Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material
© Society for Experimental Mechanics, Inc. 2020. Mechanoluminescent powders are new materials that can be considered as intelligent, active or responsive because they have the property of emitting light when they are mechanically deformed. They open perspectives for the measurement of stresses in me...
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th-cmuir.6653943832-705992020-10-14T08:35:07Z Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material Pawarut Jongchansitto Damien Boyer Itthichai Preechawuttipong Xavier Balandraud Engineering © Society for Experimental Mechanics, Inc. 2020. Mechanoluminescent powders are new materials that can be considered as intelligent, active or responsive because they have the property of emitting light when they are mechanically deformed. They open perspectives for the measurement of stresses in mechanical parts. The present study focused on the stress concentrations in granular materials. Granular systems are defined as a collection of particles whose macroscopic behavior depends on the contact forces at the local scale. Some techniques are available for measurements in the bulk, such as X-ray tomography combined with volumetric digital image correlation. An extensive literature also deals with two-dimensional approaches: optical photography combined with digital image correlation, photoelasticimetry, infrared thermography. Mechanoluminescent materials offer new possibilities for revealing contact force networks in granular materials. Epoxy resin and mechanoluminescent powder were mixed to prepare dumbbell-like specimens and cylinders. Dumbbell-like specimens were used for preliminary uniaxial tensile tests. Cylinders were used to prepare granular systems for confined compression tests. Homogeneous light emission was obtained in the former case, while light concentrations were evidenced in the latter case. 2020-10-14T08:35:07Z 2020-10-14T08:35:07Z 2020-01-01 Conference Proceeding 21915652 21915644 2-s2.0-85085477821 10.1007/978-3-030-30009-8_12 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085477821&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/70599 |
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Engineering Pawarut Jongchansitto Damien Boyer Itthichai Preechawuttipong Xavier Balandraud Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material |
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© Society for Experimental Mechanics, Inc. 2020. Mechanoluminescent powders are new materials that can be considered as intelligent, active or responsive because they have the property of emitting light when they are mechanically deformed. They open perspectives for the measurement of stresses in mechanical parts. The present study focused on the stress concentrations in granular materials. Granular systems are defined as a collection of particles whose macroscopic behavior depends on the contact forces at the local scale. Some techniques are available for measurements in the bulk, such as X-ray tomography combined with volumetric digital image correlation. An extensive literature also deals with two-dimensional approaches: optical photography combined with digital image correlation, photoelasticimetry, infrared thermography. Mechanoluminescent materials offer new possibilities for revealing contact force networks in granular materials. Epoxy resin and mechanoluminescent powder were mixed to prepare dumbbell-like specimens and cylinders. Dumbbell-like specimens were used for preliminary uniaxial tensile tests. Cylinders were used to prepare granular systems for confined compression tests. Homogeneous light emission was obtained in the former case, while light concentrations were evidenced in the latter case. |
format |
Conference Proceeding |
author |
Pawarut Jongchansitto Damien Boyer Itthichai Preechawuttipong Xavier Balandraud |
author_facet |
Pawarut Jongchansitto Damien Boyer Itthichai Preechawuttipong Xavier Balandraud |
author_sort |
Pawarut Jongchansitto |
title |
Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material |
title_short |
Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material |
title_full |
Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material |
title_fullStr |
Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material |
title_full_unstemmed |
Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material |
title_sort |
identification of interparticle contacts in granular media using mechanoluminescent material |
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2020 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085477821&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/70599 |
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