Conference Papers

Conference Papers

Conference Papers

As a FRP Subject Matter Expert, Geoff Clarkson frequently speaks at conferences to teach people about the benefits of FRP, assisting customers to make the right design decisions and explain UltraAnalytix, our non-destructive and non-intrusive FRP Testing System.  UltraAnalytix structural information about fiberglass reinforced plastic (FRP) – similar to Acoustic Emission – without the significant limitations.  Through our proprietary, advanced methods, readings taken using conventional ultrasonic equipment are used by UltraAnalytix to determine the structural condition and capacity of the material surveyed, including the presence of delamination, some resin changes and condition of the resin-to-reinforcement interface.  This differs significantly from conventional ultrasonic evaluation of metallic components – there are no known equivalent methods or standards for metallic evaluations.

Below is a selection of papers presented by Geoff Clarkson at conferences around the world.

2017

Using Ultrasonic Technique to Determine Fitness for Service of FRP Equipment for Chemical Handling Applications, Corrosion Conference & Expo, March 26-30, 2017

Authors: Pradip Khaladkar, PECT and Geoff Clarkson, UTComp

Summary: Fiberglass reinforced plastic materials are well suited to a wide variety of chemical handling equipment where resistance to corrosion is required. A significant impediment to adoption of these materials for many suitable applications lies with the inability to do a fitness for service determination after the equipment and piping have been in service. This is largely due to the lack of effective non-destructive
and non-intrusive techniques for plastic materials. This paper presents a case study of a fiberglass
reinforced plastic scrubber which was evaluated with a novel ultrasonic technique followed by a
destructive evaluation for retained mechanical properties and corrosion barrier condition. When
compared, the results showed good correlation. Although the FRP unit was already discarded this
study indicated that significant life had still remained.

2016

Using Ultrasonic Technique to Determine Fitness for Service of FRP Equipment for Chemical Handling Applications, CorCon 2016 Corrosion Conference & Expo, Sept. 18-21, 2016

Authors: Pradip Khaladkar, PECT and Geoff Clarkson, UTComp

Summary: Fiberglass reinforced plastic materials are well suited to a wide variety of chemical handling equipment where resistance to corrosion is required. A significant impediment to adoption of these materials for many suitable applications lies with the inability to do a fitness for service determination after the equipment and piping have been in service. This is largely due to the lack of effective non-destructive and non-intrusive techniques for plastic materials. This paper presents a case study of a fiberglass reinforced plastic scrubber which was evaluated with a novel ultrasonic technique followed by a destructive evaluation for retained mechanical properties and corrosion barrier condition. When compared, the results showed good correlation. Although the FRP unit was already discarded this study indicated that significant life had still remained.

Model to Optimize the Design of Fiberglass Reinforced Plastic in Chlorine Dioxide Service, PacWest Conference, June 8-11, 2016

Summary: Fiberglass reinforced plastic (FRP) is used for tanks and pipe to contain a wide range of corrosive vapors and liquids – in many cases with superior performance and lower cost compared to stainless steels.  When designing metallic tanks and piping, the dominant and simplest damage mechanism is thickness loss due to corrosion and design standards are well developed. Assessment of steel structures is based primarily on the existing fitness for service (FFS) of the steel.   FRP experiences a number of simultaneous damage mechanisms that affect its structural capacity.  Design conventions and conventional practice for FRP defines the layers nearest the process-side of the FRP as the only component that is important for its fitness for service.  Based on extensive inspection history in similar services, this paper presents a model for design of FRP in chlorine dioxide service to optimize the life and maintenance of FRP assets.

Non-intrusive, non-destructive FRP Inspection, NACE Corrosion International, March 8-10, 2016.

Summary: Fiberglass reinforced plastic (FRP) is used for tanks and pipe to contain a wide range of corrosive vapors and liquids – in many cases with superior performance and lower cost compared to stainless steels.  When designing metallic tanks and piping, the dominant and simplest damage mechanism is thickness loss due to corrosion and design standards are well developed. Assessment of steel structures is based primarily on the existing fitness for service (FFS) of the steel.   FRP experiences a number of simultaneous damage mechanisms that affect its structural capacity.  Design conventions and conventional practice for FRP defines the layers nearest the process-side of the FRP as the only component that is important for its fitness for service.  Based on extensive inspection history in similar services, this paper presents a model for design of FRP in chlorine dioxide service to optimize the life and maintenance of FRP assets.

2015

UTComp-City of Ottawa Case Study, Water Environment Federation’s Annual Technical Exhibition and Conference (WEFTEC), 2015

UAB: Innovative Nondestructive Ultrasonic Testing and Analysis for FRP Piping, CAMX 2015

York U: Experimental Validation of Ultrasonic Nondestructive Evaluation of Residual Service Life of Fibreglass Reinforced Plastic Structures, CAMX 2015

Ultrasound Responses and Non-Destructive Testing for Open-Mold Glass Reinforced Thermosets, Geoff Clarkson, CAMX 2015

2014

Fiberglass Reinforced Plastic Assets – Corrision Barrier Condition and Remaining Service Life Predictions, PacWest Conference 2014

Predictive Maintenance of Fiberglass Reinforced Plastic Equipment, Sulphur 2014 30th International Conference & Exhibition.

Baseline Values for Non-Destructive Structural Evaluation of Glass Reinforced Composites, CAMX – The Composites and Advanced Materials Expo, October 13-16, 2014

A Key to Fiberglass Reinforced Plastic (FRP) Longevity: Inspection and Integrity Monitoring, NACE International 2014. 

2013

Determining Suitability for Service, NACE International 2013.

Ultrasonic Condition Monitoring of Fiberglass Reinforced Plastic Equipment, PacWest Conference 2013

corrosion 2017corcon-2016

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