Impact behavior of lightweight fiber-reinforced sandwich composites

J. Y Richard Liew, K. M A Sohel, K. S. Chia, S. C. Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The results of an experimental study on the impact behavior of sandwich composite panels, in-filled with lightweight fiber-reinforced concrete between steel faceplates, are presented. In this study, the panels were impacted by a 58-kg drop-weight projectile with a hemispherical head from a height of 4.0 m. Parametric studies in these tests include concrete type and volume percent of fiber in the concrete core. From the tests, the impact force and indentation in the top steel plate were measured while visual damage in the core material was noted. The experimental results indicated that the plain concrete cores without any fiber reinforcement cracked into separate pieces upon impact. On the other hand, the concrete cores incorporating 1 to 2% fiber content remained intact after impact, with increasing reduction in the average crack width as well as number of crack formations as fiber content increased. In addition, the concrete core incorporating 2% fiber had no radial cracks, which are cracks propagated outwardly from point of impact, except for local indentation. Depth of local indentation was observed to decrease with the increase in core strength. From the impact shear test on lightweight concrete, it is clear that hooked-ends steel fiber performed better under impact.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures
Pages873-878
Number of pages6
Publication statusPublished - 2007
Event3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures - Manchester, United Kingdom
Duration: Jul 30 2007Aug 1 2007

Other

Other3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures
CountryUnited Kingdom
CityManchester
Period7/30/078/1/07

Fingerprint

Concretes
Fibers
Composite materials
Indentation
Steel
Cracks
Steel fibers
Fiber reinforced materials
Projectiles
Crack initiation
Reinforced concrete

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Metals and Alloys

Cite this

Liew, J. Y. R., Sohel, K. M. A., Chia, K. S., & Lee, S. C. (2007). Impact behavior of lightweight fiber-reinforced sandwich composites. In Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures (pp. 873-878)

Impact behavior of lightweight fiber-reinforced sandwich composites. / Liew, J. Y Richard; Sohel, K. M A; Chia, K. S.; Lee, S. C.

Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures. 2007. p. 873-878.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Liew, JYR, Sohel, KMA, Chia, KS & Lee, SC 2007, Impact behavior of lightweight fiber-reinforced sandwich composites. in Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures. pp. 873-878, 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures, Manchester, United Kingdom, 7/30/07.
Liew JYR, Sohel KMA, Chia KS, Lee SC. Impact behavior of lightweight fiber-reinforced sandwich composites. In Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures. 2007. p. 873-878
Liew, J. Y Richard ; Sohel, K. M A ; Chia, K. S. ; Lee, S. C. / Impact behavior of lightweight fiber-reinforced sandwich composites. Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures. 2007. pp. 873-878
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