Category: Residual Stress Measurement
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Legacy Post: The Prime Room (Feb 2017)
Hill Engineering recently moved into a new facility in Rancho Cordova, CA. The new facility features a combination of laboratory, research and development, and office space; all of which are important as we work tenaciously to meet the needs of our current projects, while at the same time keeping an eye towards innovation and new…
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Legacy Post: Residual stress in linear friction welds (Dec 2016)
In a previous blog post we discussed, in general, issues related to residual stress in welding. In this post, we’ll follow up with a more detailed look at a specific welding application – linear friction welding of titanium alloys. Titanium alloys are widely used in aerospace applications for their high strength to weight ratio, good…
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Legacy Post: Residual stress in welding (Sep 2016)
Welding is a very common manufacturing process that is used to join materials together to form assemblies and systems. In many cases the welded joints are large, have reduced material properties (e.g., stress corrosion cracking resistance, fracture toughness), and contain defects. The welded joints tend to be critical locations in terms of design and sustainment.…
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Legacy Post: Happy Birthday to the Contour Method! (Aug 2016)
Today marks a major milestone in the field of residual stress measurement. The contour method, one of the most useful and advanced residual stress measurement techniques, was first successfully implemented on this date (August 16th) in 1999 by Mike Prime at Los Alamos National Laboratory. The most significant feature of the contour method is its…
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Legacy Post: International Light Water Reactor Materials Reliability Conference (July 2016)
Hill Engineering is presenting about residual stress in welding as part of the EPRI International Light Water Reactor Materials Reliability Conference and Exhibition. The objective of the conference is to gather the leading domestic and international nuclear engineers, materials scientists, and vendors in a forum for discussing and reporting the latest research regarding the reliability…
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Legacy Post: ASME 2016 Pressure Vessels & Piping Conference (July 2016)
Hill Engineering is proud to deliver a presentation as part of the David Smith Memorial Symposium at the upcoming ASME 2016 Pressure Vessels & Piping Conference. The presentation delivered at PVP2016 will include a summary of recent work on residual stress measurement for an excavate and weld repair mockup that was performed in collaboration with…
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Legacy Post: International conference on residual stress (June 2016)
Hill Engineering is proud to deliver a keynote presentation at the upcoming 2016 International Conference on Residual Stress. The presentation delivered at ICRS2016 will include an overview of the opportunities and challenges related to the effect of residual stresses on the performance of aircraft structure. The abstract text is presented below.
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Residual Stress Measurement Inside A Welded Pipe (May 2016)
The inner diameter of pipes is a critical location for design and performance assessment. Corrosion, fatigue, and stress corrosion cracking often attack the pipe inner diameter, which can lead to leakage and possible failure of the system. Tensile residual stresses in welded pipe joints can have a significant impact on structural integrity and performance because…
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Legacy Post: What is Residual Stress? (May 2016)
What is residual stress? That’s a very common question when you work at Hill Engineering. Many of our customers, friends, colleagues, and family members like to ask us questions about residual stress including: What is residual stress? How do you measure it? How does residual stress affect material performance? If you have questions about these…