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Decomposition of Elastic Stiffness Degradation in Continuum Damage Mechanics
Journal of Engineering Materials and Technology, 2017The degradation of elastic stiffness is investigated systematically within the framework of continuum damage mechanics. Consistent equations are obtained showing how the degradation of elastic stiffness can be decomposed into a part due to cracks and another part due to voids. For this purpose, the hypothesis of elastic energy equivalence of order n is
George Z. Voyiadjis, Peter I. Kattan
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Prediction of the Fatigue Life Based on Stiffness Degradation Concept
Advanced Materials Research, 2008In order to predict the fatigue life of matrix-dominated polymer composites, a new model based on stiffness degradation concept was proposed. The effect of off-axis was considered by defining a non-dimensional modified stress level, and the expression of fatigue stress limit could be provided in the new model.
Y.H. Wang, Zheng Dao Wang, X.X. Zhao
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Train-induced response of stiffness-degraded tunnel linings
Tunnelling and Underground Space Technology, 2023Linfeng LI +3 more
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Spectral Displacement Demands of Stiffness‐ and Strength‐Degrading Systems
Earthquake Spectra, 2000The effect of stiffness and strength degradation on the maximum inelastic displacement of single‐degree‐of‐freedom (SDOF) systems was investigated. The SDOF model included strength and stiffness degradation with increasing deformation amplitude and upon reversal of loading cycles.
Jong‐Keol Song, José A. Pincheira
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Distributed cracking and stiffness degradation in fabric-cement composites
Materials and Structures, 2006RILEM 2006 Abstract Formation of distributed cracking and the as- sociated degradation in the stiffness of fabric-cement composites under tensile loading were studied. Com- posites made from low modulus woven polyethylene fabric and bonded Alkali Resistant (AR) glass mesh were manufactured by means of pultrusion technique.
Barzin Mobasher +2 more
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Stiffness degradation of non-plastic copper ore tailings
Géotechnique LettersThe accumulation of tailings from ore extraction processes presents significant challenges in geotechnical engineering and environmental management. Tailings possess complex mechanical behaviour and unique characteristics, making them particularly sensitive to seismic activity. This study investigates the stiffness degradation of two non-plastic copper
H. Patiño +3 more
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Damage described in terms of stiffness degradation
2023George Z. Voyiadjis, Peter I. Kattan
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Factors affecting the initial stiffness and stiffness degradation of cohesive soils
1999This research investigated the pre-failure stress-strain behavior of cohesive soils through an ex.tensive testing program conducted on Resedimented Boston Blue Clay (RBBC). The uniformity and reproducibility in the behavior of this soil permitted a detailed study of the role of the following factors on both initial stiffness and small strain ...
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Effect of Loading Speed and Stiffness Degradation of Cohesive Soils
1996Abstract The tendency of soils to dilate or to contract during drained shear and pore water pressure changes during undrained shear does not come out in the infinitesimal or small strain ranges. The effect of the dilatancy begins to manifest itself as the magnitude of shear strain increases above the level of about 10-3 as indicated ...
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FATIGUE BEHAVIOUR AND STIFFNESS DEGRADATION IN HYPERELASTIC ADHESIVE JOINTS
The fatigue behaviour of single-lap joints bonded with a hyperelastic silane-modified polymer adhesive was investigated under displacement-controlled (DC) and load-controlled (LC) conditions to clarify the influence of loading control mode on the mechanical interpretation of fatigue degradation in flexible adhesive joints.Óscar Cuadrado Sempere +6 more
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