Verification of stress-intensity factor and compliance relations for a single edge notch specimen under tension-compression loading

Narasimhachary, Santosh B.; Gravett, Phillip W.; Shinde, Sachin; Newman, James C.

doi:10.1016/j.engfracmech.2019.106493

Cited by 6 publications

(2 citation statements)

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“…In TMF test, the utilization of induction coil for temperature heating to achieve a rapid temperature variation rate makes it difficult to measure the crack length because the specimen is surrounded by the coil. The most common crack growth measurement method is to take interval photos of the crack growth area through a charge coupled device (CCD) camera, by which the crack length data can be obtained directly 18–22 . However, the coil will block the lens field of view.…”

Section: Introductionmentioning

confidence: 99%

“…The most common crack growth measurement method is to take interval photos of the crack growth area through a charge coupled device (CCD) camera, by which the crack length data can be obtained directly. [18][19][20][21][22] However, the coil will block the lens field of view. Even if the crack propagation area is completely exposed by customizing special coils, the CCD camera must keep a sufficient distance to prevent the interfere of electromagnetic signals.…”

Section: Introductionmentioning

confidence: 99%

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Thermomechanical and isothermal fatigue crack propagation testing method for 316LN austenitic stainless steel

Zheng

Zhao

et al. 2022

Fatigue Fract Eng Mat Struct

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Investigating fatigue crack growth behavior of materials is crucial to the life design and safety evaluation of engineering structures. During the practical service condition, the temperature keeps changing, which cannot be studied by the traditional fatigue crack growth test method at constant temperature. In this study, we focus on constructing a new thermomechanical fatigue (TMF) crack propagation testing method, developing a thermal deformation compensation method, and proposing an equivalent compliance method suitable for variable temperature conditions based on ASTM E647 standard to measure the crack length. Furthermore, the load-and strain-controlled TMF tests under different phase angles are carried out to prove the validity of the new method.

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Section: Introductionmentioning

confidence: 99%