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Toribio, JAutor (correspondencia)Sanchezgalvez, VAutor o CoautorAstiz, MaAutor o CoautorSTRESS INTENSITY FACTOR SOLUTIONS FOR A CRACKED BOLT UNDER TENSION, BENDING AND RESIDUAL-STRESS LOADING
Publicado en:Engineering Fracture Mechanics. 39 (2): 359-371 - 1991-01-01 39(2), DOI: 10.1016/0013-7944(91)90050-B
Autores: TORIBIO, J; SANCHEZGALVEZ, V; ASTIZ, MA; CAMPOS, JM;
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In this paper the stress intensity factor (K) for a cracked bolt subjected to tension loading, bending moment and residual stress distribution is computed. The calculation is carried out by using the Finite Element Method. Quarter-point singular isoparametric elements are employed along the crack line. The stress intensity factor is obtained by using an energetic technique: the Stiffness Derivative Method, based on the computation of the energy release rate upon a virtual crack extension. Two modifications are introduced into the computation in order to improve the accuracy of the results: the displacement not only of the main node, but also of the quarter-point nodes located in the normal plane and the adjacent nodes placed in the crack line, avoiding both the change of the singularity and the crack curving. Results for various crack shapes and crack depths are presented in different points along the crack front. A second-order interpolation of the numerical results is performed, to provide analytical expressions to be used in fatigue life prediction. The K-values corresponding to residual stress distribution are very low, and their influence is negligible.
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2025-07-15:
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Análisis de liderazgo de los autores institucionales
Existe un liderazgo significativo ya que algunos de los autores pertenecientes a la institución aparecen como primer o último firmante, se puede apreciar en el detalle: Primer Autor (TORIBIO PEREZ, JOSE IGNACIO) y Último Autor (Campos, JM).
el autor responsable de establecer las labores de correspondencia ha sido TORIBIO PEREZ, JOSE IGNACIO.