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We recently answered the question: What is residual stress? As a follow-up for all of our interested readers, today we are addressing the topic of compressive residual stress. Once you understand the concept of residual stress, which is stress that is locked in a material during manufacturing, it is important to distinguish between compressive residual…
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Hill Engineering recently traded residual stress measurements for friendly competition, hosting a lively board and video game night for team members and their families. The event brought colleagues together outside work hours (though still in the office), creating a relaxed atmosphere filled with camaraderie and a little bit of rivalry. Guests enjoyed plenty of pizza…
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In the early days of aviation, the concept of fatigue life was not a prime consideration in design. Aircraft did not typically have a long service life and were designed based on ultimate strength. Early aircraft failures occurred due to component/system failures, combat damage, and pilot error. Aircraft did not typically last long enough for…
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Hill Engineering is looking forward to the Residual Stress Technology Conference 2026, taking place September 28 through October 1 in Quebec City, Canada. This dynamic event brings together engineers, researchers, and industry leaders to explore the latest advances in residual stress science and their impact on material performance. RSTC 2026 marks an important evolution in…
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Legacy Post: How Tensile Testing Works: A Brief Introduction to Material Strength Testing (Aug 2017)
A tensile test is a standard method used by material scientists and engineers to determine important material strength and ductility properties. For example, tensile tests can be used to measure the yield strength of a material, which is defined as the stress at which a material begins to deform plastically. Hill Engineering has ample experience…
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Even on vacation, it’s hard to pass up a visit to a science museum. Earlier this year, I had the chance to visit the Science and Industry Museum in Manchester, England, one of the world’s first industrial cities. Cotton was the commodity that helped this city grow in the early 19th century, giving rise to…
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Hill Engineering will be presenting at the upcoming Annual 2017 Conference and Exposition on Experimental and Applied Mechanics, which is organized by the Society of Experimental Mechanics (SEM). The conference will run from June 12, 2017 through June 15, 2017 and will be located in Indianapolis, IN. We invite you to come see us. We…
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The lives of Hill Engineering team members may be all about residual stress, but when it’s time to relieve stress, we’re taking it to the courts. The pickleball courts, that is. Hill Engineering’s Teresa and Ryan have taken their teamwork beyond the office and onto the realm of America’s hottest new pass-time. Along with Ryan’s…
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The Lincoln Award is named in honor of Dr. John W. (Jack) Lincoln, the U.S. Air Force’s first Technical Advisor for Aircraft Structural Integrity. An internationally recognized expert in structural integrity, fatigue analysis, and aviation safety, Dr. Lincoln is credited with developing the Aircraft Structural Integrity Program (ASIP) that is now institutionalized throughout the Air…
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In a recent blog post we discussed the question: what is residual stress. As a follow-up, today we are addressing the topic of residual stress calculation. Once you understand the concept of residual stress and are ready to account for its effect on material performance it’s important to quantify the residual stress that is present…
