Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An Energy-Based Fatigue Damage Model for Sandstone Subjected to Cyclic Loading
Abstract A series of laboratory tests are performed to determine the energy evolution and fatigue behavior of sandstone subjected to cyclic loading, as well as the influence of the upper stress level on the fatigue life. The test results show a nearly linear negative correlation between the rock fatigue life and the upper stress ratio. The evolution of the dissipated energy and the elastic energy can be classified into three stages: a fatigue hardening stage (I), a steady development stage (II) and a steep destruction stage (III). This observation is used to develop a three-stage fatigue damage model for sandstone based on the energy dissipation. The initial rock damage is incorporated into the damage model with the dissipated energy as the damage variable. The proposed model is validated by comparing the predicted and test results.
An Energy-Based Fatigue Damage Model for Sandstone Subjected to Cyclic Loading
Abstract A series of laboratory tests are performed to determine the energy evolution and fatigue behavior of sandstone subjected to cyclic loading, as well as the influence of the upper stress level on the fatigue life. The test results show a nearly linear negative correlation between the rock fatigue life and the upper stress ratio. The evolution of the dissipated energy and the elastic energy can be classified into three stages: a fatigue hardening stage (I), a steady development stage (II) and a steep destruction stage (III). This observation is used to develop a three-stage fatigue damage model for sandstone based on the energy dissipation. The initial rock damage is incorporated into the damage model with the dissipated energy as the damage variable. The proposed model is validated by comparing the predicted and test results.
An Energy-Based Fatigue Damage Model for Sandstone Subjected to Cyclic Loading
Li, Tiantao (Autor:in) / Pei, Xiangjun (Autor:in) / Guo, Jian (Autor:in) / Meng, Minghui (Autor:in) / Huang, Runqiu (Autor:in)
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
38.58
Geomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB41
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