Does anyone know how is the curvature distribution within Lp in the beamWithhinges element. Is it constant? Decrease lienearly to elastic? or chage according to the moment-curvature?
Many thanks,
L
beamWithHinges curvature distribution
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Yes I did. What I understand ftom the paper (ASCE Scott and Fenves) is that the curvature decrease lienearly to elastic. However, another reference that use this element seems to imply that the curvature varies according to the moment distribotion and M-C relation of the section. I do not understand how this can be done with a single integration point, however I'm not a finite element person and most of the stuff in the paper is beyond my knowledge.
The curvature is sampled at discrete points in the plastic hinge regions and treated as constant over the associated integration weights.
Take a look at Fig.2 in the reference paper. The cross-hatched areas are the approximate integration of the "true" curvature distribution. Although the figure is for Gauss-Lobatto integration, the concept is identical for the plastic hinge integration methods.
Take a look at Fig.2 in the reference paper. The cross-hatched areas are the approximate integration of the "true" curvature distribution. Although the figure is for Gauss-Lobatto integration, the concept is identical for the plastic hinge integration methods.