Transcript Project Overview - Ship Structure Committee

Ship Structure Committee
An Interagency Research and Development Committee for Safer Ship Structures
It Happened on My Watch;
a Retrospective of the SSC
Foundation
In the early 1940’s, twenty eight
merchant ships had suffered critical
structural casualties. Two had broken
in two pieces, and four had suffered
complete fractures of the strength deck.
Foundation
The Board consisted of US Coast
Guard, US Navy Bureau of Ships, US
Maritime Commission, and American
Bureau of Shipping. The final report of
the Board was dated 15 July 146, and
included studies of 132 major
structural ship casualties.
Creation
The final recommendation of the Board
was as follows: “Finally it is
recommended that an organization be
established to formulate and coordinate
research in matters pertaining to ship
structure in the same manner as has
been the practice during the tenure of
the Board.”
Creation
Accordingly on 25 July 1946, the
Acting Secretary of the Treasury, Mr.
E.H. Foley, Jr. established the Ship
Structure Committee, with the same
general membership as that of the
original Board. Lead by a Coast Guard
Commander
Mission
To enhance the performance of ship
structures and the safety of life at sea,
promote technology and educational
advancements in marine transportation
and protect the marine environment
through research and development
projects.
Failure of
Liberty Ships
Mechanical,
chemical, &
physical
metallurgy
geometry of
structural
members
Transition
temperatures
effect of edge
preparations
Catamarans
dynamically supported
vessels
cryogenic product
full transverse fracture
Fatigue failure in
new high
strength steel
vessels
Oil pollution
prevention
failure
mechanisms
60th
Anniversary
Aluminum
structure
Ballast water
treatment
structural damage
50th Anniversary
Life cycle risk
management
2016
2006
1996
1986
1976
1966
1956
1946
Over 60 Years of History
Roles & Responsibilities
• SSC Co-Chair
– CG-5P – RDML Servidio - Asst. Commandant for Prevention
Policy
– SEA 05 – RDML Fuller - NAVSEA’s Deputy Commander Ship
Design, Integration and Naval Engineering Naval Sea Systems
Command
• SSC Administration
– Executive Director, LT Joshua A. Kapusta
– Administrative Assistant , Ms. Jeannette Grant
• Principal Members
• Executive Group Members
• Sub-Committee Members
Principal Members of the SSC
•
American Bureau of Shipping
•
Defence Research and Development Canada - Atlantic
•
Maritime Administration
•
Military Sealift Command
•
Naval Sea Systems Command
•
Office of Naval Research
•
Transport Canada
•
Society of Naval Architects and Marine Engineers
•
USCG Commercial Vessel Engineering
•
USCG Fleet Engineering
ABS
www. shipstructure.org
Web Trends & Analysis
3,000,000
United States, 73%
2,500,000
International, 27%
Website hits per year
2,000,000
1,500,000
1,000,000
500,000
0
2001
2002
2003
2004
2005
2006
2007
Year
2008
2009
2010
2011
2012
2013
Impact & Relevance
SSC Report Dowloads
Top 20 Statistics
10,000,000
• AL & Composite Structures
9,000,000
Number of Downloads
8,000,000
7,000,000
6,000,000
5,000,000
4,000,000
Total Downloads
Top 20 All-time
Downloads
•
•
•
•
Fatigue & Fracture
Design Criteria, Standards & Loads
Weld, Fabrication & Fastening
FEA
3,000,000
2,000,000
1,000,000
0
**Statistics calculated through 2013.
59% of all report downloads were
published in last 10 years
Impact & Relevance
Recent projects include:
1. Inspection Technique for Marine
Composite Construction
2. Design and Detailing for High
Speed Aluminum Vessels Design
3. Structural Challenges Faced by
Arctic Ships
4. Predictive Modeling Impact of Ice
on Ship and Offshore Structures
5. Development of a Structural Health
Monitoring Prototype for Ship
Structures
Domestic & International regulation
projects that have benefitted:
High Speed Craft NVIC – marine
composite and Aluminum structures,
fatigue analyses, inspection techniques
IMO POLAR Code – Ice impacts (direct
and glancing blows), Ice flow studies,
structural impacts to operating in harsh
environments
IMO Return to Port guidelines –
Reliability based structural damage
assessment studies
Sustainability– Lightweight construction
and repair
1940s
•Formed based on a recommendation of the
Board of Investigation studying the brittle
fracture of the Liberty Ships.
•Continued research in Ship Structures
1950s
•mechanical metallurgy
•chemical & physical metallurgy
1960s
•geometry of structural members
•transition temperatures
•effect of edge preparations
1970s
•new designs - new structural concerns
•catamarans
•dynamically supported vessels
•cryogenic product
•full transverse fracture
•ITB MARTHA INGRAM broke in two (brittle)
•Mineral Management Service added
•First Symposium with SNAME!
1980s
•fatigue failure in new high strength steel
vessels
•oil pollution prevention
•failure mechanisms and their abatement
•Mineral Management Service left
•OBO DERBYSHIRE
1990s
•reliability based ship design
•improved structural detail design
•welding practices
•inspection techniques
•investigate expanded use of composite materials
•MSC CARLA
•Canada joins
•SNAME joins as full member
2000s
•reliability/risk methodologies
•human element in ship design
•high speed vessels
•crashworthiness of ship structures
2010s
•Fatigue analysis and design
•Aluminum & Composites
•Structural Hull Monitoring
•Ice interaction and arctic operations