Tag: residual stress
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Hill Engineering at ICRS 2025: Innovation and Expertise on Display
Hill Engineering had a strong presence at the International Conference on Residual Stress (ICRS) 2025, showcasing our precision engineering, residual stress testing expertise, and software suite. The DART (Device for Automated Residual stress Testing) took center stage, drawing steady crowds for live demonstrations of its automated near-surface measurement capabilities. Attendees saw firsthand how automation improves…
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Hill Engineering adds onsite hole drilling to ISO/IEC scope of measurements
Hill Engineering is proud to announce that onsite hole drilling residual stress measurements have been added to our growing scope of ISO/IEC 17025 accredited measurements. These are the same high-quality hole drilling measurements that Hill Engineering is known for, but now with the option of being ISO/IEC 17025 accredited, which may help to meet internal…
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Hill Engineering debuts new website
We’re proud to announce the launch of Hill Engineering’s newly redesigned website — built to provide a clearer, faster, and more intuitive experience for our customers and partners. Our new site reflects what we do best: innovative residual stress engineering grounded in precision and expertise. Visitors will now find our content better organized and easier…
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Residual stress measurement on a tube using EN2718
Hill Engineering was recently asked to perform a residual stress measurement on a tube specimen in accordance with EN2718, which defines the calculation of circumferential residual stress in circular tubes with a ratio D/a ≥ 10, where D is the tube outer diameter and a is the tube wall thickness. Before splitting the tube section…
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New article in International Journal of Fatigue
Hill Engineering recently collaborated with the Worcester Polytechnic Institute Integrative Materials Design Center to publish an article in International Journal of Fatigue, titled Fatigue crack growth mechanisms in similar and dissimilar aluminum friction stir welds: Residual stress, microstructure, and microhardness effects. The results of this work can be used to inform design decisions to improve…
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HE measurement data presented at upcoming ICRS 12
Hill Engineering recently performed various residual stress measurements on nickel and aluminum specimens to support a project from the Materials & Processes Engineering group at Pratt & Whitney. The results will be presented by Pratt & Whitney at the International Conference on Residual Stress, happening October 20-23, 2025, in Detroit, MI. If you are planning…
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Legacy Post: Building a Quality System (Feb 2017)
As was previously discussed, Hill Engineering was recently awarded ISO17025:2005 accreditation for our Quality System. Developing a Quality System that is compliant with ISO is a significant effort, and at Hill Engineering we took it as an opportunity to improve the quality and documentation of our laboratory residual stress measurement services. Here’s a look back…
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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 analysis (Oct 2016)
Material fabrication processes like forging, rolling, extrusion, quenching, additive manufacturing, machining, and welding lock spatially varying residual stress fields into structural materials. These residual stresses can influence the way that materials perform (e.g., fatigue, fracture, distortion, and corrosion). Hill Engineering has developed expertise to support many different types of residual stress analysis, which we apply…
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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…