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Engineering Critical Assessment

Technical Groups 15 June 2023

Structural Integrity Technical Group: Back-to-Basics Webinar: Engineering Critical Assessments

This Back-to-Basics event will be useful for all who want to find out how Engineering Critical Assessments (ECAs) are performed, the input data needed and the pitfalls that can be associated with them.

This event will also be a useful refresher for specialists currently involved with ECAs and may also provide an opportunity to clarify points or concerns with current ECA methods.

This webinar will be of interest to:

Materials, Welding and NDT Specialists, and all others who are interested in structural integrity.

Speaker Panel and Presentations

Matthew Haslett, Team Leader – Environmental Testing, Fatigue and Fracture Integrity Management Section, TWI Ltd - What is ECA and what input data is needed?

Dr Rob Kulka, Section Manager - Asset Integrity Management, TWI Ltd - Links to other procedures and misuse of ECA

Dr Yin Jin Janin, Principal Project Leader – Fatigue and Fracture Integrity Management, TWI Ltd - ECA Approach and Procedure


Professional Members of The Welding Institute: £25 + VAT (£30)
Industrial Members of TWI: £25 + VAT (£30)
Non-members: £95 + VAT (£114)
Retired Members: £25 + VAT (£30)
Students: £25 + VAT (£30)
TWI Training Customers: £75 + VAT (£90)
TWI Training School Customers with professional membership: Free. Please contact us with your Training Customer ID Number

TWI Staff - please contact Hafiza Rahman if you wish to register.

Please note that payment must be made before the event in order to receive the joining instructions for the event.


If you can't join us on the day, you can still access the recording of the webinar and the presentations by registering ahead of the event.*

*presentation dissemination is dependent on presenter consent.


Registering on this Technical Group webinar as a non-member or a TWI Training Customer without Professional Membership gives you full Associate Membership (AWeldI) for one year. To activate your membership, just complete the highlighted fields on the event registration form.

You will also benefit from:

  • Discounted registration fees for Technical Group events (£25 + VAT)
  • Free attendance at Branch events
  • Access to our knowledge database including our library and information services.


  • Information transfer from experts
  • Discussion, questions and answers on the specific topics
  • A broader understanding of the extent of standards in the industry
  • Attendance of this event qualifies for CPD


The Welding Institute awards points towards CPD for delegates attending this webinar. Every hour attendance of an event will earn 2 points towards your continuing professional development.

Please contact if you require a certificate of attendance towards your continuing professional development.

Meet the team

Matthew Haslett CEng MIMechE FWeldI IWE - Team Leader - Environmental Testing

Matthew Haslett CEng MIMechE FWeldI IWE

Team Leader - Environmental Testing

Matthew is Team Leader - Environmental Testing in the Fatigue and Fracture Integrity Management Section, with experience in mechanical and structural engineering. His main areas of expertise lie in fracture toughness testing, mechanical testing, Engineering Critical Assessment (ECA), full-scale testing and bespoke mechanical testing.

Matthew also organises TWI’s training course on Structural Integrity Assessment to BS 7910 and lectures on the Design and Construction module of the EWF/IIW Welding Diploma.

Rob Kulka EngD CEng MIMechE - Section Manager - Asset Integrity Management

Rob Kulka EngD CEng MIMechE

Section Manager - Asset Integrity Management

Rob Kulka is a chartered mechanical engineer and undertook an engineering doctorate at the University of Manchester, developing the understanding of fracture mechanics behaviours in complex configurations. He spent ten years as a structural integrity expert with Frazer-Nash Consultancy and is now Section Manager for Asset Integrity Management at TWI.

Rob has significant experience in analysis of material performance and the demonstration of structural integrity of components in the nuclear, power, defence, petrochemical, and transport industries, through the use of complex computational analysis, defect tolerance and design code assessments.



Yin Jin Janin - Principal Project Leader – Fatigue Integrity Management

Yin Jin Janin

Principal Project Leader – Fatigue Integrity Management

Yin Jin joined TWI in July 2012 as a project leader in Fracture Integrity Management Section. She manages projects that involve testing as well as the applications of ECAs of engineering structures especially those containing non-standard flaw geometry. She is a member of BS 7910n WEE37 main committee and Fracture Panel. She is also Codes and Standards Theme Lead of FESI. As a member of BS and ISO fracture toughness testing committee, she works closely with Henryk Pisarski to lead the development of testing procedures.

Yin Jin's history with TWI dated back to 2008 when she joined the Numerical Modelling and Optimisation Section as a Research Engineer through the Nuclear Engineering Doctorate Programme of University of Manchester. Her EngD work, under the supervision of Prof Stuart Lyon and Prof John Wintle, covered areas of corrosion and materials science, residual stress measurement as well as computational simulation of welds.

Prior to 2008, Yin Jin was a Principal Process Engineer at a foundry in Manchester, leading and developing techniques to improve casting process and product quality. Yin Jin is a Malaysian born Chinese and came from Borneo, Malaysia.

For more information please email: