Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity
Research has been conducted extensively on the bearing capacity of strip footings under vertical centric load. The classical solution is still extensively used in the design codes, despite the scatter values for the bearing capacity factor 𝑁𝛾 that have been suggested by various methods. Some of the...
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Assiut University, Faculty of Engineering
2025-05-01
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| Series: | JES: Journal of Engineering Sciences |
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| Online Access: | https://jesaun.journals.ekb.eg/article_417053_763eb8a12aa5acff257cc496f7537929.pdf |
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| author | Mohamed Ramadan |
| author_facet | Mohamed Ramadan |
| author_sort | Mohamed Ramadan |
| collection | DOAJ |
| description | Research has been conducted extensively on the bearing capacity of strip footings under vertical centric load. The classical solution is still extensively used in the design codes, despite the scatter values for the bearing capacity factor 𝑁𝛾 that have been suggested by various methods. Some of the variables that influence bearing capacity of sand include sand particle morphology, footing width B, mean effective stress level pˊ, and sand relative density Dr. Even though they may have the same Dr and pˊ, different soils may exhibit varying mobilization friction angles ϕm and, as a result, varying stress-strain responses. Consequently, the actual bearing capacity may not be accurately represented by the estimation of 𝑁𝛾 based on peak friction angle ϕp. A 3D Finite Element Model (3D-FEM) was implemented in the present study. A hypoplastic constitutive sand model has been employed to simulate sand behavior. It can accurately replicate the compression and shear behavior of sand within a wide range of confining pressure and density. The experimental centrifuge and one-element tests available in the literature have been employed to validate the model. The critical friction angle ϕcr has been considered as a shear strength parameter that is not dependent on pˊ, and Dr. Parametric analysis is implemented considering different parameter ranges. The primary goal is to predict the bearing capacity factor 𝑁𝛾 of a variety of sand characteristics and to provide a solution that is applicable to a wide variety of sand properties. |
| format | Article |
| id | doaj-art-4499a92a0bb147a58ad045756e27b41a |
| institution | DOAJ |
| issn | 1687-0530 2356-8550 |
| language | Arabic |
| publishDate | 2025-05-01 |
| publisher | Assiut University, Faculty of Engineering |
| record_format | Article |
| series | JES: Journal of Engineering Sciences |
| spelling | doaj-art-4499a92a0bb147a58ad045756e27b41a2025-08-20T03:15:15ZaraAssiut University, Faculty of EngineeringJES: Journal of Engineering Sciences1687-05302356-85502025-05-01533769510.21608/jesaun.2025.349898.1405417053Finite Element Analysis of Strip Footing on Sand Surface Using HypoplasticityMohamed Ramadan0Civil Engineering Dept., Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia Civil Engineering Dept., Faculty of Engineering, Assiut University, Assiut, EgyptResearch has been conducted extensively on the bearing capacity of strip footings under vertical centric load. The classical solution is still extensively used in the design codes, despite the scatter values for the bearing capacity factor 𝑁𝛾 that have been suggested by various methods. Some of the variables that influence bearing capacity of sand include sand particle morphology, footing width B, mean effective stress level pˊ, and sand relative density Dr. Even though they may have the same Dr and pˊ, different soils may exhibit varying mobilization friction angles ϕm and, as a result, varying stress-strain responses. Consequently, the actual bearing capacity may not be accurately represented by the estimation of 𝑁𝛾 based on peak friction angle ϕp. A 3D Finite Element Model (3D-FEM) was implemented in the present study. A hypoplastic constitutive sand model has been employed to simulate sand behavior. It can accurately replicate the compression and shear behavior of sand within a wide range of confining pressure and density. The experimental centrifuge and one-element tests available in the literature have been employed to validate the model. The critical friction angle ϕcr has been considered as a shear strength parameter that is not dependent on pˊ, and Dr. Parametric analysis is implemented considering different parameter ranges. The primary goal is to predict the bearing capacity factor 𝑁𝛾 of a variety of sand characteristics and to provide a solution that is applicable to a wide variety of sand properties.https://jesaun.journals.ekb.eg/article_417053_763eb8a12aa5acff257cc496f7537929.pdffinite elementstrip footingbearing capacitysand, hypoplastic model |
| spellingShingle | Mohamed Ramadan Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity JES: Journal of Engineering Sciences finite element strip footing bearing capacity sand, hypoplastic model |
| title | Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity |
| title_full | Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity |
| title_fullStr | Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity |
| title_full_unstemmed | Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity |
| title_short | Finite Element Analysis of Strip Footing on Sand Surface Using Hypoplasticity |
| title_sort | finite element analysis of strip footing on sand surface using hypoplasticity |
| topic | finite element strip footing bearing capacity sand, hypoplastic model |
| url | https://jesaun.journals.ekb.eg/article_417053_763eb8a12aa5acff257cc496f7537929.pdf |
| work_keys_str_mv | AT mohamedramadan finiteelementanalysisofstripfootingonsandsurfaceusinghypoplasticity |