Impact Simulation of an Asteroid | ANSYS Tutorial

✍️ How can we simulate an asteroid impact with earth? Ansys explicit dynamics gives us a strong and robust tool to see the effects of such a phenomenon through impact simulation.

In mechanical science, an impact is a high force or shock applied over a short period when two or more bodies collide. Every year we are hearing that a dangerous asteroid is approaching earth. These asteroids or planetoids are minor planets of the inner Solar System which can be very big and usually travelling with very high speeds.

Asteroids with a 1 km (0.62 mi) diameter strike Earth every 500,000 years on average. Large collisions – with 5 km (3 mi) objects – happen approximately once every twenty million years. The last known impact of an object of 10 km (6 mi) or more in diameter was at the Cretaceous–Paleogene extinction event 66 million years ago which leads to devastating of the global environment.

In this tutorial we are going to consider an asteroid strike as an impact phenomenon and analyze it through ANSYS Explicit Dynamic. In general, we will see how to obtain a reliable mesh setting for relatively big objects, how to select explicit materials, how to use projection feature in Design Modeler, how to define mesh sizing, how to use time step in analysis setting, and finally reviewing analysis results.

If you find this tutorial useful, we recommend to take a look at our interesting tutorial about simulation of the impact phenomena.

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