Determination of anode resistance to ground is typically an integral part of cathodic protection system designs. However, complications in this process arise when anodes are located close together as mutual interference effects become important, often resulting in significant reduction in effective output. Such considerations can apply for anodes on structures, on sleds and between sleds.
BEASY will be again attending the Aircraft Airworthiness & Sustainability Conference where we will be presenting our fracture mechanics & corrosion risk assessment simulation software and services for aerospace structures. The conference will be held in Washington DC from April 22-26, 2019. In addition to presenting BEASYs comprehensive capabilities for crack growth assessment and simulation BEASY will be presenting new tools and technologies.
BEASY once again attended the annual NACE Corrosion Conference, which this year was held in Nashville from March 24 - 28, 2019. We were active in both the conference program and exhibit hall showing our corrosion modelling services and software.
New Paper and Products Presented at NACE
Cumulative Corrosion Damage
Predicting Cumulative Galvanic Corrosion Damage in Aircraft Structures
Robert Adey, Andres Peratta, John Baynham, Thomas Curtin
BEASY presented at the NATO AVT-303 Research Workshop on Corrosion Management Athens, Greece a new approach to predicting corrosion damage using computer simulation models. Not only the corrosion rate can be predicted for complex multi material structures but also the cumulative corrosion damage experienced by the structure during its service life. A demonstration of this new methodology (corrosion Service Life Model) was presented using environmental exposure data collected on board a naval vessel. The effects of crevice and pitting corrosion can also be included in this predictive model. The approach is applicable not only to aircraft but to a wide range of structures subject to atmospheric corrosion.
Aircraft Airworthiness & Sustainability Conference 2018
BEASY will be again attending the Aircraft Airworthiness & Sustainability Conference where we will be presenting our corrosion and fracture simulation services and software and services for aerospace structures.
The conference will be held in Jacksonville Florida from April 23-26, 2018.
We welcome you to come and visit our booth (No 210) to find out more about the capabilities of BEASY simulation products, or how BEASY modelling services can provide the solutions you need.
New Cathodic Protection Paper
Influence of Anode Location and Quantity for the Reduction of Underwater Electric Fields under Cathodic Protection
Y.-S. Kima, S.K. Leeb, J.-G. Kima School of Advanced Materials Engineering, Sungkyunkwan University and The 6th Research and Development Institute, Agency for Defense Development, Republic of Korea
Electric fields form around a ship due to current flow from cathodic protection (CP) systems, such as impressed current cathodic protection (ICCP) and sacrificial anode cathodic protection (SACP) Also, underwater electrical potentials (UEP), which can generate underwater electric signatures, may form even in the absence of CP systems due to galvanic corrosion between the hull (steel) and propeller (nickel aluminum bronze, NAB). A steady current flow around the hull of a ship can create an underwater electric field. Modern underwater mines are attuned to these electric field signatures and use them to detect and classify passing vessels.
BEASY CORROSION MANAGER 2018 Released
BEASY Corrosion Manager Software enables engineers to quickly assess the risk to components and structures of corrosion and the effectiveness of surface protection systems. Galvanic Corrosion is important as it occurs whenever dissimilar metals or certain types of composites (eg carbon based) are located close to each other.
This major new release provides many new capabilities and enhancements and is the result of extensive research and development.
BEASY Attended NACE CORROSION 2018
BEASY will once again be attending the annual NACE Corrosion Conference, which this year is being held Phoenix from April 15th -19th 2018. We will be active in both the conference program and exhibit hall showing our corrosion modelling services and software.
We welcome you to come and visit our booth (No 1512) to find out more about the capabilities of BEASY simulation products, or how BEASY modelling services can provide the solutions you need.
Fracture Mechanics and Risk Methods Used to Analyze the F-16 WCTB
An interesting paper was presented at the recent Aircraft Structural Integrity Conference held in Jacksonville in November 2017 by Mark Ryan of Lockheed Martin. The presentation describes a study of cracking found in a bulkhead structure. BEASY simulations were used to predict SIFs and crack shape evolution. Models were typically created from existing F-16 ABAQUS finite element models using the BEASY Abaqus Interface.
