Statistical Damage Constitutive Model for Cemented Sand considering the Residual Strength and Initial Compaction Phase
Joint Authors
Tan, Cai
Yuan, Ming-dao
Shi, Yong-sheng
Zhou, Bing-sheng
Li, Hao
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-29
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Based on continuum damage mechanics and the assumption of volume invariance, a damage constitutive model of cemented sand under triaxial stress was established while considering residual strength.
Statistical theory was then introduced into this model.
Assuming that the microunit strength of cemented sand obeys a Weibull random distribution, an expression of microunit strength based on the Mohr–Coulomb criterion was derived.
Additionally, a damage evolution equation and a statistical damage constitutive model of cemented sand under triaxial stress were established.
In order to consider the nonlinear deformation and volume change in the initial pore compaction stage, the critical point reflecting the completion of the initial compaction stage was determined.
This was done by applying the volume invariance assumption to the linear portion of the stress and strain curve and performing a coordinate transformation.
The nonlinearity of the initial compaction stage was fitted by a quadratic function.
A triaxial compression test of cemented sand was then carried out to verify this proposed method.
The results show that the calculated values by the damage constitutive model fit well with the actual experimental values and that the calculated results can reflect the stress softening, residual strength, and initial compaction characteristics of cemented sand, which shows the rationality and feasibility of the model.
American Psychological Association (APA)
Tan, Cai& Yuan, Ming-dao& Shi, Yong-sheng& Zhou, Bing-sheng& Li, Hao. 2018. Statistical Damage Constitutive Model for Cemented Sand considering the Residual Strength and Initial Compaction Phase. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1115377
Modern Language Association (MLA)
Tan, Cai…[et al.]. Statistical Damage Constitutive Model for Cemented Sand considering the Residual Strength and Initial Compaction Phase. Advances in Civil Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1115377
American Medical Association (AMA)
Tan, Cai& Yuan, Ming-dao& Shi, Yong-sheng& Zhou, Bing-sheng& Li, Hao. Statistical Damage Constitutive Model for Cemented Sand considering the Residual Strength and Initial Compaction Phase. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1115377
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1115377