Hill Engineering featured in Railway Track & Structures – August 2022

We recently learned that some hole drilling method and contour method results were highlighted in the August 2022 issue of Railway Track and Structures. The article is titled Residual stress investigation of ultrasonic impact treated and untreated thermite welds.

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Presentation: 1st ASTM Bearing and Transmission Steels Technology Symposium

Hill Engineering will be presenting at the upcoming 1st ASTM Bearing and Transmission Steels Technology Symposium in New Orleans, LA on November 2nd through the 16th. We invite you to come see us.

Held at the Sheraton New Orleans Hotel, the objective of the symposium is to bring together rolling bearing and transmission steel practitioners from the steel industries, rolling bearing and transmission product producers, research and development institutes and academia, to present the latest steel technologies and developments.

The abstract for Hill Engineering’s presentation, titled Efficient Residual Stress Quantification in M50NiL Bearing Steel, is included below.

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New Publication: Measurement-driven, model-based estimation of residual stress and its effect on fatigue crack growth. Pt 2: fatigue crack growth testing and modeling

Hill Engineering recently published new research outlining a approach for predicting fatigue crack growth in the presence of residual stress fields. The paper is titled Measurement-driven, model-based estimation of residual stress and its effect on fatigue crack growth. Part 2: fatigue crack growth testing and modeling and appears in International Journal of Fatigue. The abstract text is available here along with a link to the publication.

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New Publication: Measurement-driven, model-based estimation of residual stress and its effects on fatigue crack growth. Pt 1: validation of an eigenstrain model

Hill Engineering recently published new research outlining a approach for predicting fatigue crack growth in the presence of residual stress fields. The paper is titled Measurement-driven, model-based estimation of residual stress and its effects on fatigue crack growth. Part 1: validation of an eigenstrain model and appears in International Journal of Fatigue. The abstract text is available here along with a link to the publication.

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New Publication – Near Surface Residual Stress Measurement Using Slotting

Hill Engineering recently published new research presenting an innovative new way to measure near-surface residual stress more reliably than conventional techniques. The paper is titled Near Surface Residual Stress Measurement Using Slotting and appears in Experimental Mechanics. The abstract text is available here along with a link to the publication.

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ASIP 2021 Presentation: Development of a Residual Stress Standard

At the recent United States Air Force Structural Integrity Program Conference (ASIP) in Austin, TX, Hill Engineering co-authored a presentation titled Development of a Residual Stress Standard. The Aircraft Structural Integrity Program (ASIP) Conference is specifically designed to bring together the world leaders in the area of aircraft structural integrity and to disseminate information on state-of-the-art technologies for aircraft structures in both the military and civilian fleets. Below is the abstract from the presentation along with a link to the full conference slides.

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Contour Method 101: Two-Dimensional Mapping of Residual Stress

We talk a lot about the residual stress measurement techniques we employ at Hill Engineering. One of the most commonly used is the Contour Method! Invented in the year 2000, and patented by Los Alamos National Laboratory, the contour method measures 2D residual stresses over a planar surface.

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New Publication – Measurement Layout for Stress Mapping Using Slitting

Hill Engineering recently published new research detailing our efforts to optimize the experimental technique for our PSR Biaxial mapping process, which generates a 2D map of residual stress. The paper is titled Measurement Layout for Residual Stress Mapping Using Slitting and appears in Experimental Mechanics. The abstract text is available here along with a link to the publication.

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In the Field with Ryan: On-site Residual Stress Measurements

While we at Hill Engineering take pride in our ability to perform high quality residual stress measurements in our laboratory, we recognize that not all parts and projects can be easily transported.

That’s where we bring the measurements to you with our Residual Stress Field Team. Our laboratory engineers are capable of performing residual stress measurements across the globe, and have done so on many occasions.

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Special Issue of Experimental Mechanics

We are in the process of organizing a special Issue of Experimental Mechanics, the journal of the Society for Experimental Mechanics. The issue will be devoted to Advances in Residual Stress Technology in honor of Prof. Drew Nelson of Stanford University, for teaching several thousand engineering students about the importance of residual stresses and for developing new optically based approaches for measurement of residual stresses, along with studies of residual stress effects on fatigue. To date, we have accepted proposed paper topics from almost 20 world-leading authors from around the globe.

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