Comparative assessment of Young’s modulus measurements of metal–ceramic composites using mechanical and non-destructive tests and micro-CT based computational modeling

•Cr–Al2O3–Re composites (MMC) were processed by Spark Plasma Sintering.•Young’s modulus was measured by mechanical, ultrasonic and resonance methods.•Computational micro-CT based FEM model of Young’s modulus was developed and verified.•Ultrasonic measurements are closest to numerical results by micr...

Full description

Saved in:
Bibliographic Details
Published in:Computational materials science 2013-09, Vol.77, p.19-30
Main Authors: Węglewski, W., Bochenek, K., Basista, M., Schubert, Th, Jehring, U., Litniewski, J., Mackiewicz, S.
Format: Article
Language:English
Subjects:
Applied sciences
Assessments
Chromium
Computation
Elastic modulus
Elasticity. Plasticity
Exact sciences and technology
Finite element analysis (FEA)
Finite element method
Mathematical models
Mechanical and nondestructive techniques
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metal matrix composites
Metallurgy
Metals. Metallurgy
Micro-CT based FE model
Modulus of elasticity
Scanning acoustic microscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Cr–Al2O3–Re composites (MMC) were processed by Spark Plasma Sintering.•Young’s modulus was measured by mechanical, ultrasonic and resonance methods.•Computational micro-CT based FEM model of Young’s modulus was developed and verified.•Ultrasonic measurements are closest to numerical results by micro-CT based FEM model. It is commonly known that the available non-destructive and mechanical methods of the Young modulus measurement yield different results. This paper presents comparison of the results of experimental determination and numerical modeling of the Young modulus of Cr–Al2O3–Re composites (MMC) processed by a powder metallurgical method (SPS). In the computational model a finite element analysis is combined with images of the real material microstructure obtained from micro-computed tomography (micro-CT). Experimental measurements were carried out by four testing methods: three-point bending, resonance frequency damping analysis (RFDA), ultrasonic pulse-echo technique, and scanning acoustic microscopy. The paper also addresses the issue which of the four experimental methods at hand gives results closest to the theoretical predictions of the micro-CT based FEM model.
ISSN:0927-0256
1879-0801
DOI:10.1016/j.commatsci.2013.04.007