In this webinar, we look at two key areas: Debugging modelling errors using model stability analysis and the question Why use assemblies in GSA?
Peter Debney is Chartered Structural Engineer, a member of both the Institute of Structural Engineers (MIStructE) and the International Association for Bridge and Structural Engineering (IABSE), and a visiting lecturer at the University of Bradford. He is a Senior Consultant working for Arup in the Oasys software group as an application specialist for the structural and pedestrian modelling software suites.
About this webinar
Model instability analysis
Due to the uses of powerful computers, finite element models tend to be large and complex nowadays, this makes it difficult to find modelling problems in a computer model. In this webinar, an analysis tool that can help to detect modelling problem in a structural model is introduced. How it works in GSA is explained and a worked example is demonstrated.
Presenter: Ramaseshan Kannan (PhD, MEng, BEng)
Ramaseshan has been a GSA developer since 2005. His work includes matrix solvers and numerical analysis. Along with co-presenter Stephen Hendry and research collaborators, he developed the numerical basis for the model stability analysis method.
Finite element analysis requires structures to be defined as many small elements. However for design the engineer is often thinking in terms of large entities, such as cores or trusses, and would like to be able to aggregate results from the elements to give results for these entities. Assemblies are a way to define these higher level entities and allow results, such as bending moments, to be displayed on them. In this webinar the concept of a GSA assembly is introduced, and the uses of assembly are discussed.
Presenter: Stephen Hendry (PhD, MBCS, CITP)
Stephen is one of the main developers of GSA with particular responsibility for solver development. This has included development of solvers for P-delta analysis, modal dynamic and buckling analysis, and response spectrum analysis for seismic problems. He is interested in how the analysis results can be made more accessible to the engineer and assemblies are one way to address this problem.