metal fatigue


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metal fatigue

A weakening in the strength of a metal caused by repeated or fluctuating stresses. See fatigue (i).
References in periodicals archive ?
Mastication can cause a repeated loading, leading to degradation of the implant materials and metal fatigue," she continued.
Operating limits for commercial aircraft have been proposed by regulators in the US in an attempt to avert issues caused by age-related metal fatigue cracks.
Remember, an unbalanced tail rotor can cause metal fatigue and can crack the tail rotor gear box mounts.
An initial report into the crash published today by the Air Accidents Investigation Branch revealed that one of the struts supporting the right wing had metal fatigue and cracked in mid-air, causing the wing to fold.
Not only are tiles difficult to repair, but the absence of any material covering up the skin of a space vehicle would make it easier for engineers to spot faults, such as underlying cracks or metal fatigue.
Columbia suffered metal fatigue, in this case, deadly.
Yesterday Downing Street said it and the country had 'Mittal-fatigue' - a pun on metal fatigue, but also a suggestion that the story was essentially boring and pointless.
When drill stem is not kept within the limits of its torque range, thrust and pullback limitations, and bending radius, metal fatigue may occur resulting in premature and costly failure.
Refurbishing twin screws by metal-spray deposition can avoid problems caused by welding such as thermal stress and metal fatigue, which can damage the underlying chrome layer, says Krauss-Maffei Kunststofftechnik GmbH in Munich, Germany.
There was a fault in the hare rail due to metal fatigue, which was temporarily repaired," said spokesman for ROTA, Jack Wilson, "but shortly after the hurdles race the trolley hit the hare rail, which caused damage to the cable.
Japan Atomic Power is looking into the possibility that the cracks were caused by heat fatigue, a type of metal fatigue resulting from constant expansion and contraction due to temperature changes.
Example: Weekly physical inspection of all patient lift equipment includes observation of all friction and wear points and possible metal fatigue, as well as plans for continued safe operation when the equipment is pulled out of service for immediate repair.