The torsion mode looks strange in the postprocessor view due to a spurious graphics effect. I labeled this the ‘blunderbuss effect’ many years ago. The figure shows a sketch of this. If a tube twists under torsion and one end is held, all post processors will show the free end dilating a maximum and then […]

The Blunderbuss effect is described  in the Introduction to Dynamics e-Learning course. Torsional modes can look strange in the post-processor view due to a spurious graphics effect. I labeled this the ‘blunderbuss effect’ many years ago. This module describes this effect further with animations of torsional modes The lesson within the module shows a video of the effect. Data […]