A case study to quantify prediction bounds caused by model-form uncertainty of a portal frame
Model form uncertainty is pursued in a combined experimental and numerical study. Application is the first four resonant frequencies of an aluminum portal frame. Experimental variability is characterized through parametric study of the joints. Two numerical models are developed with differing representations of the joints. Numerical prediction bounds considering model form uncertainty are produced.
parametric study uncertainty quantification experimental uncertainty test-analysis correlation finite element modeling bounding calculations