A study on robust indentation techniques to evaluate elastic–plastic properties of metals
Reads0
Chats0
TLDR
In this article, the authors studied spherical indentation based on numerical analysis and experiment, to develop robust testing techniques to evaluate isotropic elastic-plastic material properties of metals, where the representative stress and plastic strain concept is critically investigated via finite element analysis, and some conditions for the representative values are suggested.About:
This article is published in International Journal of Solids and Structures.The article was published on 2010-03-01 and is currently open access. It has received 114 citations till now. The article focuses on the topics: Indentation & Strain hardening exponent.read more
Citations
More filters
Journal ArticleDOI
Determining individual phase properties in a multi-phase Q&P steel using multi-scale indentation tests
TL;DR: In this article, a new inverse method was developed to predict the stress-strain behaviors of constituent phases in a multi-phase steel using the load-depth curves measured in nanoindentation tests combined with microhardness measurements.
Journal ArticleDOI
Finite element analysis of spherical indentation to study pile-up/sink-in phenomena in steels and experimental validation
V. Karthik,P. Visweswaran,Anand Bhushan,D. N. Pawaskar,K.V. Kasiviswanathan,T. Jayakumar,Baldev Raj +6 more
TL;DR: In this article, a 1.0 mm diameter tungsten carbide ball to penetration depths of around 100-200 μm is modeled using finite element (FE) method and analyzed for three steels having different yield stress and strain hardening exponent.
Journal ArticleDOI
Determining engineering stress-strain curve directly from the load-depth curve of spherical indentation test
Baoxing Xu,Xi Chen +1 more
TL;DR: In this paper, the authors show that the engineering stress-strain curve can also be directly converted from the load-depth curve of a deep spherical indentation test via new phenomenological formulations of the effective indentation strain and stress.
Journal ArticleDOI
Evaluation of the tensile properties of a material through spherical indentation: definition of an average representative strain and a confidence domain
Charbel Moussa,Charbel Moussa,Xavier Hernot,Olivier Bartier,Guillaume Delattre,Gérard Mauvoisin +5 more
TL;DR: In this article, a new method for the determination of the hardening law using the load displacement curve, F-h, of a spherical indentation test is developed. But the method is based on the study of the error between an experimental indentation curve and a number of finite elements simulation curves.
Journal ArticleDOI
A simple method to evaluate anisotropic plastic properties based on dimensionless function of single spherical indentation – Application to SiC whisker-reinforced aluminum alloy
TL;DR: In this paper, an evaluation method for anisotropic plastic properties is proposed using dimensional analysis of single spherical indentation, where the authors consider a plastically aplastic material, whose properties are different among orthogonal directions (e.g. longitudinal and transverse direction).
References
More filters
Journal ArticleDOI
An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more
TL;DR: In this paper, the authors used a Berkovich indenter to determine hardness and elastic modulus from indentation load-displacement data, and showed that the curve of the curve is not linear, even in the initial stages of the unloading process.
Book
The mathematical theory of plasticity
TL;DR: In this paper, the solution of two-dimensional non-steady motion problems in two dimensions is studied. But the solution is not a solution to the problem in three dimensions.
Journal ArticleDOI
The relation between load and penetration in the axisymmetric Boussinesq problem for a punch of arbitrary profile
TL;DR: In this article, a solution of the axisymmetric Boussinesq problem is derived from which are deduced simple formulae for the depth of penetration of the tip of a punch of arbitrary profile and for the total load which must be applied to the punch to achieve this penetration.
Journal ArticleDOI
Indentation size effects in crystalline materials: A law for strain gradient plasticity
William D. Nix,Huajian Gao +1 more
TL;DR: In this article, the indentation size effect for crystalline materials can be accurately modeled using the concept of geometrically necessary dislocations, which leads to the following characteristic form for the depth dependence of the hardness: H H 0 1+ h ∗ h where H is the hardness for a given depth of indentation, h, H 0 is a characteristic length that depends on the shape of the indenter, the shear modulus and H 0.
Book
The Hardness of Metals
TL;DR: Hardness measurements with conical and pyramidal indenters as mentioned in this paper have been used to measure the area of contact between solids and the hardness of ideal plastic metals. But they have not yet been applied to the case of spherical indenters.
Related Papers (5)
An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more
A new method to extract the plastic properties of metal materials from an instrumented spherical indentation loading curve
Yanping Cao,Jian Lu +1 more