Residual stress production quality control

Hill Engineering is presenting about residual stress production quality control at the upcoming 2017 North American Residual Stress Summit in Dayton, OH. The Residual Stress Summit brings together residual stress users and developers. Hill Engineering’s presentation will include an overview of ongoing work related to quality control processes for residual stress in manufacturing. The abstract text is presented below. Continue reading Residual stress production quality control

Prime Room Ribbon Cutting

Hill Engineering’s new facility in Rancho Cordova, CA features a combination of laboratory, research and development, and office space. We have proudly named the primary conference room in our facility the Prime Room, a fitting tribute to a special Hill Engineering collaborator, the inventor of the contour method, and inspirational figure, Mike Prime. We were recently honored to have Mike Prime stop by for a ribbon cutting ceremony celebrating the opening of the Prime Room. Continue reading Prime Room Ribbon Cutting

Engineered Residual Stress Implementation workshop

Hill Engineering is proud to support the USAF and their objective to advance damage tolerance analysis methods through the Engineered Residual Stress Implementation (ERSI) workshop. At the most recent ERSI meeting, Hill Engineering met with other stakeholders in the USAF aircraft community to review progress over the past year towards implementation of engineered residual stress in the USAF fleet. Continue reading Engineered Residual Stress Implementation workshop

Fatigue crack growth rate data fitting

Hill Engineering is presenting about material data and fitting processes for fatigue property assessment at the AFGROW Users Workshop 2017 in Layton, UT. The purpose of the workshop is to provide a forum for users to share ideas, demonstrate how AFGROW is being used for practical cases, and discuss future development. Hill Engineering’s presentation will include a summary of a structured material fitting process and how the fit to the fatigue crack growth property data can affect fatigue analysis results. If you are in Layton for the meeting, please feel free to make an appointment to stop by Hill Engineering’s new office. The abstract text is presented below. Continue reading Fatigue crack growth rate data fitting

AFGROW Users Workshop – The Future of BAMF

Hill Engineering is presenting about fatigue analysis at the upcoming AFGROW Users Workshop 2017 in Layton, UT (home of Hill Engineering’s new office). The purpose of the workshop is to provide a forum for users to share ideas, demonstrate how AFGROW is being used for practical cases, and discuss future development. Hill Engineering’s presentation will include a summary of the BAMF software and how it is used to support fatigue crack growth analysis. The abstract text is presented below. Continue reading AFGROW Users Workshop – The Future of BAMF

ERS-toolbox® at AFGROW Users Workshop

Hill Engineering is presenting an overview of our ERS-toolbox® software at the upcoming AFGROW Users Workshop 2017 in Layton, UT. The purpose of the workshop is to provide a forum for users to share ideas, demonstrate how AFGROW is being used for practical cases, and discuss future development. Hill Engineering’s presentation will include an overview of past work where ERS-toolbox® was used to support development of laser peening surface treatments to enhance performance of materials using compressive residual stress. The abstract text is presented below. Continue reading ERS-toolbox® at AFGROW Users Workshop

Happy birthday to the contour method

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 ability to generate detailed two-dimensional residual stress maps like the one shown below. Please join us in wishing the contour method a very happy 18th birthday! Continue reading Happy birthday to the contour method

Tensile test

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 performing tensile tests, and other mechanical property tests, in pursuit of our passion to maximize the potential of materials. Continue reading Tensile test

Lincoln Award

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 Force and recognized worldwide as the foundation for aircraft structural safety. Continue reading Lincoln Award

Residual stress calculation

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 in your material. Residual stress calculation can include a variety of different topics. Continue reading Residual stress calculation