I'd also like to know what is a constraint?
Explanation from Alloprof
This Explanation was submitted by a member of the Alloprof team.
Thanks for your question ShyButterfly6490!
A constraint is the effect of a force. More precisely, the constraints are broken down into five categories:
• Crushing : The reduction in the size of an object under the effect of a compressive force. For example, cars driving on a road cause asphalt crushing.
• Elongation (or extension) : The stretching of a body under the effect of a tensile force. For example, pulling on the straps of a heavy plastic bag will cause the bag to stretch.
• Torsion : Two rotational movements in two opposite directions. For example, the twist of a wet rag.
• Bending : Several forces exerted in several places on an object cause it to bend. For example, vehicles in the middle of a bridge and its supporting structures cause the bridge to flex.
• Shear : Two forces exerted in parallel at the same place and in two opposite directions. For example, scissors cause the paper they are cutting to shear.
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