Quantification of displacement and particle crushing around a penetrometer tip

Particle crushing occurs near the tip of a penetrometer and influences the development of the tip resistance. To study particle crushing near a penetrometer tip, a cone penetrometer was monotonically jacked and then load-tested in medium dense and dense silica sand samples prepared in a half-cylindr...

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Main Authors: Eshan Ganju, Fei Han, Monica Prezzi, Rodrigo Salgado, Juliana Spohr Pereira
Format: Article
Language:English
Published: Elsevier 2020-03-01
Series:Geoscience Frontiers
Online Access:http://www.sciencedirect.com/science/article/pii/S1674987119301070
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author Eshan Ganju
Fei Han
Monica Prezzi
Rodrigo Salgado
Juliana Spohr Pereira
author_facet Eshan Ganju
Fei Han
Monica Prezzi
Rodrigo Salgado
Juliana Spohr Pereira
author_sort Eshan Ganju
collection DOAJ
description Particle crushing occurs near the tip of a penetrometer and influences the development of the tip resistance. To study particle crushing near a penetrometer tip, a cone penetrometer was monotonically jacked and then load-tested in medium dense and dense silica sand samples prepared in a half-cylindrical calibration chamber with viewing windows. During the tests, images of the advancing penetrometer and the surrounding soil were taken using digital cameras and analyzed to obtain the displacement and strain fields around the penetrometer using the Digital Image Correlation (DIC) technique. Subsequently, soil samples were collected near the tip of the penetrometer using a novel agar-impregnation technique and digitized using an X-ray microscope. The digitized samples were analyzed to reconstruct the three-dimensional models of individual particles, generating the gradation and relative breakage parameters of the sand around the cone penetrometer. Keywords: Crushing, DIC, Penetrometer, X-ray, CT
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spelling doaj.art-670409e1657749079561fc53926ccf122023-09-03T01:59:28ZengElsevierGeoscience Frontiers1674-98712020-03-01112389399Quantification of displacement and particle crushing around a penetrometer tipEshan Ganju0Fei Han1Monica Prezzi2Rodrigo Salgado3Juliana Spohr Pereira4Lyles School of Civil Engineering, Purdue University, United StatesCorresponding author.; Lyles School of Civil Engineering, Purdue University, United StatesLyles School of Civil Engineering, Purdue University, United StatesLyles School of Civil Engineering, Purdue University, United StatesLyles School of Civil Engineering, Purdue University, United StatesParticle crushing occurs near the tip of a penetrometer and influences the development of the tip resistance. To study particle crushing near a penetrometer tip, a cone penetrometer was monotonically jacked and then load-tested in medium dense and dense silica sand samples prepared in a half-cylindrical calibration chamber with viewing windows. During the tests, images of the advancing penetrometer and the surrounding soil were taken using digital cameras and analyzed to obtain the displacement and strain fields around the penetrometer using the Digital Image Correlation (DIC) technique. Subsequently, soil samples were collected near the tip of the penetrometer using a novel agar-impregnation technique and digitized using an X-ray microscope. The digitized samples were analyzed to reconstruct the three-dimensional models of individual particles, generating the gradation and relative breakage parameters of the sand around the cone penetrometer. Keywords: Crushing, DIC, Penetrometer, X-ray, CThttp://www.sciencedirect.com/science/article/pii/S1674987119301070
spellingShingle Eshan Ganju
Fei Han
Monica Prezzi
Rodrigo Salgado
Juliana Spohr Pereira
Quantification of displacement and particle crushing around a penetrometer tip
Geoscience Frontiers
title Quantification of displacement and particle crushing around a penetrometer tip
title_full Quantification of displacement and particle crushing around a penetrometer tip
title_fullStr Quantification of displacement and particle crushing around a penetrometer tip
title_full_unstemmed Quantification of displacement and particle crushing around a penetrometer tip
title_short Quantification of displacement and particle crushing around a penetrometer tip
title_sort quantification of displacement and particle crushing around a penetrometer tip
url http://www.sciencedirect.com/science/article/pii/S1674987119301070
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