Fatigue and Durability in Mechanical Engineering
One of the most challenging tasks in the design and development process is the prediction of faults over time. Without the knowledge of how a structure might fail, it is more difficult to improve its safety performance. Physical tests for all possible failure scenarios can be prohibitively expensive.Â
The analysis of the durability of the finite element models are increasingly accepted in the design process. The analysis is no longer limited to fatigue life calculations: the output can now include safe work efforts, warranty claim curves and the effects of high temperatures, manufacturing processes, and assembly efforts.
Fatigue due to high stress (S-N) during the life cycle
Low effort fatigue (E-N) Strain-Life
Neuber and other methods of correction of plasticity.
Cracking initiation and growth using Paris.
Identification of "hot spot"
Analysis of deformations and damages.
Virtual voltage meter for the correlation test-analysis
Accumulation of damages using Palmgren-Miner.
Fatigue analysis of rotating systems
Fatigue by vibration by random charge.
Analysis of welding by points and seams.
Classic "welding classification" approach to fatigue
Predictions of material failure
Non-proportional multiaxial tensions.
Multiple simultaneous loads and multiple events allowed.
Analysis of safety factors.
