Dr. Kannan Subramanian, Ph. D., P.E.: About the Author
Senior Associate, Stress Engineering Services Inc.

Dr. Kannan Subramanian, Ph. D., P.E.

Dr. Subramanian practices in the areas of stress analysis, fatigue, and fracture mechanics on pressure containing systems such as pressure vessels and piping. For over 16 years, Dr. Subramanian has served the petrochemical, refining, and utility industries by performing fitness-for-service assessments, pressure vessel designs, inspections, fabrication support, and piping & support designs. Dr. Subramanian is a member of the ASME Subgroup on Fracture Toughness (Sections II, VIII), and a member of the Subgroup on High Pressure Vessels (Section VIII Division 3) and holds a Professional Engineer License.

Is this you? Please help us keep this page up-to-date by occasionally submitting your updated information.

Published Articles

Developing a Fitness for Service Approach for Reduced Toughness Carbon Steel Piping, Flanges & Fittings
May/June 2018 Inspectioneering Journal
By Dr. Kannan Subramanian, Ph. D., P.E. at Stress Engineering Services Inc., John Norris, P.E. at Stress Engineering Services, Ralph E. King P.E. at Stress Engineering Services Inc., and Daniel Ayewah, P.E. at Stress Engineering Services Inc.

There is concern in the industry over recent findings of reduced toughness fittings and flanges at risk of brittle fracture. This article provides an overview; possible contributors; measures taken to address; and a proposed FFS approach to address the issue.

Inspectioneering Journal

Explore over 20 years of articles written by our team of subject matter experts.

Company Directory

Find relevant products, services, and technologies.

Job Postings

Discover job opportunities that match your skillset.

Case Studies

Learn from the experience of others in the industry.

Event Calendar

Find upcoming conferences, training sessions, online events, and more.

Industry News

Stay up-to-date with the latest inspection and asset integrity management news.


Read short articles and insights authored by industry experts.


Commonly used asset integrity management and inspection acronyms.

Asset Intelligence Reports

Download brief primers on various asset integrity management topics.


Watch educational and informative videos directly related to your profession.

Expert Interviews

Inspectioneering's archive of interviews with industry subject matter experts.