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

Applied Sciences

Andrea Carpinteri¹  Sabrina Vantadori²  Camilla Ronchei² 

[1] Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy;;Department of Engineering &

关键词: control volume concept;    critical plane approach;    fatigue life assessment;    severely notched specimens;    strain energy density;   

DOI  :  10.3390/app9102163

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown