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Open AccessArticle

Energy Concepts and Critical Plane for Fatigue Assessment of Ti-6Al-4V Notched Specimens

Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy
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Appl. Sci. 2019, 9(10), 2163; https://doi.org/10.3390/app9102163
Received: 30 April 2019 / Revised: 22 May 2019 / Accepted: 22 May 2019 / Published: 27 May 2019
(This article belongs to the Special Issue Fracture and Fatigue Assessments of Structural Components)
In the present paper, the fatigue life assessment of notched structural components is performed by applying a critical plane-based multiaxial fatigue criterion. Such a criterion is formulated by using the control volume concept related to the strain energy density criterion. The verification point is assumed to be at a given distance from the notch tip. Such a distance is taken as a function of the control volume radii around the notch tip under both Mode I and Mode III loading. The accuracy of the present criterion is evaluated through experimental data available in the literature, concerning titanium alloy notched specimens under uniaxial and multiaxial fatigue loading. View Full-Text
Keywords: control volume concept; critical plane approach; fatigue life assessment; severely notched specimens; strain energy density control volume concept; critical plane approach; fatigue life assessment; severely notched specimens; strain energy density
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Ronchei, C.; Carpinteri, A.; Vantadori, S. Energy Concepts and Critical Plane for Fatigue Assessment of Ti-6Al-4V Notched Specimens. Appl. Sci. 2019, 9, 2163.

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