![]() ![]() We need to assess the resistance to buckling with deflection dependent loading paths and possible plastic behavior. Perhaps the assembly is in an overload condition and we need to check that plastic growth is stable and there is no ultimate failure – bent but not broken!Ī flange on a connector arm may be under compressive load, but also sees heavy bending. Looking at a bolt heavily loaded in an attachment fitting, it may be that the change in stiffness and load distribution path are critical in evaluating peak stress levels. One of the most difficult tasks facing an engineer is to decide whether a nonlinear analysis is really needed and if so what degree of nonlinearity should be applied. All physical systems in the real world are inherently nonlinear in nature. ![]() Nonlinear behaviour can take many forms and can be bewildering to the newcomer. Break down your nonlinear problem into clearly defined steps.
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