Response of small scale ultra high performance fibre reinforced concrete slabs to blast loading

Abstract This paper provides a systematic study of the performance of ultra high performance fibre reinforced concrete (UHPFRC) slabs under close-in explosions. In the study, the UHPFRC slabs were manufactured with varying amounts and types of steel fibres. In field tests, various PE4 charge sizes were employed to generate blast load until a sudden increase in maximum deflection was observed. Peak 1/4 span deflections and development of slab cracks were recorded. With the results, the effect of steel fibres on performance of UHPFRC slabs can be better clarified. Static tests were also used to study the effect of fibres on the behaviour of UHPFRC specimens, results indicate that fibre distribution and orientation can clearly affect UHPFRC slab behaviour. Finally, finite element modelling was employed to simulate the performance of UHPFRC slabs under blast loading and these modelling results were compared to test data. Based on the comparison results, potential further enhancement of numerical models is discussed.

[1]  V. S. Gopalaratnam,et al.  Properties of Steel Fiber Reinforced Concrete Subjected to Impact Loading , 1986 .

[2]  Sidney Mindess,et al.  Fibre reinforced concrete beams under impact loading , 1996 .

[3]  Graham Schleyer,et al.  Modelling the response of UHPFRC panels to explosive loading , 2010 .

[4]  Graham Schleyer,et al.  On pulse pressure loading of plates with holes , 2012 .

[5]  L. Javier Malvar,et al.  Review of Strain Rate Effects for Concrete in Tension , 1998 .

[6]  Wei Sun,et al.  Characteristics of high-performance steel fiber-reinforced concrete subject to high velocity impact , 2000 .

[7]  S. Millard,et al.  Dynamic enhancement of blast-resistant ultra high performance fibre-reinforced concrete under flexural and shear loading , 2010 .

[8]  Steve Millard,et al.  Blast tests of ultra high performance fibre reinforced concrete panels , 2010 .

[9]  N. Ramana,et al.  Response of SIFCON two-way slabs under impact loading , 2010 .

[10]  Soheil Mohammadi,et al.  Experimental and numerical investigations of low velocity impact behavior of high-performance fiber-reinforced cement based composite , 2010 .

[11]  Fang Wang,et al.  Reinforced Concrete Slab Subjected to Close-in Explosion , 2008 .

[12]  H. Hao,et al.  Mesoscale modelling of fibre reinforced concrete material under compressive impact loading , 2012 .

[13]  L. Ågårdh.  Fe-Modeling of Fibre Reinforced Concrete Slabs Subjected to Blast Load , 1997 .

[14]  Steve Millard,et al.  Assessment of fibre orientation in ultra high performance fibre reinforced concrete and its effect on flexural strength , 2010 .

[15]  P. Gauvreau,et al.  Response of ultra-high performance fiber reinforced concrete (UHPFRC) to impact and static loading , 2008 .

[16]  Andrew S. Whittaker,et al.  Blast testing of ultra-high performance fibre and FRP-retrofitted concrete slabs , 2009 .

[17]  Graham Schleyer,et al.  UHPFRC panel testing , 2011 .

[18]  Yong Lu,et al.  Evaluation of typical concrete material models used in hydrocodes for high dynamic response simulations , 2009 .

[19]  Mark K McVay.  Spall Damage of Concrete Structures , 1988 .

[20]  Comite Euro-International du Beton,et al.  CEB-FIP Model Code 1990 , 1993 .

[21]  R. N. Swamy,et al.  Impact resistance of steel fibre reinforced lightweight concrete , 1982 .

[22]  Tuan Ngo,et al.  Behavior of Ultrahigh-Strength Prestressed Concrete Panels Subjected to Blast Loading , 2007 .

[23]  L. Malvar,et al.  A PLASTICITY CONCRETE MATERIAL MODEL FOR DYNA3D , 1997 .

[24]  Nemkumar Banthia,et al.  Impact Response of Ultra-High-Strength Fiber-Reinforced Cement Composite , 2002 .

[25]  S. Mindess,et al.  Impact resistance of fibre-reinforced concrete , 2009 .

[26]  Graham Schleyer,et al.  Briefing: Blast tests of fibre-reinforced concrete panels , 2010 .

[27]  G. Schleyer,et al.  Numerical simulation of ultra high performance fibre reinforced concrete panel subjected to blast loading , 2014 .

[28]  T S Lok,et al.  STEEL-FIBRE-REINFORCED CONCRETE PANELS EXPOSED TO AIR BLAST LOADING. , 1999 .