190
7 Impact Resistance of Armor Steel/Ceramic/UHPCC Layered …
7.2 Impact Test on 10CrNi3MoV21A Armor Steel/SiC
Ceramic/UHPCC Composite Targets and Numerical
Simulations
7.2.1 Impact Test
7.2.1.1 Projectile and Target
(1) Projectile
As depicted in Fig. 7.1a, the ogive-nosed projectile machined from 30CrMnSiNi2A
steel with the yield strength of about 1260 MPa was designed and used in the test.
The geometric dimensions of the projectile are illustrated in Fig. 7.1b, where the
caliber-radius-head (CRH, the ratio of the ogival nose curvature radius to the shank
diameter) of projectile nose is 4, and the length and diameter are 180 mm and 30 mm,
respectively. A polymer obturator with the mass of about 30 g was attached to the
projectile before the test, and the corresponding total mass of the projectile was about
682 g.
(2) Armor steel plate
As shown in Fig. 7.2a, the 10CrNi3MoV21A armor steel plate with the width of
200 mm × 200 mm and the thickness of 5 mm and 10 mm were adopted, respectively.
The chemical components of the 10CrNi3MoV21A armor steel are given in Table
7.1, and the corresponding static yield strength and ultimate tensile strength were
measured as about 665 MPa and 709.5 MPa through the quasi-static tensile test
introduced in Sect. 7.2.2.2.
(3) SiC ceramic plate
The impact resistance of common ceramic materials, i.e., Al 2 O 3 , SiC, B 4 C and AlN
were assessed quantitatively by Reaugh et al. (1999). Besides, by further considering the physical property and sintering cost, SiC ceramic plate with the width of
150 mm × 150 mm and the thickness of 6 mm and 11 mm were adopted at present,
60°
180mm
82.4mm
87.6mm
18mm
30mm
(a)
(b)
Fig. 7.1 Ogive-nosed projectile a photograph b dimensions
7 Impact Resistance of Armor Steel/Ceramic/UHPCC Layered …
7.2 Impact Test on 10CrNi3MoV21A Armor Steel/SiC
Ceramic/UHPCC Composite Targets and Numerical
Simulations
7.2.1 Impact Test
7.2.1.1 Projectile and Target
(1) Projectile
As depicted in Fig. 7.1a, the ogive-nosed projectile machined from 30CrMnSiNi2A
steel with the yield strength of about 1260 MPa was designed and used in the test.
The geometric dimensions of the projectile are illustrated in Fig. 7.1b, where the
caliber-radius-head (CRH, the ratio of the ogival nose curvature radius to the shank
diameter) of projectile nose is 4, and the length and diameter are 180 mm and 30 mm,
respectively. A polymer obturator with the mass of about 30 g was attached to the
projectile before the test, and the corresponding total mass of the projectile was about
682 g.
(2) Armor steel plate
As shown in Fig. 7.2a, the 10CrNi3MoV21A armor steel plate with the width of
200 mm × 200 mm and the thickness of 5 mm and 10 mm were adopted, respectively.
The chemical components of the 10CrNi3MoV21A armor steel are given in Table
7.1, and the corresponding static yield strength and ultimate tensile strength were
measured as about 665 MPa and 709.5 MPa through the quasi-static tensile test
introduced in Sect. 7.2.2.2.
(3) SiC ceramic plate
The impact resistance of common ceramic materials, i.e., Al 2 O 3 , SiC, B 4 C and AlN
were assessed quantitatively by Reaugh et al. (1999). Besides, by further considering the physical property and sintering cost, SiC ceramic plate with the width of
150 mm × 150 mm and the thickness of 6 mm and 11 mm were adopted at present,
60°
180mm
82.4mm
87.6mm
18mm
30mm
(a)
(b)
Fig. 7.1 Ogive-nosed projectile a photograph b dimensions