Physical testing for durability is very costly and time-consuming. Image 2: Durability simulation on dental implant solved with SIMULIA fe-safe technologyīecause of the prevalence of failures caused by fatigue and the substantial improvement of computational solutions, companies are moving towards durability simulation to better understand and predict fatigue occurrences during a component’s or product’s lifetime. – Consumer Products: Seals, fans, connectors, wires, valves, bicycle pedals, and exercise equipment. – Electronics: Solder, lead wires, PCB, actuators, electronic racks, and housing assemblies. – Energy and materials: Pipes, pressure vessel, drilling equipment, control and safety valves, welds, fans, turbines, wind turbines, offshore platforms, and gears. – Life sciences: Stents, prosthetics, dental, hip and knee implants. – Industrial equipment: Rotating machinery, bolts, gears, belts, valves, seals, pipes, and tubes. Image 1: Catastrophic events due to fatigue.Įxamples of fatigue failure can be found in products and components across many industries: While these failures are catastrophic, we see the results of fatigue throughout multiple industries.
Think of the recent commercial airplane engine fire due to metal fatigue in the fan blade. We see the results of fatigue failure in the news. It is a difficult question to figure out by hand, which makes it an ideal task for computational simulation.
Up to 90% of all in-service mechanical failures are due to fatigue when repeated loading and unloading weakens the components over time by cracks propagating through the material, even when the induced stresses are considerably less than the material’s stress limit.Ī component’s fatigue life is affected by multiple factors such as material, geometry, stress range, load frequency, manufacturing process, and atmospheric conditions. However, this approach neglects a pervasive failure mode that is readily calculated: metal fatigue. Usually, when companies think about using simulation, they think about increasing product strength and stiffness while reducing weight.
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