Chapter 7
Impact Resistance of Armsector
Steel/Ceramic/UHPCC Layered
Composite Targets Against
30CrMnSiNi2A Steel Projectiles
7.1 Introduction
Aiming to resist the military and accidental high-speed missiles, the developments
of material and structure with high impact resistance have been mainly concerned for
both weapon designers and protective structure engineers. Considering the excellent
impact resistance and ductility, steel has been widely used in tanks, armored vehicles,
and other equipment to resist the high-speed penetrations of projectiles with different
shapes, diameters, and striking velocities. Besides, concrete, one of the most widely
used construction materials, has been extensively applied in protective civil structures
such as nuclear power plant containment, air-raid shelter, etc.
Amounts of experimental and numerical simulation studies on the penetration
resistance of steel targets have been conducted. Silsby (1984), Keele et al. (1990),
Magness and Farrand (1990), and Woolsey et al. (1989a, b, 1990) have conducted
the systematic long-rod uranium or tungsten alloy projectiles penetration tests on
RHA steel (yield strength about 880 ~ 900 MPa) targets, in which the corresponding
striking velocities and length-to-diameter ratios of projectiles are 750 ~ 4500 m/s
and 10 ~ 23, respectively. With the improvement of forging and heat treatment technology, the strength and ductility of steel are also improved. For instances, Fras et al.
(2018, 2019) conducted a series of projectile penetration tests to investigate the fracture and dynamic perforation modes of high strength armor steel (yield strength of
1380 MPa) using experimental and numerical simulation methods. Choudhary et al.
(2020) experimentally assessed the ballistic behavior of newly developed armor
grade steel (yield strength of 1290 MPa) and numerically evaluated its performance
by adopting four different ductile fracture criteria.
Besides, as for the impact resistance of concrete, Forrestal et al. (1994, 1996,
2003) conducted the systematic ogive-nosed steel projectile penetration tests with
different diameters and striking velocities on normal strength concrete targets, in
which the corresponding empirical prediction equations for the depth of penetration
(DOP) were proposed and validated. Furthermore, Hanchak et al. (1992) performed
the projectile perforation tests on finite depth concrete slabs with striking velocities of
© Science Press 2021
Q. Fang et al., UHPCC Under Impact and Blast,
https://doi.org/10.1007/978-981-33-6842-2_7
187
Impact Resistance of Armsector
Steel/Ceramic/UHPCC Layered
Composite Targets Against
30CrMnSiNi2A Steel Projectiles
7.1 Introduction
Aiming to resist the military and accidental high-speed missiles, the developments
of material and structure with high impact resistance have been mainly concerned for
both weapon designers and protective structure engineers. Considering the excellent
impact resistance and ductility, steel has been widely used in tanks, armored vehicles,
and other equipment to resist the high-speed penetrations of projectiles with different
shapes, diameters, and striking velocities. Besides, concrete, one of the most widely
used construction materials, has been extensively applied in protective civil structures
such as nuclear power plant containment, air-raid shelter, etc.
Amounts of experimental and numerical simulation studies on the penetration
resistance of steel targets have been conducted. Silsby (1984), Keele et al. (1990),
Magness and Farrand (1990), and Woolsey et al. (1989a, b, 1990) have conducted
the systematic long-rod uranium or tungsten alloy projectiles penetration tests on
RHA steel (yield strength about 880 ~ 900 MPa) targets, in which the corresponding
striking velocities and length-to-diameter ratios of projectiles are 750 ~ 4500 m/s
and 10 ~ 23, respectively. With the improvement of forging and heat treatment technology, the strength and ductility of steel are also improved. For instances, Fras et al.
(2018, 2019) conducted a series of projectile penetration tests to investigate the fracture and dynamic perforation modes of high strength armor steel (yield strength of
1380 MPa) using experimental and numerical simulation methods. Choudhary et al.
(2020) experimentally assessed the ballistic behavior of newly developed armor
grade steel (yield strength of 1290 MPa) and numerically evaluated its performance
by adopting four different ductile fracture criteria.
Besides, as for the impact resistance of concrete, Forrestal et al. (1994, 1996,
2003) conducted the systematic ogive-nosed steel projectile penetration tests with
different diameters and striking velocities on normal strength concrete targets, in
which the corresponding empirical prediction equations for the depth of penetration
(DOP) were proposed and validated. Furthermore, Hanchak et al. (1992) performed
the projectile perforation tests on finite depth concrete slabs with striking velocities of
© Science Press 2021
Q. Fang et al., UHPCC Under Impact and Blast,
https://doi.org/10.1007/978-981-33-6842-2_7
187