When industrial parts are damaged, it can be very expensive and result in delays. Plus, it could leave a plant unsafe for workers. Scientists from Japan have now simulated fracture initiated in materials that share a specific physical characteristic and are widely used across domestic, industrial, a
nd scientific applications. Their work showed surprising results that may help prevent damage to industrial parts.
“Contrary to the common belief, we showed that the critical strain in disorder materials that corresponds with the onset of irreversible deformation is the same for both fatigue and monotonic fractures.” —Material fatigue is a significant concern in many industrial applications. It is especially crucial for machine or airplane parts that experience many cycles of stress, yet whose sudden failure could be catastrophic.
“Contrary to the common belief, we showed that the critical strain in disorder materials that corresponds with the onset of irreversible deformation is the same for both fatigue and monotonic fractures,” says co-author Yuji Kurotani. “This situation is like a crowded train,” says co-author Hajime Tanaka. “Dynamic and elastic asymmetries with respect to density changes can lead to a link between shear deformation and density fluctuations.”
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