RT info:eu-repo/semantics/article
T1 Closed-form equations for the calculation of stress intensity factors for embedded cracks in round bars subjected to tensile load
A1 Alegre Calderón, Jesús Manuel
A1 Cuesta Segura, Isidoro Iván
A1 Díaz Portugal, Andrés
K1 Stress intensity factor
K1 Embedded elliptical cracks
K1 Fatigue
K1 Ingeniería civil
K1 Civil engineering
AB Fatigue crack propagation initiated from internal defects is a typical mechanism observed in high cycle fatigue(HCF) and very high cycle fatigue (VHCF) of cylindrical tensile specimens subjected to uniaxial cyclic loads. Tostudy the fatigue crack propagation of these embedded cracks by means of a fracture mechanics approach, solutions for the Stress Intensity Factor (SIF) for different crack configurations are needed. In this paper, a set ofclosed-form equations for the calculation of the SIF of embedded cracks in round bars subjected to tensile load ispresented. Two sets of solutions are provided, which allow for different levels of approach to be considered. Thefirst solution provides the SIF for the vertex points of an internal elliptical crack as a function of three dimensionless parameters related to crack size, crack position and crack aspect ratio. The second solution is asimplification for eccentric circular cracks located at any position of the cross section. The methodologynecessary for the application to the study of fatigue crack propagation is also presented, and a comparison withthose obtained from experimental tests is included, which exhibits a very good capacity for prediction.
PB Elsevier
SN 0167-8442
YR 2022
FD 2022-10
LK http://hdl.handle.net/10259/7456
UL http://hdl.handle.net/10259/7456
LA eng
NO The authors gratefully acknowledge financial support from the Junta de Castilla y Leon (Spain) through grant BU-002-P20, co-financed by FEDER funds.
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024