Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Impact & Dynamics Vol. 15, No. 57 (2021)

Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers

Author and affiliation details
  • Mahmoud Nawar Corresponding author Zagazig University, Department of Structural Engineering, Egypt. mn6w8@mail.missouri.edu
  • Kareem El-Awady Zagazig University, Department of Structural Engineering, Egypt.
  • Hamdy Shehab Zagazig University, Department of Structural Engineering, Egypt.
  • Ahmed Eisa Zagazig University, Department of Structural Engineering, Egypt.
DOI
10.3221/IGF-ESIS.57.19
Pages
259-280
Published
Licence
CC BY 4.0
Published inVol. 15, No. 57 (2021)Go to the issue

Abstract

An analytical investigation using ABAQUS/Explicit dynamic analysis was carried out to investigate the effect of using Micro/Nano silica in the presence of steel fibers on improving the dynamic response of reinforced concrete beams. According to the results of Magnusson and Hallgren's experimental investigation, the FE model has been well verified and calibrated. The finite element test program was extended further to study the effect of tensile reinforcement ratio by (0.5%, 0.78%, and 1.13%) comparing with the enhancement of concrete’s material on the behavior of tested R.C beams under blast loading. The results where compared in terms of changes in the max deflection at mid-span and flexural toughness values. The results showed that the combination between the compressive and flexural characteristic of concrete is necessary in case of high steel reinforcement ratio to reduce the brittle behavior of the R.C structure element, especially when the R.C elements exposed to a high strain rate loading due to the addition value of (DIF) for steel reinforcement properties which make the element stiffer than usual, compared with quasi-static loading condition.

           

Keywords

Article history

  1. ReceivedUntil the next stage: 50 days
  2. RevisedUntil the next stage: 1 day
  3. AcceptedUntil the next stage: 12 days
  4. Published

How to cite

APA

Nawar, M., El-Awady, K., Shehab, H., & Eisa, A. (2021). Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers. Fracture and Structural Integrity, 15(57), 259–280. https://doi.org/10.3221/IGF-ESIS.57.19

IEEE

M. Nawar, K. El-Awady, H. Shehab, and A. Eisa, “Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers,” Fracture and Structural Integrity, vol. 15, no. 57, pp. 259–280, 2021, doi: 10.3221/IGF-ESIS.57.19.

MLA

Nawar, Mahmoud, et al. “Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers.” Fracture and Structural Integrity, vol. 15, no. 57, 2021, pp. 259–280. https://doi.org/10.3221/IGF-ESIS.57.19.

Chicago

Nawar, Mahmoud, Kareem El-Awady, Hamdy Shehab, and Ahmed Eisa. 2021. “Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers.” Fracture and Structural Integrity 15 (57): 259–280. https://doi.org/10.3221/IGF-ESIS.57.19.

Harvard

Nawar, M., El-Awady, K., Shehab, H. and Eisa, A. (2021) ‘Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers’, Fracture and Structural Integrity, 15(57), pp. 259–280. doi: 10.3221/IGF-ESIS.57.19.

Vancouver

Nawar M, El-Awady K, Shehab H, Eisa A. Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers. Fracture and Structural Integrity. 2021;15(57):259-280. doi:10.3221/IGF-ESIS.57.19

BibTeX

@article{nawar2021, author = {Nawar, Mahmoud and El-Awady, Kareem and Shehab, Hamdy and Eisa, Ahmed}, title = {Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers}, journal = {Fracture and Structural Integrity}, year = {2021}, volume = {15}, number = {57}, pages = {259--280}, doi = {10.3221/IGF-ESIS.57.19}, url = {https://doi.org/10.3221/IGF-ESIS.57.19}, issn = {1971-8993} }

RIS

TY - JOUR AU - Nawar, Mahmoud AU - El-Awady, Kareem AU - Shehab, Hamdy AU - Eisa, Ahmed TI - Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2021 DA - 2021/06/22 VL - 15 IS - 57 SP - 259 EP - 280 DO - 10.3221/IGF-ESIS.57.19 UR - https://doi.org/10.3221/IGF-ESIS.57.19 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2021 Mahmoud Nawar, Kareem El-Awady, Hamdy Shehab, Ahmed Eisa.

Copyright 
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