Questions tagged [fatigue]
The fatigue tag has no usage guidance.
9
questions with no upvoted or accepted answers
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Do I use alternating, mean or max/min stresses for Miner's rule?
I am trying to work out fatigue life of a part using Miner's rule, however I am having some trouble working out which stress values to use. I have seen some examples but there seems no rhyme or reason ...
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Abaqus vcct fatigue consistently underpredicts disbond growth rate
I'm modelling a fatigue disbond using abaqus. I've understood the disbond growth rate is equal to:
$$\dfrac{\partial a}{\partial N} = c_3 \Delta G^{c_4}$$
I've set up an analysis with MMB specimen. I'...
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Would Amorphous Diamond-like Carbon coatings have a fatigue cycle limit?
I'm aware that polymers like most plastics can go through stress cycles indefinitely as long as the covalent bonds are not ruptured.
On the other hand, I hear that even metals like steel and ...
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Stress Amplitude Calculation in Haigh Diagram beside Limit Line
I want to use the Haigh diagram for mean stress and stress amplitude correction using SODERBERG limit line. All I can find is the relation between stress amplitude and mean stress described at the ...
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Traction loads in cracks - clarification
I need small help with interpretation of traction loads. I cannot find any explanation what does it really mean according to fatigue crack growth. Should I interpret that like any loads applied to ...
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Costs of fatigue damage - need some statistical data / USA, Europe, Asia
I am looking for (pretty current/actual) statistical data related with Fatigue damage in machines, Annual fatigue costs in industry (for example with refference to Gross Domestic Product), time ...
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Grain size and fatigue performance correlation for AMS 5662 Inconel 718
I am trying to do a literature review on the correlation between average grain size and fatigue performance of AMS 5662 (solution annealed condition) Inconel 718. The Special Materials Corporation ...
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Fatigue modelling in Abaqus
My problem:
I'm trying to model fatigue disbond growth in Abaqus. So far I've tried this using multiple approaches with mixed results.
What I've tried:
I first started with modelling a static general ...
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Long term deflection
I've been working with a team of 'designers' that are highly concerned over a potential failure mode of ABS plastic. Their theory is that under a static load well under the yield point of the material ...
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