Materiales.Compuestos at 19:40, 26 November 2022

2022-11-26T19:40:31Z

Materiales.Compuestos at 19:38, 26 November 2022

2022-11-26T19:38:14Z

Show changes

Scipediacontent at 12:07, 7 May 2022

2022-05-07T12:07:55Z

Show changes

Scipediacontent: Scipediacontent moved page Draft Content 353388156 to Pinto et al 2021a

2022-03-31T19:06:34Z

Scipediacontent moved page Draft Content 353388156 to Pinto et al 2021a

Scipediacontent: Created page with "== Abstract == One of the main challenges for UAVs (Unmanned Aerial Vehicles) used in defence and military operations is to effectively conclude a flight mission in a harsh e..."

2022-03-31T19:06:32Z

Created page with "== Abstract == One of the main challenges for UAVs (Unmanned Aerial Vehicles) used in defence and military operations is to effectively conclude a flight mission in a harsh e..."

New page

== Abstract ==

One of the main challenges for UAVs (Unmanned Aerial Vehicles) used in defence and military operations is to effectively conclude a flight mission in a harsh environment. The platform survivability is critical, therefore it is imperative that the vehicle is able to withstand ballistic impacts in flight and still be able to reach its destination.
In the present work, the authors discuss the development of a lightweight ballistic armour to protect critical areas of the vehicle, such as the control systems and/or the payload. The structure response during and after a 9 mm bullet impact, shows that the proposed hybrid composite panels will be able to withstand high-energy ballistic impacts after optimization.
The FEA (Finite Element Analysis) method is implemented to study the performance of ceramic protective plates attached to the CFRP (Carbon Fibre Reinforced Polymer) structural platform. An Eurelian-Lagrangian modelling technique is implemented with different damage models for the various materials involved in the impact event in order to properly capture each material response in this complex load scenario.
Numerical studies are validated experimentally. The base structural CFRP is cured in autoclave followed by a post-cure to integrate the remaining components. Experimental tests were conducted at a shooting range where 9 mm projectiles are fired at a distance of 10 m of the target plates. Data is collected recurring to a chronograph/high speed camera combination apparatus to measure the impact and residual velocity and the projectile deformation/damage. Numerical models show good correlation with the experimentally measured data.

== Full document ==
<pdf>Media:Draft_Content_353388156native-articles-341.pdf</pdf>

@@ Line 29: / Line 29: @@
 <div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
-<span style="text-align: center; font-size: 75%;">'''Figure 1.'''</span> <span style="text-align: center; font-size: 75%;">CFRP control plate (left) and CFRP plate with bounded ceramic hexagons on top (right).</span></div>
+<span style="text-align: center; font-size: 75%;">'''Figure 1.'''CFRP control plate (left) and CFRP plate with bounded ceramic hexagons on top (right).</span></div>
 ==3 Experimental test campaign==
@@ Line 43: / Line 43: @@
 Table 1, 2, 3 and 4 summarize the material properties necessary for each component as per each respective chosen damage criteria and Figure 2 shows a schematic of the numerical test apparatus.
-<span style="text-align: center; font-size: 75%;">'''Table 1.'''</span> <span style="text-align: center; font-size: 75%;">HS300/ER563 UD CFRP elastic and strength properties</span>
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 {| style="width: 100%;margin: 1em auto 0.1em auto;border-collapse: collapse;"
@@ Line 101: / Line 102: @@
-<span style="text-align: center; font-size: 75%;">'''Table 2.'''</span> <span style="text-align: center; font-size: 75%;">MTC510 epoxy adhesive film cohesive properties</span>
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 {| style="width: 100%;border-collapse: collapse;"
@@ Line 147: / Line 149: @@
-<span style="text-align: center; font-size: 75%;">'''Table 3.'''</span> <span style="text-align: center; font-size: 75%;">Ceramic properties required for JHB and JH-2 formulations</span>
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 {| style="width: 100%;border-collapse: collapse;"
@@ Line 201: / Line 204: @@
-<span style="text-align: center; font-size: 75%;">'''Table 4.'''</span> <span style="text-align: center; font-size: 75%;">Lead elastic and plastic properties for Eurelian formulation</span>
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 {| style="width: 100%;border-collapse: collapse;"
@@ Line 231: / Line 235: @@
 [[File:Pinto_et_al_2021a-image6-c.png|centre|600x600px]]
-<span style="text-align: center; font-size: 75%;">'''Figure 2.''' Schematic of the target showing the different layers of material and representation of the bullet.</span>
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 ==5 Results and discussion==
@@ Line 250: / Line 255: @@
 [[File:Pinto_et_al_2021a-image10-c.png|centre|600x600px]]
-'''Figure 3.''' Numerical model of the bullet penetrating the CFRP, depicting the damage in the HS300/ER563 material and bullet plastic deformation from different angles (entry side – left, side view – middle and exit side - right).
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 [[File:Pinto_et_al_2021a-image11.png|centre|600x600px]]
-'''Figure 4.''' Numerical model of the bullet penetrating the CFRP-ceramic, depicting the damage in the HS300/ER563 and ceramic materials and the bullet plastic deformation from different angles (entry side – left, side view – middle and exit side - right).
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 Table 7 and 8 summarize the results of the experimental measurements and the residual velocity obtained with the numerical models. Figure 5 and 6 show the experimental results overlapped with the numerical data for the CFRP plate and for the CFRP plate with ceramic protection respectively. There is good correlation between the model and the experimental results when comparing the residual velocities.
-'''Table 5.''' Summary of the experimental test data
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 {| style="width: 100%;margin: 1em auto 0.1em auto;border-collapse: collapse;"
@@ Line 275: / Line 283: @@
-<span style="text-align: center; font-size: 75%;">'''Table 6.''' Summary of the FEA numerical models.</span>
+<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">
 {| style="width: 100%;margin: 1em auto 0.1em auto;border-collapse: collapse;"

← Older revision	Revision as of 19:06, 31 March 2022
(No difference)

Pinto et al 2021a - Revision history

Materiales.Compuestos at 19:40, 26 November 2022

Materiales.Compuestos at 19:38, 26 November 2022

Scipediacontent at 12:07, 7 May 2022

Scipediacontent: Scipediacontent moved page Draft Content 353388156 to Pinto et al 2021a

Scipediacontent: Created page with "== Abstract == One of the main challenges for UAVs (Unmanned Aerial Vehicles) used in defence and military operations is to effectively conclude a flight mission in a harsh e..."