Aspects of the computational testing of the mechanical properties of microheterogeneous material samples

authored by: T. I. Zohdi, P. Wriggers
Abstract: In this paper we investigate topics related to the numerical simulation of the testing of mechanical responses of samples of microheterogeneous solid material. Consistent with what is produced in dispersion manufacturing methods, the microstructures considered are generated by randomly distributing aggregates of particulate material throughout an otherwise homogeneous matrix material. Therefore, the resulting microstructures are irregular and non-periodic. A primary problem in testing such materials is the fact that only finite-sized samples can be tested, leading to no single response, but a distribution of responses. In this work, a technique employing potential energy principles is presented to interpret the results of testing groups of samples. Three-dimensional numerical examples employing the finite element method are given to illustrate the overall analysis and computational testing process.
Organisation(s): Institute of Mechanics and Computational Mechanics
Type: Article
Journal: International Journal for Numerical Methods in Engineering
Volume: 50
Pages: 2573-2599
No. of pages: 27
ISSN: 0029-5981
Publication date: 26.02.2001
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Numerical Analysis, General Engineering, Applied Mathematics
Electronic version(s): https://doi.org/10.1002/nme.146 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{2b86cca2035d49c6aeb8d749a6e9db3c,
title = "Aspects of the computational testing of the mechanical properties of microheterogeneous material samples",
abstract = "In this paper we investigate topics related to the numerical simulation of the testing of mechanical responses of samples of microheterogeneous solid material. Consistent with what is produced in dispersion manufacturing methods, the microstructures considered are generated by randomly distributing aggregates of particulate material throughout an otherwise homogeneous matrix material. Therefore, the resulting microstructures are irregular and non-periodic. A primary problem in testing such materials is the fact that only finite-sized samples can be tested, leading to no single response, but a distribution of responses. In this work, a technique employing potential energy principles is presented to interpret the results of testing groups of samples. Three-dimensional numerical examples employing the finite element method are given to illustrate the overall analysis and computational testing process.",
keywords = "Material testing, Random heterogeneous materials",
author = "Zohdi, {T. I.} and P. Wriggers",
year = "2001",
month = feb,
day = "26",
doi = "10.1002/nme.146",
language = "English",
volume = "50",
pages = "2573--2599",
journal = "International Journal for Numerical Methods in Engineering",
issn = "0029-5981",
publisher = "John Wiley and Sons Ltd",
number = "11",
}