Explicit Dynamic Analysis captures the physics of short duration events, where large amounts of energy are converted from one form to another. Energy can neither be created nor destroyed, but due to various factors, we might often observe some energy imbalance in Explicit Dynamic Analysis. Hence, a primary question arises whether the obtained results are accurate or not. In this video, we will see various factors that cause the energy imbalance in Explicit Dynamic Analysis and how to handle them.
0:00 - Intro
1:56 – Energy Conservation of a system
3:15 – Energy Error in Explicit Dynamics
3:58 – Energy Ratio in Explicit Dynamics
4:38 – Sources of Energy Imbalance: Hourglass Energy
5:53 – Sources of Energy Imbalance: Erosion
6:55 – Sources of Energy Imbalance: Boundary Conditions
7:57 – Sources of Energy Imbalance: Detonation/Explosion
8:36 – Handling Energy Imbalance in Explicit Dynamics
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