aalto1 untyped-item.component.html
Predicting sample lifetimes in creep fracture of heterogeneous materials
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Physical Review E, Volume 94, issue 2, pp. 1-6
Abstract
Materials flow - under creep or constant loads - and, finally, fail. The prediction of sample lifetimes is an important and highly challenging problem because of the inherently heterogeneous nature of most materials that results in large sample-to-sample lifetime fluctuations, even under the same conditions. We study creep deformation of paper sheets as one heterogeneous material and thus show how to predict lifetimes of individual samples by exploiting the "universal" features in the sample-inherent creep curves, particularly the passage to an accelerating creep rate. Using simulations of a viscoelastic fiber bundle model, we illustrate how deformation localization controls the shape of the creep curve and thus the degree of lifetime predictability.
Description
Keywords
Other note
Citation
Koivisto, J, Ovaska, M, Miksic, A, Laurson, L & Alava, M J 2016, 'Predicting sample lifetimes in creep fracture of heterogeneous materials', Physical Review E, vol. 94, no. 2, 023002, pp. 1-6. https://doi.org/10.1103/PhysRevE.94.023002