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enquire-now-training-courses-200This training is not a standard training program carried out locally. This training will be conducted by LUSAS Consultant from UK therefore additional cost will incurred.

Duration : 3-days

A three-day course aimed at all engineering disciplines, for users who are familiar linear static structural analysis in LUSAS. The course covers the theoretical and practical considerations of nonlinear analysis. The course consists equally of presentations and ‘hands-on’ sessions. Optional modules are available to cater for product-specific analyses such as composite failure modelling.

Day 1:  Introduction to Nonlinear Analysis.

Introduces the concepts, types and terminology of nonlinear finite element analysis. Introduces the concepts, types and terminology of nonlinear finite element analysis. The inner workings of a LUSAS nonlinear run are described to aid the user in the specification of LUSAS solution data. Also considered is geometric nonlinearity looking at large displacement analysis.

  • Fundamentals of nonlinearity
  • Material nonlinearity
  • Geometric nonlinearity
  • Nonlinear boundary conditions
  • Nonlinear analysis concepts
  • Nonlinear analysis specification in LUSAS  
  • Nonlinear solution strategy
  • Incremental loading procedures
  • Newton-Raphson iteration methods
  • Iterative acceleration
  • Constrained solution methods
  • Convergence criteria
  • Solution termination

Day 2:  Material Nonlinear

Elasto-plastic analysis is covered in some detail, comparing the different material models available in LUSAS. Introducing a wide range of material models, from ductile fracture, through volumetric crushing to rubber.

  • Material nonlinearity
  • Elasto-plastic behaviour
  • Continuum plasticity models
  • Elasto-plastic analysis of frames
  • Interface plasticity    
  • Ductile fracture
  • Continuum damage
  • Volumetric crushing (foam)
  • Hyper-elastic (rubber)
  • Visco-elasticity (creep)
  • User-defined material models

Day 3: Nonlinear Boundary Conditions

Covering both simple lift-off and general contact. The LUSAS slideline facility is described in detail for use in general contact and impact analyses.

  • Joint element methods
  • Slideline methods
  • Practical considerations

Course Prerequisites : Lusas Introduction