ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
One of the steps taken to enhance accurate fatigue life estimations and material modeling is the development of an electrohydraulic, servo-controlled feedback fatigue apparatus that has been joined to a scanning electron microscope. This apparatus allows in situ observations of cyclically loaded specimens undergoing fatigue deformation. Using this apparatus, recordings can be made of the events related to the surface response of materials under different loading conditions, showing how microstructural features influence crack nucleation and propagation behavior. With the development of this apparatus, existing mathematical models describing the fatigue process can be enhanced or improved, and more accurate fatigue life estimation methods can be obtained. The apparatus developed is described herein, as well as a few selected results.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1139679