BEASY Paper Presented at NACE 2017
Early in 2017 at the NACE Corrosion Conference in New Orleans BEASY staff presented some recent developments and applications in the technical sessions and exchange groups. One of the papers with the title "Assessment of Effects of Cavities and Narrow Channels on CP Design in the Marine Environment" discussed the difficulties presented by the geometry of certain structures in obtaining adequate CP protection.
Published Corrosion Papers
There were a number of interesting papers published this year which featured BEASY Corrosion modelling, see below for details of two examples.
Optimization of the quantity, locations and output currents of anodes to improve cathodic protection effect of semi-submersible crane vessel
S.H.Xing, Y.Li, China University of Petroleum, Qingdao. H.Q.Song, Y.G.Yan, M.X.Sun. Luoyang Ship Material Research Institute, Qingdao
Optimization of the Cathodic Protection Design in Consideration of the Temperature Variation for Offshore Structures
M. S. Hong, J.-H. Hwang and J.H. Kim. Hyundai Heavy Industries Co., Ltd.,
Aircraft Corrosion Research Project
BEASY is working on a project supported by the United States Navy Sea Based Aviation Program and the Air Force to validate and develop computational corrosion modelling tools which can be used to predict the location and severity of corrosion within aircraft structures. The increased use by engineers of corrosion simulation tools during design and maintenance has the aim of improving the durability of an aircraft through better material selection, improved corrosion resistant design, and better predictive maintenance schemes. Improved aircraft durability will ultimately reduce fleet maintenance and life-cycle corrosion costs.
BEASY Attended NACE CORROSION 2017
BEASY once again attended the annual NACE Corrosion Conference, which this year was held between March 26-30, 2017 in New Orleans, Louisiana.
We were active in both the conference programme and exhibit hall showing our modelling services and software to support engineers with responsibility for corrosion aspects related to offshore and onshore structures, and also in the wider manufactured sector (aircraft, vehicles, etc).
BEASY at the Aircraft Airworthiness & Sustainment Conference
BEASY staff attended the 2016 AA&S Conference in Grapevine, TX, and met with many customers to discuss their applications and developments underway at BEASY. We had a lot of new interest at our booth this year in the areas of fatigue crack growth in residual stress fields and the modelling of corrosion related damage.
BEASY Attended EUROCORR 2016
BEASY were again at EUROCORR this year which was held in Montpellier, France, and we presented a number of papers on subjects including Internal Cathodic Protection of Offshore Sea Water Pump Caissons, Modelling Cathodic Protection/Prevention of Reinforcement in Concrete, and Using Predicted Corrosion Damage to Determine Stress Concentration, Fracture and Crack Growth.
BEASY Attended NACE Corrosion 2016
BEASY attended the NACE Corrosion Conference in Vancouver this March where we were active at the exhibition as well as presenting and participating in the technical sessions and exchange groups.
It was great to meet many friends at the conference and discuss how modelling can be used to improve and optimize CP systems and mitigate interference.
At this year's conference there were a number of papers presented by BEASY staff and customers and BEASY CEO Tim Froome also gave a presentation on modelling of well casings at the Technical Exchange Group meeting.
NEW BEASY 2016 Fatigue & Crack Growth Simulation Software release
BEASY is pleased to announce the release of a new version of the BEASY Fatigue & Crack Growth software. The primary benefits of this new release are that it provides a further enhancement of the software's automatic crack growth capabilities and major improvements in the over simulation times. For typical models, the remeshing time has been reduced by between 40% and 80%.
This release incorporates a significant improvement to the adaptive meshing routines. As a result cracks are inserted into models more quickly, even in areas of complex geometry. The crack surface mesh quality is also improved with a continuous quadrilateral mesh now created along the entire crack front. This further improves the accuracy of the SIF solution and provides greater stability when running fatigue crack growth simulations.
BEASY Attended MARELEC 2015
Dr Andres Peratta presented some recent conceptual work on the application of simulation modelling to predict the corrosion related potentials and electric and magnetic fields on and surrounding naval vessels at the International Conference On Marine Electromagnetics (MARELEC) in Philadelphia, USA. Modelling is used to predict the corrosion related potentials on the vessel itself, and the electric and magnetic fields surrounding the vessel. For naval vessels, modelling can be exploited to not only assess the performance of cathodic protection systems on the vessel (ICCP and sacrificial) but also the corrosion related magnetic fields as they make a significant contribution to the vessel signature.
