Progressive Failure Optimization (PFO)
An important tool that maximizes the structural performance of a
designed composite structure by directing the design towards minimization of
its service life damage. The resulting design will have an increased durability
and damage tolerance.
Minimized objective function is the overall material damage.
Graphically compares the optimized results with the initial
Requires the selection of manufacturing design variables and
Recalculate the stress distribution at the micro level based on
Improves robustness of aerospace and automotive composite parts
Reduces experimental efforts by computing the optimized design
parameters that produce the best performance.
The optimized design is characterized by the: 1) delay of damage
initiation in the critical regions of a structure; and 2) internal stress
redistribution that leads to stress reduction in the damaged areas at the cost
of undamaged areas.