Problem
Fatigue in materials
Nature:
Fatigue in materials is the progressive change of structure and mechanical properties produced by frequent loading and unloading of the material. Such repetition of stress cycles leads to progressive deterioration of the cohesion of the material, particularly in the case of metals. This deterioration is the cause of a high proportion of failure in structures and machine parts. Such failures can cause loss of life, as in the case of aircraft accidents or the collapse of bridges.
Incidence:
It is estimated that material fatigue accounts for 90% of the failure of parts or structures in service.
Broader Problems:
Failure of materialsLoss of capacity with age Narrower Problems:
Concrete fatigueDeterioration of stored documents and archivesDeterioration of the physical condition of art objects Related Problems:
Fatigue Aggravates:
Wear Strategies:
Improving materials longevity Values:
Fatigue References:
Puskár, Anton and Golovin, Stanislav A: Fatigue in Materials: cumulative damage processesTaske, C E, et al: Thermal and Environmental Effects in Fatigue: research-design interfaceAmerican Society for Testing and Materials: Effects of Environment and Complex Load History on Fatigue Life - STP 462Cannon, D F; Kalker, J J and Orringer, O: Rail Quality and Maintenance for Modern Railway Operation Subject(s):
Fundamental Sciences → MaterialTechnology → Metallurgy
Problem Type:
D: Detailed problems Date of last update
16.06.2019 – 22:08 CEST