Simulation high-velocity impact of a ceramic target with Johnson–Holmquist material model

In this video Simulation high-velocity impact of a ceramic target with Johnson–Holmquist material model has been studied.Ceramic materials are commonly used in armor protection applications. In recent years Johnson, Holmquist, and their coworkers have developed a series of constitutive relations to simulate the response of ceramic materials under large strain, high-strain rate, and high-pressure impacting conditions. In this example the JHB and JH-2 material models are explored to investigate the penetration velocity of a gold projectile impacting on a silicon carbide target. The computed results are compared with published results given by Holmquist and Johnson.The target material is silicon carbide. This 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 projectile is gold, which is soft compared to the target material

You can see a figures of the parts positions in the simulation

The Lagrangian description is used for both projectile and target. General contact with surface erosion is used for all three cases. Element deletion and node erosion are considered.the JH-2 model. Unlike the JHB model, the JH-2 model assumes that the damage variable increases progressively with plastic deformation.The JH-2 model assumes that the damage variable increases gradually with plastic deformation

You can see some figures of the simulation at below

You can provide CAE ,INP,and English video files of this simulation here. The cost of these files is Twenty-Seven Euros. you can click on the bellow bottom to beginning process

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