Determination of plastic yield stress from spherical indentation slope curve
نویسندگان
چکیده
The indentation slope curve from a spherical indentation on elastic-plastic materials is examined. By comparing it with that of an linear elastic material of the same elastic properties, we found that the start point of plastic yielding for an elastic-plastic material can be easily located from the indentation slope curve. Based on this analysis, a simple but effective method is proposed tomeasure the plastic yield stress of very small samples from a spherical nano-indentation slope curve. © 2007 Elsevier B.V. All rights reserved.
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