari to Build 20,000TEU Containerships

Imabari Shipbuilding Co., Ltd. announced it has secured newbuild orders with the cooperation of Marubeni Corporation for 11 units of 20,000TEU Ultra-Large Container Carriers,

SSI Launches ShipConstructor 2015 R2.1

SSI has today released ShipConstructor 2015 R2.1 software.   The software release comes in response to emerging ship design, engineering and building trends as

NASSCO to Christen Third MLP, Lewis B. Puller

Shipbuilder General Dynamics National Steel & Shipbuilding Co. – NASSCO – will christen the USNS Lewis B. Puller (MLP 3 AFSB) Saturday, February 7, 2015 in San Diego.

News

Imabari to Build 20,000TEU Containerships

Imabari Shipbuilding Co., Ltd. announced it has secured newbuild orders with the cooperation of Marubeni Corporation for 11 units of 20,000TEU Ultra-Large Container Carriers,

Kongsberg Expands Louisiana Office, Training Facility

Kongsberg Maritime has purchased approximately 5.2 acres for new construction on an 82,980 sq ft office and training facility. Construction on the James Business

HII Acquires Engineering Solutions Division

Huntington Ingalls Industries (HII) has acquired the Engineering Solutions Division of The Columbia Group, a designer and builder of unmanned underwater vehicles

Vessels

Imabari to Build 20,000TEU Containerships

Imabari Shipbuilding Co., Ltd. announced it has secured newbuild orders with the cooperation of Marubeni Corporation for 11 units of 20,000TEU Ultra-Large Container Carriers,

NASSCO to Christen Third MLP, Lewis B. Puller

Shipbuilder General Dynamics National Steel & Shipbuilding Co. – NASSCO – will christen the USNS Lewis B. Puller (MLP 3 AFSB) Saturday, February 7, 2015 in San Diego.

New Survey Vessel Ordered for the Port of London

The Port of London Authority (PLA) has ordered a new purpose-built survey catamaran, a CTruk MPC19, due to enter service on the river Thames later this year.   The

Software Solutions

SSI Launches ShipConstructor 2015 R2.1

SSI has today released ShipConstructor 2015 R2.1 software.   The software release comes in response to emerging ship design, engineering and building trends as

Tero Marine Names Staubo VP of Sales

Erik Sarmento Staubo has been promoted to vice president of sales at Norwegian software company Tero Marine, assuming the role from February 1.   Staubo has for the last 1.

Navigational Charts App Debuts at Ocean Business

An independent consultancy and software development company will launch a new web and PC based navigational charting app at Ocean Business 2015.   Norcom Technology

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Navigation Port Authority Salvage Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1765 sec (6 req/sec)