Influence of drop weight geometry and interlayer on impact behavior of RC beams

© 2019 Elsevier Ltd A number of drop weight tests on reinforced concrete (RC) beams have been reported in literature. These tests conducted by different researchers used drop weight of different geometries. Some researchers also placed an interlayer between the drop weight and RC beam in the tests,...

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Main Authors: Li, H., Chen, Wensu, Hao, Hong
Format: Journal Article
Language:English
Published: PERGAMON-ELSEVIER SCIENCE LTD 2019
Subjects:
Online Access:http://purl.org/au-research/grants/arc/FL180100196
http://hdl.handle.net/20.500.11937/91662
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author Li, H.
Chen, Wensu
Hao, Hong
author_facet Li, H.
Chen, Wensu
Hao, Hong
author_sort Li, H.
building Curtin Institutional Repository
collection Online Access
description © 2019 Elsevier Ltd A number of drop weight tests on reinforced concrete (RC) beams have been reported in literature. These tests conducted by different researchers used drop weight of different geometries. Some researchers also placed an interlayer between the drop weight and RC beam in the tests, while others directly dropped the weight on the beam. These different testing configurations surely affect the testing results. However, only very limited studies have been conducted to investigate their effects on the impact behavior of RC beams. In this study, the influence of drop weight geometry and interlayer on the impact behavior of RC beams is numerically investigated by using explicit finite element code LS-DYNA. The numerical models of RC beams subjected to drop weigh impact are verified by available testing data. With the calibrated model, the responses of RC beams impacted by five commonly used drop weights are analyzed and discussed. The effect of steel plate or rubber pad interlayer between drop weight and RC beam is also investigated. It is found that both the drop weight geometry and interlayer property significantly affect the impact loading profile and the failure mode of RC beams. Furthermore, although most drop-weight tests assume vertical impact, small inclination angles of drop weight impacting on beams might occur. The influence of this small testing error on testing results is also investigated.
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spelling curtin-20.500.11937-916622023-05-23T08:36:48Z Influence of drop weight geometry and interlayer on impact behavior of RC beams Li, H. Chen, Wensu Hao, Hong Science & Technology Technology Engineering, Mechanical Mechanics Engineering Reinforced concrete beam Drop weight Head geometry Impact interlayer Impact behavior REINFORCED-CONCRETE BEAMS OFFSHORE WIND TURBINE SHEAR RESISTANCE MESHFREE METHOD RESPONSES MODEL © 2019 Elsevier Ltd A number of drop weight tests on reinforced concrete (RC) beams have been reported in literature. These tests conducted by different researchers used drop weight of different geometries. Some researchers also placed an interlayer between the drop weight and RC beam in the tests, while others directly dropped the weight on the beam. These different testing configurations surely affect the testing results. However, only very limited studies have been conducted to investigate their effects on the impact behavior of RC beams. In this study, the influence of drop weight geometry and interlayer on the impact behavior of RC beams is numerically investigated by using explicit finite element code LS-DYNA. The numerical models of RC beams subjected to drop weigh impact are verified by available testing data. With the calibrated model, the responses of RC beams impacted by five commonly used drop weights are analyzed and discussed. The effect of steel plate or rubber pad interlayer between drop weight and RC beam is also investigated. It is found that both the drop weight geometry and interlayer property significantly affect the impact loading profile and the failure mode of RC beams. Furthermore, although most drop-weight tests assume vertical impact, small inclination angles of drop weight impacting on beams might occur. The influence of this small testing error on testing results is also investigated. 2019 Journal Article http://hdl.handle.net/20.500.11937/91662 10.1016/j.ijimpeng.2019.04.028 English http://purl.org/au-research/grants/arc/FL180100196 PERGAMON-ELSEVIER SCIENCE LTD fulltext
spellingShingle Science & Technology
Technology
Engineering, Mechanical
Mechanics
Engineering
Reinforced concrete beam
Drop weight
Head geometry
Impact interlayer
Impact behavior
REINFORCED-CONCRETE BEAMS
OFFSHORE WIND TURBINE
SHEAR RESISTANCE
MESHFREE METHOD
RESPONSES
MODEL
Li, H.
Chen, Wensu
Hao, Hong
Influence of drop weight geometry and interlayer on impact behavior of RC beams
title Influence of drop weight geometry and interlayer on impact behavior of RC beams
title_full Influence of drop weight geometry and interlayer on impact behavior of RC beams
title_fullStr Influence of drop weight geometry and interlayer on impact behavior of RC beams
title_full_unstemmed Influence of drop weight geometry and interlayer on impact behavior of RC beams
title_short Influence of drop weight geometry and interlayer on impact behavior of RC beams
title_sort influence of drop weight geometry and interlayer on impact behavior of rc beams
topic Science & Technology
Technology
Engineering, Mechanical
Mechanics
Engineering
Reinforced concrete beam
Drop weight
Head geometry
Impact interlayer
Impact behavior
REINFORCED-CONCRETE BEAMS
OFFSHORE WIND TURBINE
SHEAR RESISTANCE
MESHFREE METHOD
RESPONSES
MODEL
url http://purl.org/au-research/grants/arc/FL180100196
http://hdl.handle.net/20.500.11937/91662