Fatigue and Fracture Mechanics Simulation Services

Component failures are often not due to a single event, but due to accumulated damage caused by a cyclic loading history or a series of loading histories.

Fatigue, Damage Accumulation and Fracture Analysis

Our FEA consulting engineers have hundreds of years of combined experience in fatigue analysis and fracture mechanics. We can help you predict the expected life of your designs, mean time to failure, and provide insight into whether existing cracks will propagate under continued service. Whether you are designing a new product and need to evaluate expected life or you are trying to understand field failures and reduce warranty costs we can help. Our expertise includes:

High cycle fatigue
Low cycle fatigue
Fatigue based on dynamic loading (harmonic, random and shock)
Thermo-mechanical fatigue
ASME pressure vessel fatigue
Damage accumulation for complex load histories
Prediction of crack initiation
Prediction of crack propagation

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Fatigue and Fracture Analysis Practical Applications

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.

BGA & LGA

Solder joint reliability analysis for electronics equipment.

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Fatigue Failure Prevention via Correlation of Simulation to Testing

Strain Gauge and Vibration Measurement and Analysis

SimuTech Group has expertise in vibration and strain measurement. Many of our customers who come to us for fatigue analysis or life prediction of their components and systems don’t fully understand the loading and constraints that their hardware experiences in the field.

SimuTech Group’s test engineering team can instrument your hardware with accelerometers and/or strain gauges and measure the response to real world loading. The test data can then be correlated to FEA models. Our simulation consulting engineers work closely with our test engineers and often use these correlated FEA models to accurately predict fatigue life and damage accumulation under the customer’s correlated operating conditions.