Von Mises yield criterion
The von Mises yield criterion is a way to predict when a material, like metal, will start to deform permanently under stress. It suggests that a material will yield, or begin to flow, when the combined stresses acting on it exceed a certain threshold. This threshold is determined by the material's properties and is based on the idea that it's not just the maximum stress, but rather the way all the stresses interact that matters. Essentially, it helps engineers ensure that structures will remain safe and intact under various loads.
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The von Mises yield criterion is a principle used in engineering to predict when materials will start to deform permanently under stress. It suggests that a material will yield, or break, when the combination of different types of stress (like tension and compression) reaches a certain level, regardless of how those stresses are applied. This criterion helps engineers design structures and components by ensuring they can withstand expected loads without failing, enabling safer and more reliable construction in various applications, such as bridges and buildings.