- #1
TryingToThink
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I don't really understand how to calculate the stress in a deformable body that is unconstrained and acted on by an external force. For example, consider a rod with a circular cross-section lying parallel to the x-axis. If one end is constrained from translating in the x direction and the other end has a pressure applied to it, the normal stress in the x direction is basic to calculate. But what if the situation is identical except the one end is not constrained so that the rod can accelerate? How does one determine the stress in such a situation? Thank you