Engineering analysis and design software
Composites analysis

Software Specification

Note that because advanced elements are required for this type of analysis LUSAS Composite is only available as a 'Plus' version.

LUSAS Composite plus

A feature-rich engineering analysis system for advanced composite analysis consisting of:

  • Extended advanced high-performance element library including:
  • Bars
  • Thick + thin beams
  • Plane stress/strain continuum
  • Axisymmetric solid continuum
  • Solid continuum (high order)
  • Flat thin membranes
  • Curved thin semiloof shells
  • Curved thick shells
  • Axisymmetric membranes
  • Axisymmetric thin shells
  • Axisymmetric solid continuum with non-axisymmetric loading
  • Generalised joint/springs/gaps.
  • Advanced materials including:
  • Isotropic, orthotropic, anisotropic and rigidity models, composite lay-ups for shells and solids, temperature dependency.
  • Integrated Windows User Interface for Vista, 7, 8, 8.1, 10
  • Integrated DXF and IGES interfaces
  • Fast Iterative Solver Technology

For: Linear static stress, linear buckling, natural frequency, fatigue, nonlinear and dynamic analysis problems when used with the appropriate LUSAS Composite plus software option.


LUSAS Composite plus software options

Included for new orders:

Fast Multifrontal Solvers

  • Fast Multifrontal Direct Solver
  • Fast Multifrontal Block Lanczos Eigensolver
  • Complex Eigensolver
  • Fast Parallel Direct Solver
  • Fast Parallel Iterative Solver

Available for purchase to increase the analysis and design capabilities of LUSAS Composite plus:

IMDplus Analysis

  • Multiple event assessment
  • Linear dynamics effects

Nonlinear Analysis

  • Large displacement, large rotation and large strain geometric nonlinearities
  • Material nonlinearity including plasticity, concrete, damage, volumetric, geotechnical, rubber, creep, temperature dependent, and user supplied models
  • Incremental, iterative (MNR or NR), line search and arc length solution procedures
  • Follower forces
  • Slideline/slidesurface contact algorithms

Dynamic Analysis

  • Spectral and forced response
  • Modal or Rayleigh damping
  • Transient dynamics
  • Automatic time step selection
  • Nonlinear dynamics
  • Time dependent materials and loading

Thermal / Field Analysis

  • Steady state and transient
  • Linear, nonlinear and field dependent material models
  • Automatic time steps
  • Link, line, plane, axisymmetric and solid field elements

Related Services Available

LUSAS High Precision Moulding (HPM) 
  • Accurately predict the distortion of laminated composite parts during manufacture and provide reverse engineered surfaces to create "right first time" tooling.

Find out more

Contact us for a quotation

Software Information


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LUSAS is a trademark and trading name of Finite Element Analysis Ltd. Copyright 1982 - 2019. Privacy policy. 
Any modelling and analysis capabilities described on this page are dependent upon the LUSAS software product and version in use. Last modified: July 03, 2019.