Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test

The Split Hopkinson Pressure Bar (SHPB) test device is an important tool to study the dynamic characteristics of concrete materials. Inertial effect is one of the main factors that cause inaccurate results in SHPB tests of concrete materials. To solve this problem, Large-diameter SHPB tests on concr...

Descripción completa

Detalles Bibliográficos
Autores principales: Sun, Bi, Chen, Rui, Ping, Yang, Zhu, ZhenDe, Wu, Nan, Shi, Zhenyue
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102999/
https://www.ncbi.nlm.nih.gov/pubmed/35591335
http://dx.doi.org/10.3390/ma15092995
_version_ 1784707459977314304
author Sun, Bi
Chen, Rui
Ping, Yang
Zhu, ZhenDe
Wu, Nan
Shi, Zhenyue
author_facet Sun, Bi
Chen, Rui
Ping, Yang
Zhu, ZhenDe
Wu, Nan
Shi, Zhenyue
author_sort Sun, Bi
collection PubMed
description The Split Hopkinson Pressure Bar (SHPB) test device is an important tool to study the dynamic characteristics of concrete materials. Inertial effect is one of the main factors that cause inaccurate results in SHPB tests of concrete materials. To solve this problem, Large-diameter SHPB tests on concrete and mortar were performed. A dynamic increase factor (DIF) model considering strain rate effect and inertia effect was established. This model provides a scientific reference for studying the dynamic mechanical properties of concrete materials. The experimental results indicate that the strain rate effect of concrete is more sensitive than that of mortar, but the inertia effect of mortar is more sensitive than that of concrete. Under the same strain rate, the energy utilization rate, average fragment size, and impact potentiality of mortar are higher than concrete.
format Online
Article
Text
id pubmed-9102999
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-91029992022-05-14 Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test Sun, Bi Chen, Rui Ping, Yang Zhu, ZhenDe Wu, Nan Shi, Zhenyue Materials (Basel) Article The Split Hopkinson Pressure Bar (SHPB) test device is an important tool to study the dynamic characteristics of concrete materials. Inertial effect is one of the main factors that cause inaccurate results in SHPB tests of concrete materials. To solve this problem, Large-diameter SHPB tests on concrete and mortar were performed. A dynamic increase factor (DIF) model considering strain rate effect and inertia effect was established. This model provides a scientific reference for studying the dynamic mechanical properties of concrete materials. The experimental results indicate that the strain rate effect of concrete is more sensitive than that of mortar, but the inertia effect of mortar is more sensitive than that of concrete. Under the same strain rate, the energy utilization rate, average fragment size, and impact potentiality of mortar are higher than concrete. MDPI 2022-04-20 /pmc/articles/PMC9102999/ /pubmed/35591335 http://dx.doi.org/10.3390/ma15092995 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sun, Bi
Chen, Rui
Ping, Yang
Zhu, ZhenDe
Wu, Nan
Shi, Zhenyue
Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test
title Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test
title_full Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test
title_fullStr Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test
title_full_unstemmed Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test
title_short Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test
title_sort research on dynamic strength and inertia effect of concrete materials based on large-diameter split hopkinson pressure bar test
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102999/
https://www.ncbi.nlm.nih.gov/pubmed/35591335
http://dx.doi.org/10.3390/ma15092995
work_keys_str_mv AT sunbi researchondynamicstrengthandinertiaeffectofconcretematerialsbasedonlargediametersplithopkinsonpressurebartest
AT chenrui researchondynamicstrengthandinertiaeffectofconcretematerialsbasedonlargediametersplithopkinsonpressurebartest
AT pingyang researchondynamicstrengthandinertiaeffectofconcretematerialsbasedonlargediametersplithopkinsonpressurebartest
AT zhuzhende researchondynamicstrengthandinertiaeffectofconcretematerialsbasedonlargediametersplithopkinsonpressurebartest
AT wunan researchondynamicstrengthandinertiaeffectofconcretematerialsbasedonlargediametersplithopkinsonpressurebartest
AT shizhenyue researchondynamicstrengthandinertiaeffectofconcretematerialsbasedonlargediametersplithopkinsonpressurebartest

Ejemplares similares