| Abstract Scope |
There is significant interest in being able to relate nanoindentation data to uniaxial stress-strain curves. Relying on nanoindentation instead of typical uniaxial testing has the potential to develop a high through-put analysis method, capable of evaluating extremely brittle materials that are difficult to test in uniaxial testing. In contrast to standard macro-scale testing, the sample requirements are largely simplified. The main requirement for adequate nanoindentation samples is a flat, clean, and ideally polished surface finish. Many have attempted to develop methods to relate indentation data to uniaxial stress-strain data using a variety of indenter tip shapes, notably including Berkovich, spherical, and flat-ended punches. However, stress-strain curves developed from indentation data are rarely compared directly to experimentally determined uniaxial stress-strain curves. In this poster, several proposed methods for determining tensile stress-strain curves from nanoindentation data are evaluated using as-received and annealed C10100 copper samples tested both in tension and by nanoindentation. |