Perforated steel block of realizing large ductility under compression: Parametric study and stress–strain modeling

Abstract: On one hand, the nature of linear elastic up to brittle rupture hinders the application of fiber-reinforced polymer (FRP) bars as reinforcement in the concrete member due to the displacement ductility demand of structures. On the other hand, FRP bars are equipped with many irreplaceable advantages as reinforcement in concrete structures. To resolve this contradiction, a possible solution is to use the so-called compression yield (CY) structural system and the ductility of a concrete beam incorporating a CY system comes from the compressive side rather than the tensile side. Thus, the development of material in the compressive side (CY material) with well-designed mechanical properties (strength, stiffness, and ductility) is a key challenge. In this study, the CY material is developed by perforating the mild steel block and then substantiated by the test results. Then, experimentally calibrated finite element models are used to conduct systematic parametric studies, based on which parametric equations are proposed to predict the stiffness and ultimate strength of the CY material. Finally, theoretical constitutive models are developed to predict the stress–strain response of perforated steel block under compression and a reasonably acceptable agreement is reached between the model predictions and the test results.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Perforated steel block of realizing large ductility under compression: Parametric study and stress–strain modeling ; volume:61 ; number:1 ; year:2022 ; pages:221-237 ; extent:17
Reviews on advanced materials science ; 61, Heft 1 (2022), 221-237 (gesamt 17)

Creator
Zhou, Yingwu
Zhuang, Li
Hu, Zhiheng
Hu, Biao
Huang, Xiaoxu
Li, Shan
Guo, Menghuan
Zhu, Zhongfeng

DOI
10.1515/rams-2022-0026
URN
urn:nbn:de:101:1-2022071814480785360918
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:20 AM CEST

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Associated

  • Zhou, Yingwu
  • Zhuang, Li
  • Hu, Zhiheng
  • Hu, Biao
  • Huang, Xiaoxu
  • Li, Shan
  • Guo, Menghuan
  • Zhu, Zhongfeng

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