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

Technology

BMT WBM to Showcase TUFLOW at World Bank Seminar

BMT WBM ( (BMT), a subsidiary of BMT Group Ltd, a leading international engineering and risk management consultancy, is delighted to announce that it will be presenting

Senator Kaine Tours NNS Apprentice School

Huntington Ingalls Industries (HII) apprises that it has hosted Sen. Tim Kaine, D-Va., for a tour of The Apprentice School at the company's Newport News Shipbuilding division.

Rosneft Restores Meteorological Observations System in Kara Sea

As part of a large-scale summer Arctic research expedition "Kara-Summer - 2014" a meteorological station was installed that meets the latest modern requirements for such equipment,

Shipbuilding

Royal IHC Starts Building EasydredgeTM 2700

Royal IHC (IHC) is constructing the first vessel in its range of competitively priced standard trailing suction hopper dredgers (TSHD). It has started to build

MN 100: Horizon Shipbuilding, Inc.

13980 Shell Belt Road Bayou La Batre, AL 36509 E-mail: trshort@horizonshipbuilding.com Website: www.horizonshipbuilding.com President and General Manager: Travis R.

MN 100: Kvichak Marine Industries, Inc.

469 NW Bowdoin Place Seattle, WA 98107 Telephone: 206 545 8485 E-mail: sales@kvichak.com Website: www.kvichak.com CEO/President: Keith Whittemore Number of

Ship Repair & Conversion

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

MN 100: Horizon Shipbuilding, Inc.

13980 Shell Belt Road Bayou La Batre, AL 36509 E-mail: trshort@horizonshipbuilding.com Website: www.horizonshipbuilding.com President and General Manager: Travis R.

Ecospeed Fuel and Cost Saving Solutions at SMM

Ecospeed announced it will exhibit its line of fuel and cost saving solutions at SMM in Hamburg. Ecospeed and fuel savings Routine in-water cleaning results

Environmental

Brazil Presidential Candidate Silva Moots Price on Carbon

Brazilian presidential candidate Marina Silva plans to put a price on greenhouse gas emissions and implement a national carbon market if elected, according to policy proposals released on Friday.

Kalmar to Supply 4 RTGs to Super Terminais, Brazil

Kalmar, part of Cargotec, will deliver four E-One2 Zero Emission rubber-tyred gantry cranes (RTGs) to Super Terminais in Manaus, Brazil. The 8 million USD order

Too Eager to Drill for Arctic Oil - Greenpeace

Greenpeace's ship, the Esperanza, is still on station in the Arctic to expose renewed Norwegian efforts to drill for oil in this pristine environment. Last

Energy

Brazil Presidential Candidate Silva Moots Price on Carbon

Brazilian presidential candidate Marina Silva plans to put a price on greenhouse gas emissions and implement a national carbon market if elected, according to policy proposals released on Friday.

SBM Offshore Completes Real Estate Divestment

SBM Offshore is pleased to announce that is has completed the sale and lease back of its Monaco real estate portfolio.  The last of the three buildings was sold

Athabasca Completes Dover Stake Sale to PetroChina

Canada's Athabasca Oil Corp said it had closed the sale of its 40 percent interest in the Dover oil sands project to a unit of PertroChina Co Ltd for $1.18 billion.

Naval Architecture

ASNE to Host Launch & Recovery Symposium

The American Society of Naval Engineers (ASNE) announced that registration has opened for its Launch and Recovery Symposium 2014: Launch and Recovery of Manned

MN 100: Guido Perla & Associates, Inc.

701 5th Avenue Seattle, WA 98104 Tel: (206) 768-1515  Email: Inga.Scholz@gpai.com Website: www.gpai.com President & CEO: Guido Perla The Company: With offices in the US,

‘Naval Architecture for Non Naval Architects’ Course

From September 15-18, 2014, HMC will provide a course “Naval Architecture for Non-Naval Architects” in Singapore and Kuala Lumpur. HMC facilitated this course in cooperation with M.

News

Brazil Presidential Candidate Silva Moots Price on Carbon

Brazilian presidential candidate Marina Silva plans to put a price on greenhouse gas emissions and implement a national carbon market if elected, according to policy proposals released on Friday.

SBM Offshore Completes Real Estate Divestment

SBM Offshore is pleased to announce that is has completed the sale and lease back of its Monaco real estate portfolio.  The last of the three buildings was sold

Kalmar to Supply 4 RTGs to Super Terminais, Brazil

Kalmar, part of Cargotec, will deliver four E-One2 Zero Emission rubber-tyred gantry cranes (RTGs) to Super Terminais in Manaus, Brazil. The 8 million USD order

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction
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: 0.1579 sec (6 req/sec)