materjali tugevusnäitaja; voolavusnähtuse korral pinge, mille saavutamisel katse käigus toimub plastne deformeerumine ilma jõudu suurendamata
the first stress in a material, usually less than maximum attainable stress, at which an increase in strain occurs without an increase in stress
Good to know
Only certain metals - those which exhibit a localized, heterogeneous type transition from elastic to plastic deformation produce a yield point. If there is a decrease in stress after yielding, a distinction may be made between upper and lower yield points.