This week, we have uploaded a new vlog to Hill Engineering’s YouTube channel revolving around a particularly handy residual stress measurement technique. The hole drilling measurement method is one of our most popular residual stress measurement options, and involves the incremental drilling of a small hole into the surface of a specimen. Watch the video below and read on to learn more about the hole drilling method.
A hole drilling residual stress measurement involves incrementally drilling a small hole in a coupon. Doing so releases near-surface residual stress and causes the part to deform. The deformation is measured using a strain gage.
Tri-axial residual stress data is one of the benefits of hole drilling, especially when compared to other techniques that provide only one residual stress component. The relatively easy setup allows for quick measurement turnaround time, as well as difficult site access. In addition, this method is highly portable, and can be performed in our lab or in the field as needed.
We at Hill Engineering are experts at performing hole drilling residual stress measurements, and pride ourselves in our ability to develop solutions for difficult or unusual stress measurement needs. For more information or any further questions concerning our capabilities, please contact us.