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In this tutorial, the Simulation Impact analysis of CFRP/PEEK/ceramic/gelatin composite for finding behind the armor trauma in Abaqus has been investigated. The CFRP is modeled as a three-dimensional shell part. The polyether-ether-ketone(PEEK) is modeled as a thin solid layer to protect the other layers. The silicon carbide or ceramic is modeled as a three-dimensional solid layer at the middle. The gelatin or human tissue is model as a three-dimensional solid layer as a back plate. The projectile is modeled as a rigid body. You can see a figure of the assembled parts below
To model CFRP materail as the first layer of the panel, some layers with elastic property and Hashin’s damage criterion is selected.
A ceramic-based armor system must arrest bullet penetration and dissipate a large amount of impact energy. Taking the total linear momentum transferred to the wearer of a ceramic armor as a measure of the behind-armor ballistic/blunt trauma (BABT), we study the effect on the BABT of adding a thin polyether-ether-ketone (PEEK) layer on the face of a Silicon Carbide (SiC) ceramic target under blast load to investigate the effect of detonation over the human tissue
The SiC is modeled as a Johnson-Holmquist (JH-2) material model. The SiC material is very hard and mainly used under compressive load conditions and can only sustain very little tension. Typical applications include bulletproof vests and car brakes due to its high endurance. The strength has a dependence on pressure. In high-speed impact applications, damage to the material plays an important role in the evolution of the strength. The totally failed silicon carbide will not sustain any load. The JH-2 model assumes that the damage variable increases progressively with plastic deformation
To model PEEK, the Johnson-Cook hardening and damage is selected. To model gelatin elastic-plastic material format is acceptable. All materials are assumed to be homogeneous and isotropic. In order to quantify the momentum transferred to the wearer of the ceramic armor, the PEEK layer is bonded to the ceramic. To model gelatin behavior, the elstic-plastic model with equation of state is considered.
The dynamic explicit step with a specific time is selected. The perfect contact is assumed between the panel layers, the surface to surface contact algorithm with contact property as friction is used between the rigid body and frontal surface of CFRP. Because of the symmetry, the proper boundary conditions are assigned to the panel, the initial velocity is applied to the projectile also. The msh should be fine to obtain the correct resutls
After the simulation, all resutls such as stress, strain, displacement, damage, failure, penetration, and … are available, you can see some figures for the results below
You can provide CAE ,INP,and English video files of this simulation here. The cost of these files is Twenty-six Euros. you can click on the bellow bottom to begin the process
You can purchase the tutorial through a PayPal account, a Visa, or a Master card, just before payment,send me an email to this address: karampourp@gmail.com
