Nanomechanical Testing Webinars

Algorithms for Nanoindentation Strain Rate Jump Testing Using the Hysitron TI 980

Learn more about best practices for localized strain rate jump testing at the nanoscale

Learn how to perform and analyze strain rate jump tests to understand thermally activated deformation processes

This webinar will discuss testing and analysis methods for SRJ tests using the Bruker Hysitron TI 980 Nanoindenter. Functions for necessary data correction were validated using single-crystalline BCC tungsten, but extension to other material systems will also be discussed.


Thursday, March 30 — 9AM PDT | 12PM EDT | 5PM GMT+1

Investigate Strain Rate Jump Testing Methods

Thermally activated deformation processes control plasticity and fracture in many materials, including body-centered cubic (BCC) metals, and can be probed via the strain rate dependence of their yield stress. One technique to probe this is the strain rate jump test, in which the strength change at an abrupt change in applied strain rate is measured, which has traditionally been performed on the bulk scale, but requires large samples and cannot measure local properties. Nanoindentation solves both of those issues.

This webinar will discuss testing methods for strain rate jump tests using the Bruker Hysitron TI 980, as well as functions to perform necessary corrections to the data. The functions were validated using single crystalline BCC tungsten as a model material, so application to other material systems will be discussed.

Find out more about the technology featured in this webinar or our other solutions for Nanomechanical Testing:


Kevin Schmalbach, Ph.D., Post Doctoral Scientist, Bruker

Douglas Stauffer, Ph.D.

Senior Manager of NI Applications Development

Douglas Stauffer, Ph.D. is the Senior Manager for Applications Development for the Hysitron product lines at Bruker Nano, Inc. In short, he manages the internal testing laboratory, engages in collaborations, and assists with sales-related activities with respect to nanomechanical testing techniques. He works with a wide variety of professionals in his role, ranging from professors studying incipient events at very small length scales to industrial manufacturing of 300mm wafers for logic and memory

His current research focus is on developing new techniques for understanding structure and processing relationships with regard to nanomechanical performance. These relationships and techniques can then be applied to a wide range of applications that include both applied and fundamental studies for assessing component and microstructure capabilities to resist failure. These techniques include in and ex-situ testing and the development of in operando type experiments, to gain insight into the role that plasticity and fracture play in the varying failure regimes under operating conditions.

Douglas received his Ph.D. in Materials Science from the University of Minnesota in 2011. He then joined the R&D department as a Senior Staff Scientist working in instrumentation and applications at Hysitron. Hysitron was acquired by Bruker Nano in January 2017.