Collaborative Project Call ID FP7-SST-2008-RTD-1 Proposal N 233969 - - PowerPoint PPT Presentation

CO COMPOSITE MPOSITE PATCH PATCH REPAIR REPAIR OF METALLIC MARINE STRUCTURES OF METALLIC MARINE STRUCTURES Collaborative Project

Call ID FP7-SST-2008-RTD-1– Proposal N° 233969

Acronym: "Co-Patch“ www.co-patch.com Duration: 36 Months (2010 – 2012)

BV Mettle AS2CON AIMEN CARDAMA CETENA ISQ ENP TWI UniS SSA UM NTNU

PROJECT PARTICIPANTS

HRS

PROJECT COORDINATOR: National Technical University of Athens (NTUA) NTUA

Co-Patch Consortium includes:

3 Universities:

• NATIONAL TECHNICAL UNIVERSITY OF ATHENS (NTUA), Greece
• NORGES TEKNISK - NATURVITENSKAPELIGE UNIVERSITET (NTNU), Norway
• THE UNIVERSITY OF SURREY (UniS), United Kingdom

3 Institutes and Joining Technology Centres:

• TWI Ltd., United Kingdom
• INSTITUTO DE SOLDADURA E QUALIDADE (ISQ), Portugal
• ASOCIACIÓN DE INVESTIGACIÓN METALÚRGICA DEL NOROESTE (AIMEN),

Spain www.co-patch.com/partners

2 Ship Classification Societies:

• BUREAU VERITAS (BV), France
• HELLENIC REGISTER OF SHIPPING (HRS), Greece

4 Shipyards and Shipyard associations:

• UMOE MANDAL AS (UM), Norway
• ESTALEIROS NAVAIS DE PENISCHE S.A. (ENP), Portugal
• FRANCISCO CARDAMA S.A. (CARDAMA), Spain
• SHIPBUILDERS AND SHIPREPERAIRS ASSOCIATION (SSA), United Kingdom

www.co-patch.com/partners

3 Research and Consultancy Companies:

• ALVEUS d.o.o. (AS2CON), Croatia
• CETENA S.p.A.(CETENA), Italy
• METTLE SARL (METTLE), France

www.co-patch.com/partners

Objective of the project:

Definition of a new effective repair/reinforcement method for large steel structures with defects

Advantages with respect to conventional repair/reinforcement technologies:

• No hot work
• Application ‘in situ’
• No stress concentrations
• Low added weight

Repair of damages caused by:

• Fatigue
• Corrosion

Upgrade of existent structures for:

• Sustain new loads
• Mitigating initial structural deficiencies

Critical aspect of composite patches:

• Long term performance

Field of application:

• Marine (vessels, platforms...)
• Civil (bridges, cranes...)

Composite patches have been applied successfully on naval ships and offshore platforms :

FPSO (Floating Production Storage and Offloading) (Norway) Repair of the cargo tank bulkhead Type 21 Frigate (Amazon class) Repair of the main deck Type 42 destroyer Repair of the food lift trunk RAN Adelaide Class Frigate Repair of the main deck

• Hythe Bridge (UK): reduction of the stress
• Tickford Bridge (UK): improvement of the load bearing capacity
• Slattocks Canal Bridge (UK): improvement of the load bearing capacity
• Acton Bridge (UK): reduction of strain and raising of the fatigue life
• King Street Bridge (UK): improvement of the load bearing capacity
• Corona Bridge (I TA): improvement thermal and impact performance
• Christina Creek bridge (USA): raising of fatigue life
• Ashland Bridge (USA): reduction of the stress
• I nterstate Highway – 704 (USA): improvement of the load bearing capacity
• State route 82 (USA): improvement of the load bearing capacity

Slattocks Canal Bridge Corona Bridge

… and on Civil Constructions:

• To demonstrate that Co-Patch leads to the reinforcement of a steel structural

member using:

– Theoretical analyses – Numerical simulations – Experimental testing

• To determine, evaluate and quantify the efficiency of Co-Patch reinforcements:

– Small scale testing – Medium scale testing – Large scale testing

PROJECT OBJECTIVES (1)

