Show simple item record

dc.contributor.authorMa, Z.
dc.contributor.authorZhou, Y.
dc.contributor.authorLong, S.
dc.contributor.authorZhong, X.
dc.contributor.authorLu, Chunsheng
dc.identifier.citationMa, Z.S. and Zhou, Y. C. and Long, S.G. and Zhong, X.L. and Lu, C. 2012. Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters. Mechanics of Materials. 54: pp. 113-123.

The load-displacement curve in indentation is widely used to extract elastoplastic properties of materials. It is believed that such a measurement is non-unique and a full stress-strain curve cannot be obtained with a sharp indenter or even plural and spherical indenters. By introducing a ratio of the additional residual area to the area of a profile indenter, we proposed a new set of dimensionless functions. Based on these functions and finite element simulations, analytical expressions were derived between indentation data and elastoplastic properties. It is shown that this method can effectively distinguish highly elastic and plastic solids (Cheng and Cheng, 1999) and mystical materials (Chen et al., 2007), which provides a useful guideline for properly using the indentation technique to measure elastoplastic properties of materials with conical and pyramidal indenters.

dc.publisherElsevier Ltd
dc.subjectFinite element simulation
dc.subjectMechanical properties
dc.titleCharacterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters
dc.typeJournal Article
dcterms.source.titleMechanics of Materials

NOTICE: this is the author’s version of a work that was accepted for publication in Mechanics of Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Mechanics of Materials, Volume 54, November 2012, Pages 113-123,

curtin.accessStatusOpen access

Files in this item


This item appears in the following Collection(s)

Show simple item record