Failure Analysis (Durability and Fatigue)

Component failures are often not due to a single event, but due to accumulative damage caused by a series of events.




Maintaining Strain Levels | Failure Analysis Methodology

The typical fatigue process is to maintain stress / strain levels below the allowable for the required number of cycles.

Multiple loads often occur and will have a different cycle requirement. Ansys Fatigue, or the more advanced nCODE can predict the component life. An alternative approach is to understand that a crack exists in the component. The crack is analyzed to determine whether it will propagate, and if so, at what rate.

FEA Failure Analysis Methods | Practical Application

Common FEA failure method requests from business partners (including, but not limited to):

Nuclear Reactor System Head Crack Propagation

Performed fracture mechanics simulations to propagate crack in a reactor system flat header subject to thermal and pressure cycling.

Power Generation Support Bracket Fatigue Evaluation

Investigated low and high cycle fatigue on silencer baffle support bracket for thermal and operational loading.

Oil Sands Conveyor Link Life Investigation

Analyzed large conveyor chain link for comparative fatigue loading.

Aerospace V-Coupling Fatigue

Evaluation of circular V-coupling (clamp) for preload, pressure and thermal loading.

Airplane Landing Gear

Determination of maintenance times for landing gear due to extension / retraction.

Gears & Bearings

Spalling and pitting (gears and bearings) are surface fatigue phenomena.

Mold Die

Fatigue analysis to determine early life failure.

Aerial Work Platform

Extensive weld fatigue evaluation, and lifecycle analysis.


Solder joint reliability analysis for heavy machinery, aerospace, and construction.






Failure Prevention via Advanced Measurement & Testing

Advanced Vibration Measurement and Analysis

SimuTech Group’s expertise in advanced vibration measurements and services has gained recognition across North America due to our quality of analysis and commitment to precision, allowing businesses to approach their engineering problems with confidence.

Advanced techniques for testing includes modal testing (rap testing or bump testing), operating deflection shape (ODS) analysis, strain gage measurements, spectrum (signature) analysis, order tracking, joint time frequency (waterfall) analysis, demodulation and finite element analysis (FEA).

These capabilities plus state-of-the-art equipment, enable SimuTech to diagnose the root cause of noise and vibration problems, as well as suggest alternative materials or chemicals to optimize your current processes.



Quality Solutions at Competitive Pricing

Based on a clear understanding of the problem, SimuTech Group provides practical solutions including specification of isolation systems, tuned mass dampers, surface damping treatments, shaft balance and alignment procedures, excitation source control, repair procedures, natural frequency detuning, and active vibration control.

SimuTech Group’s vibration diagnostics and troubleshooting services offer advanced techniques at competitive prices with an emphasis on communication and customer service.