Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils

While the macroscopic mechanical properties of earthen-site soils have undergone extensive experimental and modeling studies, few research efforts focus on the relationship between the overall mechanical behavior and micro-pore structure. We developed a microstructure-based finite element model to i...

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Main Authors: Yingmin Zhang, Guang Yang, Wenwu Chen, Lizhi Sun
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/17/6124
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author Yingmin Zhang
Guang Yang
Wenwu Chen
Lizhi Sun
author_facet Yingmin Zhang
Guang Yang
Wenwu Chen
Lizhi Sun
author_sort Yingmin Zhang
collection DOAJ
description While the macroscopic mechanical properties of earthen-site soils have undergone extensive experimental and modeling studies, few research efforts focus on the relationship between the overall mechanical behavior and micro-pore structure. We developed a microstructure-based finite element model to investigate the influence of micro-pore structure on the macroscopic mechanical behavior of earthen-site soils. Scanning electron microscopy images of the untreated and consolidated soils were processed to compare the changes in equivalent diameter, sphericity, and porosity of the soils after consolidation. According to the pore parameter range of the untreated and consolidated soils, the effects of micro-pores on the soil behavior are specifically conducted under both static and dynamic loads. The relationships between pore characteristics and stiffness, strength, and ultrasonic wave velocity are established.
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spelling doaj.art-5f1cf5307acc44debc32e1ea7a25bdb22023-11-23T13:35:58ZengMDPI AGMaterials1996-19442022-09-011517612410.3390/ma15176124Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site SoilsYingmin Zhang0Guang Yang1Wenwu Chen2Lizhi Sun3CCCC First Harbor Consultants Co., Ltd., Tianjin 300222, ChinaChina Water Resources Beifang Investigation, Design & Research Co., Ltd., Tianjin 300222, ChinaKey Laboratory of Mechanics on Disaster & Environment in Western China, School of Civil Engineering & Mechanics, Lanzhou University, Lanzhou 730000, ChinaDepartment of Civil & Environmental Engineering, University of California, Irvine, CA 92697-2175, USAWhile the macroscopic mechanical properties of earthen-site soils have undergone extensive experimental and modeling studies, few research efforts focus on the relationship between the overall mechanical behavior and micro-pore structure. We developed a microstructure-based finite element model to investigate the influence of micro-pore structure on the macroscopic mechanical behavior of earthen-site soils. Scanning electron microscopy images of the untreated and consolidated soils were processed to compare the changes in equivalent diameter, sphericity, and porosity of the soils after consolidation. According to the pore parameter range of the untreated and consolidated soils, the effects of micro-pores on the soil behavior are specifically conducted under both static and dynamic loads. The relationships between pore characteristics and stiffness, strength, and ultrasonic wave velocity are established.https://www.mdpi.com/1996-1944/15/17/6124earthen-site soilsconsolidated soilssphericityporosityfinite element method
spellingShingle Yingmin Zhang
Guang Yang
Wenwu Chen
Lizhi Sun
Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils
Materials
earthen-site soils
consolidated soils
sphericity
porosity
finite element method
title Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils
title_full Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils
title_fullStr Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils
title_full_unstemmed Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils
title_short Relation between Microstructures and Macroscopic Mechanical Properties of Earthen-Site Soils
title_sort relation between microstructures and macroscopic mechanical properties of earthen site soils
topic earthen-site soils
consolidated soils
sphericity
porosity
finite element method
url https://www.mdpi.com/1996-1944/15/17/6124
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AT lizhisun relationbetweenmicrostructuresandmacroscopicmechanicalpropertiesofearthensitesoils