Chapter 13
Experimental and Numerical Studies
on Dynamic Behavior of Reinforced
UHPCC Panel Under Medium-Range
Explosions
13.1 Introduction
Over the past several decades, the explosive effects that stem from terrorist attacks
and industrial accidents have attracted increasingly more public concerns. The occurrence of explosions will threaten the safety of the surrounding building structures
and lead to huge economic losses and extensive casualties. Therefore, it is of great
significance to improve the blast-resistant performance of civil structures, especially
for the strategically vital infrastructures, landmark buildings, and military or civil
shelters, etc. Concrete is a widely applied construction material and the traditional
normal strength concrete (NSC) structures have limited blast-resistance attributed
to its low tensile capacity and energy absorption capacity. Comparably, ultra-high
performance cementitious composites (UHPCC) is a relatively new type of cementitious material mixing with very low water-to-binder ratio, high amount of high-range
water reducer (HRWR), fine aggregates and high-strength steel or organic fibers. Due
to its prominent mechanical properties, i.e., high compressive and tensile strengths,
high ductility as well as the high fracture energy, UHPCC is regarded as the most
prominent construction materials for both civil and military structures to resist the
intensive loadings, e.g. high-speed projectile penetration (Habel and Gauvreau 2008;
Wu et al. 2015; Sovják et al. 2015), low-velocity drop hammer impact (Fan et al.
2019; Farnam et al. 2010; Wang et al. 2019a, b; Wei et al. 2019; Yoo et al. 2015) and
blast (Barnett et al. 2010; Ellis et al. 2014; Foglar et al. 2017; Kuznetsov et al. 2006;
Li et al. 2015a, b, 2016; Lin 2018; Mao et al. 2014, 2015; Ngo et al. 2007; Peng
et al. 2019; Schleyer et al. 2011; Wu et al. 2009; Yi et al. 2012; Zhou et al. 2008).
The blast-resistant performance of reinforced UHPCC panels is mainly concerned
in this chapter.
From the detailed review of the existing related work in Sect. 13.2, generally,
the existing related work still has the following limitations: (i) Based on the plenty
of the test data, Orton et al. (2014) defined the scaled distance Z ≤ 0.4 m/kg
1/3 ,
0.4 < Z≤1.0 m/kg
1/3 and Z > 1 m/kg
1/3 (Z = R/W
1/3 is the scaled distance, R is the
standoff distance from the explosive center to the surface of structure, W is the charge
© Science Press 2021
Q. Fang et al., UHPCC Under Impact and Blast,
https://doi.org/10.1007/978-981-33-6842-2_13
431
Experimental and Numerical Studies
on Dynamic Behavior of Reinforced
UHPCC Panel Under Medium-Range
Explosions
13.1 Introduction
Over the past several decades, the explosive effects that stem from terrorist attacks
and industrial accidents have attracted increasingly more public concerns. The occurrence of explosions will threaten the safety of the surrounding building structures
and lead to huge economic losses and extensive casualties. Therefore, it is of great
significance to improve the blast-resistant performance of civil structures, especially
for the strategically vital infrastructures, landmark buildings, and military or civil
shelters, etc. Concrete is a widely applied construction material and the traditional
normal strength concrete (NSC) structures have limited blast-resistance attributed
to its low tensile capacity and energy absorption capacity. Comparably, ultra-high
performance cementitious composites (UHPCC) is a relatively new type of cementitious material mixing with very low water-to-binder ratio, high amount of high-range
water reducer (HRWR), fine aggregates and high-strength steel or organic fibers. Due
to its prominent mechanical properties, i.e., high compressive and tensile strengths,
high ductility as well as the high fracture energy, UHPCC is regarded as the most
prominent construction materials for both civil and military structures to resist the
intensive loadings, e.g. high-speed projectile penetration (Habel and Gauvreau 2008;
Wu et al. 2015; Sovják et al. 2015), low-velocity drop hammer impact (Fan et al.
2019; Farnam et al. 2010; Wang et al. 2019a, b; Wei et al. 2019; Yoo et al. 2015) and
blast (Barnett et al. 2010; Ellis et al. 2014; Foglar et al. 2017; Kuznetsov et al. 2006;
Li et al. 2015a, b, 2016; Lin 2018; Mao et al. 2014, 2015; Ngo et al. 2007; Peng
et al. 2019; Schleyer et al. 2011; Wu et al. 2009; Yi et al. 2012; Zhou et al. 2008).
The blast-resistant performance of reinforced UHPCC panels is mainly concerned
in this chapter.
From the detailed review of the existing related work in Sect. 13.2, generally,
the existing related work still has the following limitations: (i) Based on the plenty
of the test data, Orton et al. (2014) defined the scaled distance Z ≤ 0.4 m/kg
1/3 ,
0.4 < Z≤1.0 m/kg
1/3 and Z > 1 m/kg
1/3 (Z = R/W
1/3 is the scaled distance, R is the
standoff distance from the explosive center to the surface of structure, W is the charge
© Science Press 2021
Q. Fang et al., UHPCC Under Impact and Blast,
https://doi.org/10.1007/978-981-33-6842-2_13
431