Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand
Stress–strain and volume change behavior for clean sands which have distinct particle shape (rounded and angular) with very similar chemical (mineralogical) composition, size, and texture in one-dimensional (1D) compression and drained triaxial compression are presented. The effect of particle morph...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-06-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/11/3023 |
| _version_ | 1797531623251509248 |
|---|---|
| author | Aashish Sharma Alexia R. Leib-Day Mohmad Mohsin Thakur Dayakar Penumadu |
| author_facet | Aashish Sharma Alexia R. Leib-Day Mohmad Mohsin Thakur Dayakar Penumadu |
| author_sort | Aashish Sharma |
| collection | DOAJ |
| description | Stress–strain and volume change behavior for clean sands which have distinct particle shape (rounded and angular) with very similar chemical (mineralogical) composition, size, and texture in one-dimensional (1D) compression and drained triaxial compression are presented. The effect of particle morphology on the crushing behavior in one-dimensional loading is explored using laser light diffraction technique which is suitable for particle crushing because of its high resolution and small specimen volume capability. Particle size distribution in both volume/mass and number distributions are considered for improved understanding associated with the process of comminution. Number distributions present a clearer picture of particle crushing. It is argued that particle crushing in granular assemblies initiates in larger particles, rather than in smaller particle. It was found that rounded sand specimens showed greater crushing than angular sand specimens with higher uniformity coefficient. In 1D compression, loose specimens compress approximately 10% more than dense specimens irrespective of particle shape. Densification of angular sand results in improvement in stiffness (approximately 40%) and is comparable to that of loose rounded sand. In general, density has a greater influence on the behavior of granular materials than particle morphology. The effect of particle shape was found to be greater in loose specimens than in dense specimens. The effect of grain shape on critical state friction angle is also quantified. |
| first_indexed | 2024-03-10T10:47:18Z |
| format | Article |
| id | doaj.art-e891ab1e64364351b3b8be44c9ddb7bc |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T10:47:18Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-e891ab1e64364351b3b8be44c9ddb7bc2023-11-21T22:33:18ZengMDPI AGMaterials1996-19442021-06-011411302310.3390/ma14113023Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural SandAashish Sharma0Alexia R. Leib-Day1Mohmad Mohsin Thakur2Dayakar Penumadu3GEOServices LLC, Cleveland, TN 37312, USADan Brown and Associates, PC, Knoxville, TN 37919, USADepartment of Civil and Environmental Engineering, Tickle College of Engineering, The University of Tennessee, Knoxville, TN 37996, USAFred N. Peebles Professor and JIAM Chair of Excellence, Department of Civil and Environmental Engineering, Tickle College of Engineering, The University of Tennessee, Knoxville, TN 37996, USAStress–strain and volume change behavior for clean sands which have distinct particle shape (rounded and angular) with very similar chemical (mineralogical) composition, size, and texture in one-dimensional (1D) compression and drained triaxial compression are presented. The effect of particle morphology on the crushing behavior in one-dimensional loading is explored using laser light diffraction technique which is suitable for particle crushing because of its high resolution and small specimen volume capability. Particle size distribution in both volume/mass and number distributions are considered for improved understanding associated with the process of comminution. Number distributions present a clearer picture of particle crushing. It is argued that particle crushing in granular assemblies initiates in larger particles, rather than in smaller particle. It was found that rounded sand specimens showed greater crushing than angular sand specimens with higher uniformity coefficient. In 1D compression, loose specimens compress approximately 10% more than dense specimens irrespective of particle shape. Densification of angular sand results in improvement in stiffness (approximately 40%) and is comparable to that of loose rounded sand. In general, density has a greater influence on the behavior of granular materials than particle morphology. The effect of particle shape was found to be greater in loose specimens than in dense specimens. The effect of grain shape on critical state friction angle is also quantified.https://www.mdpi.com/1996-1944/14/11/3023sandparticle shapeparticle crushingengineering properties |
| spellingShingle | Aashish Sharma Alexia R. Leib-Day Mohmad Mohsin Thakur Dayakar Penumadu Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand Materials sand particle shape particle crushing engineering properties |
| title | Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand |
| title_full | Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand |
| title_fullStr | Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand |
| title_full_unstemmed | Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand |
| title_short | Effect of Particle Morphology on Stiffness, Strength and Volumetric Behavior of Rounded and Angular Natural Sand |
| title_sort | effect of particle morphology on stiffness strength and volumetric behavior of rounded and angular natural sand |
| topic | sand particle shape particle crushing engineering properties |
| url | https://www.mdpi.com/1996-1944/14/11/3023 |
| work_keys_str_mv | AT aashishsharma effectofparticlemorphologyonstiffnessstrengthandvolumetricbehaviorofroundedandangularnaturalsand AT alexiarleibday effectofparticlemorphologyonstiffnessstrengthandvolumetricbehaviorofroundedandangularnaturalsand AT mohmadmohsinthakur effectofparticlemorphologyonstiffnessstrengthandvolumetricbehaviorofroundedandangularnaturalsand AT dayakarpenumadu effectofparticlemorphologyonstiffnessstrengthandvolumetricbehaviorofroundedandangularnaturalsand |