CAEfatigue is a powerful tool to conduct a durability analysis on a structure whether it is in the time or fervency domain.
It also has the capability to:
These capabilities are discussed in more detail below.
Solving fatigue on a vibrating structure using PSD inputs
There are currently 2 modules available:
CFV-BASE: This module provides random response and fatigue result outputs for a structure undergoing loading input from a single random PSD. Additional loading from deterministic inputs and mean offsets can also be added.
The following outputs can be provided:
The following loading inputs are supported:
Typical PSD inputs include the following:
CFV-MULTI: This module supports the same inputs/outputs as CFV-BASE and additionally supports multiple random input PSD's (including cross PSD's) with mean offsets. The module offers random response, S-N or E-N fatigue results that are generated from multiple correlated load inputs.
CFV-MULTI coupled with CAEfatigue RANDOM provides a powerful toolset to help the user understand output results for displacement, velocity, acceleration, force, stress, strain and fatigue life.
The CFS module provides an approach where the properties of the system are taken into account. This approach is a variation of the FDS approach. This module allows the user to transform a complicated multi-input and multi-event time history loading into a simplified load. This load is referred to as a surrogate load that will provide the same fatigue damage as for a system with a complex test time history.