1 X Y Z

• To evaluate existing or develop new sensor based monitoring techniques
• To demonstrate the effectiveness of the developed design tools and procedures

through full-scale tests

• To develop an internationally recognised training programme for personnel

PROJECT OBJECTIVES (2)

• To develop procedures for the design and application
• f Co-Patch reinforcements

WP5 Design Procedures WP1 Specifications WP2 Monitoring WP4 FE Modelling WP3 Lab Tests WP6 Full Scale Tests WP7 Training Programme

Co Co-

• Patch is organized in eight Work Packages (WP)

Patch is organized in eight Work Packages (WP) WP # TITLE LEADER WP1 Specification of application cases BV WP2 Monitoring methods & procedures NTNU WP3 Laboratory testing NTUA WP4 Numerical simulation procedures CETENA WP5 Guidelines and design procedures AIMEN WP6 Full scale on site tests BV WP7 Dissemination and exploitation TWI WP8 Management NTUA

Project Work includes: Project Work includes:

Materials selection and characterization Materials selection and characterization Mid Mid-

• scale

scale static and fatigue tests static and fatigue tests

Patched plates and beams with defects

Mid Mid-

• scale

scale long long-

• term tests

term tests

Patched plates with defects

Laminate Laminate and application method testing and application method testing

MN MX

X Y Z

• 1.65
• 1.467
• 1.283
• 1.1
• .916667
• .733333
• .55
• .366667
• .183333

1 X Y Z

OCT 1 2007 17:08:21 ELEMENTS MAT NUM

Crack Front Crack

1

MN MX

X Y Z

• 1.835
• 1.628
• 1.421
• 1.214
• 1.007
• .799959
• .592957
• .385955
• .178953

.028049 JUN 14 2007 17:49:16 NODAL SOLUTION STEP=1 SUB =6 TIME=1 /EXPANDED UZ (AVG) RSYS=0 DMX =1.835 SMN =-1.835 SMX =.028049

Numerical Numerical analyses of the patch strength analyses of the patch strength

30 40 50 60 70 80 90 10000 20000 30000 40000 50000 60000 70000 80000 90000 Number of Cycles Crack Length α (mm) D-C-1 D-C-2 D-C-HLU-1 D-C-HLU-2 D-C-VI-1 D-C-VI-2 D-C-HLU-3 D-C-HLU-4 Crack Gages Photos

Full Full-

• scale tests

scale tests

Co Co-

• Patch Consortium

Patch Consortium would like to would like to extend our Invitation extend our Invitation to join our project as to join our project as an invaluable an invaluable Stakeholder Stakeholder

Participation in the Stakeholder Forum is open to:

• Shipyards
• Ship owners
• Repair contractors
• Classification societies
• Insurance companies
• Authorities (port, highway, railway...)
• Charters

Potential benefits for the stakeholder:

• Information and immediate update about the development of a new state of the art repair

technology suitable for their structures

• Immediate, direct and first-hand access to the results of the project
• The chance to affect the development of this technology by contributing their corresponding

experience, towards a final product which will best fit to their demands and requirements

• The potential of creating new business activities
• The chance to participate in a forum together with other major European organizations and

explore the possibility of future collaborations

STAKEHOLDER FORUM

Stakeholder forum’s expectation:

• To agree on what is needed to approve composite patch repair as long-term repair and what

steps are needed to get there

• To identify opportunities and document the business case for using composite patch repair

(alternative repair methods, cost drivers, decision making)

• To create a dialogue on the permanence and (economic) viability of patch repairs
• To demonstrate that composite patch repairs or reinforcements can be environmentally stable

and therefore, that they can be used as long-term repair measures on steel marine structures and steel civil engineering infrastructure applications

• Information and update about their specific repair needs and particularities
• Feedback regarding intermediate project results and milestones
• Eventually, to make available their structures (ships, bridges, etc.) to apply and test the new

technology Possible forms of participation:

• Stakeholder Forum
• Online discussion
• Email discussion
• Making available one or more steel structure for Co-Patch repair and monitoring

contactus@co-patch.com www.co-patch.com