Relationship between probabilistic characteristics of microscopic and macroscopic strength within the stochastic phase-field model
- verfasst von
- Lu Hai, Jie Li, Peter Wriggers
- Abstract
Stochastic phase-field models can reproduce the nonlinearity and randomness of the mechanical behavior of quasi-brittle materials within a unified macroscopic continuum framework. To study the probabilistic characteristics of microscopic and macroscopic strength within the stochastic phase-field model and their relationship, a series of numerical results of a specimen subjected to uniaxial tension using a stochastic phase-field model is presented. The probabilistic characteristics of the macroscopic responses and the underlying mechanisms are discussed. Based on the numerical results, a probabilistic model is developed, which can effectively determine the probability information of the macroscopic structural strength of quasi-brittle uniaxial tensile specimens. In particular, the interaction of several characteristic scales involved in the stochastic phase-field model can be demonstrated.
- Organisationseinheit(en)
-
Institut für Kontinuumsmechanik
- Externe Organisation(en)
-
Ocean University of China
Tongji University
- Typ
- Artikel
- Journal
- Applied mathematical modelling
- Band
- 123
- Seiten
- 776-789
- Anzahl der Seiten
- 14
- ISSN
- 0307-904X
- Publikationsdatum
- 11.2023
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Modellierung und Simulation, Angewandte Mathematik
- Elektronische Version(en)
-
https://doi.org/10.1016/j.apm.2023.07.027 (Zugang:
Geschlossen)
