Fatigue testing is a specialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure. These tests are used either to generate fatigue life and crack growth data, identify critical locations or demonstrate the safety of a structure that may be susceptible to fatigue.

Fatigue Testing is a method used to evaluate how a material behaves under repeated stress and cyclic loading. It helps in determining the material’s endurance limit and fatigue life, identifying how long it can withstand fluctuating stresses without failure.

Fatigue testing is defined as the process of progressive localized permanent structural change occurring in a material subjected to conditions that produce fluctuating stresses and strains at some point or points and that may culminate in cracks or complete fracture after a sufficient number of fluctuations...

Fatigue is the condition whereby a material cracks or fails because of repeated (cyclic) stresses applied below the ultimate strength of the material. Fatigue failure often occurs quite suddenly with catastrophic result.

ASTM's fatigue and fracture standards provide the appropriate procedures for carrying out fatigue, fracture, and other related tests on specified materials.

Fatigue tests measure the resistance of materials to damage, strength loss and failure under the repeated application of load.

2017年8月1日 · Stress life testing is the most common type of fatigue testing and is designed to determine the safe or infinite life or fatigue strength of a material or component. The S-N or Wohler Diagram

2018年7月13日 · The fatigue test provides information about the strength of a material under continuously changing stress (dynamic load). The intensity of the stress increases slowly but steadily in the tensile, compression and flexural test until the load finally fractures the specimen.

In the fatigue test, material fatigue is evoked through a cyclic load with corresponding test frequency. This may involve a pulsating load test in tension or compression as well as an alternating load test with tension and compression components.

2019年10月1日 · This article aims to provide a brief overview of the most common types of fatigue tests and where each is commonly used. High cycle fatigue (HCF) This is the most common form of fatigue testing, where specimens are tested under repeated cyclic loading for many thousands or millions of cycles.