Inspectioneering

Douglas Marriott: About the Author
Staff Consultant, Stress Engineering Services Inc.


Douglas Marriott

Doug Marriott is a part time Staff Consultant with Stress Engineering Services, having retired as a Principal with the company in 2006. He began his career in South Africa in 1962, earning a degree in civil engineering from the University of Natal, followed by a Ph.D in Mechanical Sciences from Cambridge University. He then spent 25 years teaching, consulting, and doing research in high temperature applications, fracture and failure prevention. Doug joined Stress in 1992 as a Staff Consultant, dealing with problems in mechanics and materials associated with design and failure prevention in components ranging from plastic consumer products to pressure equipment. He has continued these activities in various capacities to the present day. 

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Published Articles

The Use of Miniature Test Specimens in  Fitness-for-Service Evaluation
May/June 2016 Inspectioneering Journal
By Douglas Marriott at Stress Engineering Services Inc., Shannon Read at Stress Engineering Services Inc., and Arun Sreeranganathan at Stress Engineering Services Inc.

Aging equipment, along with more aggressive service, makes it more important than ever to carry out fitness-for-service (FFS) assessments in support of run/repair/replace decisions. Testing material in the service-degraded condition enables quantification of the material condition and provides increased accuracy in FFS evaluations of these components.


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