BEASY attend ICAF 2015
Dr Sharon Mellings from BEASY recently attended the ICAF conference in Helsinki and presented a paper describing some recent work on the simulation of corrosion and fracture damage.
BEASY attended Aircraft Airworthiness & Sustainment (AA&S) Conference
BEASY staff attended the 2015 AA&S Conference in Baltimore in April and met with many customers to discuss their applications and update them about projects underway at BEASY.
We had a lot of new interest at our booth this year in the areas of fatigue crack growth in residual stress fields, fracture behaviour of composite plates as well as the modelling of corrosion related damage. There was also considerable interest in the BEASY Corrosion Manager software which is used to predict and simulate galvanic corrosion in structures such as aircraft.
Designing an ICCP System for the Hull of an Arctic Ice-Breaking Vessel
An interesting article was published in a recent issue of the NACE Materials Performance magazine.
Researchers used modelling tools to design effective cathodic protection systems that address challenging seawater conditions and coating damage from ice abrasion.
According to researchers Min-Jeong Lee, senior engineer, and Chae-Seon Lim, principal research engineer, both in the Material & Coating Research Department at Samsung Heavy Industries, Co., Ltd, South Korea, the performance of a CP system for a ship's external hull is dependent on several factors, including the geometry of the ship's hull, the resistivity of the surrounding seawater, the chemicals in the seawater, and the degree of coating damage. The ICCP design for many commercial vessels is often based on current density (CD) calculations and the designers' experience rather than an analytical method. For an icebreaker travelling in Arctic conditions, the researchers note, this traditional approach to CP design may not result in an adequate amount of corrosion protection for the hull in this environment.
For more information, please click here
BEASY attended NACE Corrosion March 2015
BEASY attended the NACE Corrosion Conference in Dallas this March where we were active at the exhibition as well as presenting and participating in the technical sessions and exchange groups.
It was great to meet many friends at the conference and discuss how modelling can be used to improve and optimize CP systems as well as providing further confidence in their performance as part of "due diligence" activities.
In addition to the activities by BEASY staff there were papers presented at NACE incorporating BEASY modelling.
BEASY Attend NACE Corrosion 2015
BEASY will once again be attending the annual NACE Corrosion Conference, which this year is being held in Dallas, Texas, between 16th and 19th March.
We will be active in both the conference program and exhibit hall showing our corrosion modelling services and software.
Please come and visit us at booth 21096, or if you would like to set up a meeting to discuss any aspect of BEASY's modelling and software services, please contact us
BEASY Attend Aircraft Airworthiness & Sustainment (AA&S) Conference
BEASY will also be attending the Aircraft Airworthiness & Sustainability Conference where we will be presenting our corrosion and fracture mechanics simulation solutions for aerospace structures. The conference, will take place between March 30th and April 2nd in Baltimore, Maryland.
We welcome you to come and visit us on booth 206 to find out more about the capabilities of BEASY simulation products, or how BEASY fracture modelling can provide the solutions you need. Alternatively to make an appointment to meet Tom Curtin at the conference, or to obtain further information, please contact us
The Influence of a Grounding System on Cathodic Protection
An article in December 2014's MP magazine looked at the effect of grounding on the cathodic protection (CP) potential distribution at an oil station, which had been studied using BEASY's corrosion and cathodic protection simulation software.
For more information, please click here
CP Design For Offshore Wind Turbine Foundations
An interesting article was published in the September 2014 issue of the NACE Materials Performance magazine. The article presents design considerations and some of the challenges a corrosion engineer encounters while designing a cathodic protection (CP) system for offshore wind turbine foundations. The authors were Sameer Ayyar, Jacob Jansson and Ruth Sorenson from COWI A/S Copenhagen, Denmark.
NEW BEASY 2014 Fracture & Crack Growth Software Release
BEASY Fracture & Crack Growth 10.0r16 provides a great number of new and advanced features that will enable engineers to improve fracture analysis and crack growth simulation to provide deeper design insight. The new release not only incorporates improvements and enhancements to the core BEASY Fracture & Crack Growth software but also to the model creation and visualisation tools as well as the Finite Element System Interfaces.
For more ... BEASY Fracture & Crack Growth Highlights
AIRCRAFT AIRWORTHINESS & SUSTANABILITY CONFERENCE 2014
BEASY will be exhibiting at the 2014 Aircraft Airworthiness & Sustainability Conference in Baltimore this April, presenting the latest developments in our Software and Services for Crack Growth Simulation and Corrosion Management in Aircraft Structures.
