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A platform for research: civil engineering, architecture and urbanism
Fatigue Crack Propagation in Stiff Clays Forming Part of Earth Dams and Natural Slopes
This study reports laboratory investigations designed to help the understanding of the mechanics of the fatigue crack propagation in stiff clay samples under dynamic loading. To this end, prismatic samples of brittle clay with one pre-existing crack were subjected to uniaxial cyclic loading conditions. Results indicate that: (a) the repeated loading and unloading of fissured clays at a particular stress level leads to larger deformations than those obtained if the samples are subjected to a single cycle of loading; (b) the number of stress cycles needed to cause crack propagation depends upon the inclination of a pre-existing crack; and (c) crack propagation occurs in the samples at levels of cyclic stress that are well below the levels of the monotonically increased stress that also causes crack propagation in the samples. Thus, crack propagation can take place in clays at low levels of cyclic loading (fatigue).
Fatigue Crack Propagation in Stiff Clays Forming Part of Earth Dams and Natural Slopes
This study reports laboratory investigations designed to help the understanding of the mechanics of the fatigue crack propagation in stiff clay samples under dynamic loading. To this end, prismatic samples of brittle clay with one pre-existing crack were subjected to uniaxial cyclic loading conditions. Results indicate that: (a) the repeated loading and unloading of fissured clays at a particular stress level leads to larger deformations than those obtained if the samples are subjected to a single cycle of loading; (b) the number of stress cycles needed to cause crack propagation depends upon the inclination of a pre-existing crack; and (c) crack propagation occurs in the samples at levels of cyclic stress that are well below the levels of the monotonically increased stress that also causes crack propagation in the samples. Thus, crack propagation can take place in clays at low levels of cyclic loading (fatigue).
Fatigue Crack Propagation in Stiff Clays Forming Part of Earth Dams and Natural Slopes
Vallejo, Luis F. (author) / Shettima, Mahiru (author)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 610-617
2019-03-21
Conference paper
Electronic Resource
English
Fatigue Crack Propagation in Stiff Clays Forming Part of Earth Dams and Natural Slopes
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Numerical Study of Crack Propagation in Stiff Clays
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