fe-safe

Durability Analysis Software for Finite Element Models.

What's New in fe-safe 6.5-01*

  • fe-safe updated to version 6.5-01 containing bug fixes and some enhancements.
    • Please refer to the fe-safe 6.5 section of this page for more details.
  • Beginning with fe-safe 6.5-01, SIMULIA fe-safe TrueLoad Standalone is no longer available.
  • DSLS licensing was implemented. Requires Abaqus 6.14-3 to be released.

Key Features:

Accuracy improvements in cast iron damage calculation
  • A non-linear damage accumulation applies for gray cast iron. The equations have been reformulated so that they remain stable for all types of loading.
Substantial improvements to the fe-safe/Verity module
  • New automatic weld domain/weld line feature.
  • Shown in Figure 1, the user specifies the weld element domain, then each potential weld crack orientation (toe, root and throat crack planes) is identified automatically and the nodal forces are aligned for each plane.
  • Increased number of integration steps:
    • Integration grid has been made finer over the earlier increments where the damage function changes most rapidly.
    • Rather than using Simpson’s rule, the damage value associated with each integration increment of each cycle has been averaged over the increment using exact analytical integration, prior to summing each increment over cycles.
    • These improvements provide a more accurate overall value for the final life integration, and will be exactly equivalent to Miner’s rule if there is only a single cycle.
  • Simpler way of defining the weld domain and weld lines for Verity on Solid elements, especially when multiple weld lines or several different failure modes are to be analyzed.
  • Multiple weld fillets in the model can be supplied as a single fillet group.
    • The software will automatically locate the separate lines in the various fillets.

What’s New in fe-safe 6.5

Highlights:

  • fe-safe licensing enhancements
  • Vibration fatigue
  • Theory of Critical Distances (TCD)
  • Distributed processing
  • Improved material management

Key Features

  • fe-safe material database provides fe-safe and safe4fatigue with a comprehensive database containing fatigue properties for commonly used materials.
  • Verity in fe-safe is a mesh-insensitive Structural Stress Method to predict failure locations and calculate fatigue lives for welded joints and structures.
  • fe-safe/TMF: Thermomechanical Fatigue (TMF) module provides fatigue life and design life analysis for structures subjected to fluctuating temperatures and stresses.
  • fe-safe/Rotate speeds up the fatigue analysis of rotating components by taking advantages of their axial symmetry.
  • fe-safe/TURBOlife assesses creep damage, fatigue damage and creep fatigue interactions.

Capabilities Summary:

  • Fatigue of welded joints
    fe-safe includes the BS708 analysis as standard. With an exclusive license to the Verity Structural Stress Method, it brings new levels of accuracy to the analysis of structural welds, seam welds and spot welds.
  • Vibration fatigue
    fe-safe uses steady state modal analysis, random transient analysis and power spectral density approach to analyze flexible components and structures with dynamic responses to applied loading.
  • Warranty curve
    fe-safe combines variations in material fatigue strengths and variability in loading to calculate the probability of survival over a range of service lives.
  • Damage per block
    By exporting fatigue damage for each “block” of loading, fe-safe shows clearly which parts of duty cycle are contributing the most fatigue damage for re-design purposes.
  • Manufacturing effects
    fe-safe reads results of FEA of a forming or assembly process to estimate residual stresses for rapid sensitivity analysis.
  • Signal processing
    Signal processing, load history manipulation, fatigue from strain gauges, and generation of accelerated testing signals are among the many features included as standard.