We welcome you to come and visit us at booth 404 to find out more about the capabilities of BEASY products, or how BEASY can help with your particular application. Alternatively to make an appointment to meet Tom Curtin at the conference, or to obtain further information, please click here or contact us
CORROSION MODELING SOLUTIONS SHOWCASED AT NACE 2014
BEASY participated in a very busy NACE Corrosion Conference in San Antonio last month. We were active in the conference program and exhibition hall, highlighting corrosion modeling services and software. It was good to see many friends and interested engineers visiting us at our booth. There were a number of papers presented during the Technical Program which featured some engineering projects carried out by the BEASY engineering services team and by customers. Details of the papers presented can be found here
Guy Bishop presented a paper entitled "Recent Signature Modelling Studies To Predict The Impact Of Hull Openings And ICCP System Anode Failure" at the recent MARELEC 2013 conference in Hamburg, Germany, July 16th-19th 2013.
The study used computer modelling to assess the robustness and sensitivity of the vessel ICCP system to the impact of anode failures, damage, coating degradation, hull opening and appendages etc. Of particular interest was the corrosion related electric and magnetic signatures. The study used some recent developments contained in the latest release of the BEASY Corrosion Defence modelling software. The results demonstrate how a computational modelling approach is one of the most effective tools for the design of corrosion control systems and optimization of ship electric and magnetic signatures.
Boundary Element Crack Growth Analysis Of A Riveted Fuselage Skin
Sharon Mellings, Robert Adey. CM BEASY Ltd. Roberto Citarella. University of Salerno
Sharon Mellings recently presented a paper on some recent developments to improve the modelling of cracks in aircraft structures. Generally aircraft structures are highly complex structures involving complex load paths, however cracks are often localised features involving just a few of the structural components. One particular location for damage is near to riveted connections where localised forces can lead to fatigue damage problems. These areas can be where stiffening ribs are attached to the aircraft skin, where two or more skin sections are overlapped or where holes in the skin are covered by additional doubler panels.
The paper presented a model which can be used to predict the crack growth path and residual strength of the structure. The simulation technology was tested by applying it to a large scale structure consisting of a number of panels stiffened by ribs and stringers. Virtual Testing of the structure was performed to predict the structural failure due to crack growth and the estimated fatigue life of the structure.
NEW BEASY 2013 Corrosion Software Release
BEASY have released new versions of its Corrosion modeling software which provide a great number of new and advanced
features that will enable engineers improve CP system performance and provide deeper design insight. The new release not only incorporates improvements and enhancements to the core BEASY Corrosion & CP software but also to BEASY GiD and the BEASY ICCP Optimisation tools. To find out more ....BEASY Corrosion Release Highlights
BEASY have also released a new version of its corrosion related electric and magnetic signature prediction software. To find out more ....BEASY Corrosion Defence Highlights
NACE Corrosion Conference 2013 Orlando USA
BEASY will be again attending the NACE Corrosion Conference in Orlando, Fl which will be held from March 17-21, 2013. We will be active in both the conference program and exhibition hall showing our corrosion modeling services and software.
More ...BEASY at NACE Corrosion 2013
Aluminium Alloy Corrosion of Aircraft Structures: Modelling and Simulation
BEASY have contributed to a new book on the modelling and simulation of corrosion in aircraft structures. The book is based on the research and development performed as part of the SICOM project which included Aircraft Manufacturers Airbus and EADS, BEASY and a consortium of university research centres
Coatings and Corrosion Technical Workshop
BEASY recently presented at the Lloyds Maritime Academy technical workshop on Corrosion & Coatings in London. Dr Bob Adey gave a presentation on the role of computer modelling in the design and monitoring of corrosion control systems.
Marine Corrosion Forum (MCF), London, 2012
John Baynham presented results of investigations into resistance to ground of various anodes and groups of anodes. He compared resistance values determined using analytic and approximate formulae and using simulation.
Oil and Gas Pipeline CP&AC/DC Interference Mitigation Seminar. China
Dr Bob Adey of BEASY was recently invited as one of the experts to present at the Oil and Gas Pipeline CP&AC/DC Interference Mitigation Seminar held in Langfang City Hebei Province China.