Results 31 to 40 of about 232 (144)

Effect of yield stress on fatigue crack growth

Fracture and Structural Integrity, 2019
Fatigue crack growth (FCG) depends on loading, geometry and also material properties. Since FCG is supposedly linked to crack tip plastic deformation, material s yield stress, Y0, is an important parameter.
M.F. Borges, F.V. Antunes, P. Prates, R. Branco, M.C. Oliveira   +4 more
doaj   +3 more sources

Influence of the mesh size on plastic CTOD

, 2021
The Crack Tip Opening Displacement (CTOD) is an elastic-plastic fracture mechanics parameter usually employed as a measurement of fracture toughness and to explain the fatigue crack growth. This parameter can be decomposed on two different components: the elastic and plastic one.
Sanchez-Mancera, J., Camas, D., Prates, P. A., Antunes, F. V.   +3 more
openaire   +2 more sources

Elastoplastic analysis of cracked Aluminum plates with a hybrid repair technique using the bonded composite patch and drilling hole in opening mode I

Fracture and Structural Integrity, 2020
The objective of this study is to analyze the performance of composite bonding repair, hole drilling and the combination of the two techniques (hybrid repairs) by tensile tests and to show the interest of a hybrid repair versus to other processes.
Wahiba Nessrine Bouzitouna, Wahid Oudad, Mohamed Belhamiani, Djamel Eddine Belhadri, Leila Zouambi   +4 more
doaj   +3 more sources

A modified model for calculating crack tip opening displacement (CTOD) considering fracture process zone (FPZ) in rock

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
A new CTOD calculation method is investigated in this study, considering the FPZ and the effective Young’s modulus. The calculated CTOD values from four theoretical models are compared with the measured CTOD values from the three-point beam experiments ...
Yang Qiao, Zong-Xian Zhang, Jun Zhou
doaj   +1 more source

Fatigue Crack Growth Behavior due to the Localized Compressive Deformation on Structural Steel

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1597-1609, May 2026.
ABSTRACT The localized compressive deformation (LCD) process was used to analyze the fatigue crack growth behavior of a high‐strength low‐alloy structural steel. Eccentrically loaded single‐edge crack tension specimens (ESE(T)) in accordance with standard ASTM E647 were precracked at a crack length of about 4 mm from the machined notch by applying a ...
Alejandro López, Ricardo Rafael Ambriz, Christian Jesús García, Cesar Mendoza, David Jaramillo   +4 more
wiley   +1 more source

Influence of Surface Flaw Interaction on Failure Assessment Diagram in the Framework of Fitness‐for‐Service Procedures

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1877-1894, May 2026.
ABSTRACT This study investigates the influence of closely spaced surface‐flaw interaction on failure assessment diagrams (FADs) used in fitness‐for‐service evaluations, addressing the conservatism introduced when standards such as BS 7910 and API 579 recharacterize interacting flaws as a single bounding crack.
Gabriel de Castro Coêlho, Júlio Feitosa da Silva Neto, Antonio Almeida Silva, Marco Antonio dos Santos   +3 more
wiley   +1 more source

Design and Development of an Accessible Clip Gauge Extensometer for CMOD Measurement in Fracture Mechanics

Engineering Reports, Volume 8, Issue 2, February 2026.
A low‐cost clip gauge extensometer for crack mouth opening displacement was developed from accessible procedures and materials. Accuracy and repeatability comparable to commercial devices were demonstrated in calibration and fracture tests, enabling reliable measurement in CT specimens for resource‐constrained laboratories.
Isaías Chamorro‐Cruz, Alessandra Gallegos‐Sánchez, Hilario Hernández‐Moreno, Esteban Antunez‐Valencia, Sergio Guillermo Torres‐Cedillo, Gabriella Piccinelli Bocchi, Jorge Iván Reyes‐Guzmán, José Alberto Picaso‐Martínez, Jacinto Cortés‐Pérez   +8 more
wiley   +1 more source

Prediction and Experimental Validation of the Influence of T‐Stress on I–II Mixed‐Mode Fracture in Rock

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Traditional fracture criteria only consider the singular terms in the Williams expansion and neglect higher‐order term coefficients, resulting in significant discrepancies between predicted and measured values. To advance the understanding of rock fracture mechanisms, this study introduces a generalized maximum tangential stress (GMTS) criterion by ...
Yongfeng Liu, Zhengxing Yu, Yongming Yin, Jinglin Wen, Arnab Biswas   +4 more
wiley   +1 more source

Influence of Notch Geometry and Temperature on the Mechanical Properties of Al‐Mg Alloy Using Molecular Dynamics Simulations

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 11, Page 4769-4783, November 2025.
ABSTRACT At the near‐threshold regime, small irregularities on the surface can interact with the microstructure and affect the nucleation and propagation of cracks. Molecular dynamics is an effective methodology to investigate the damage evolution at this scale, and three types of defects, namely, triangular, rectangular, and crack, are examined.
Francesco Gucci, Artur Mariano de Sousa Malafaia, James Brighton, Marzio Grasso   +3 more
wiley   +1 more source

Fracture Assessment of Weld Joints of High-Strength Steel in Pre-Strained Condition

Applied Sciences, 2019
Unstable fractures tend to occur after ductile crack initiation or propagation. In most collapsed steel structures, a maximum 15% pre-strain was recorded, at the steel structural connections, during the great earthquake of 1995, in Japan. Almost-unstable
Gyubaek An, Jeongung Park, Mituru Ohata, Fumiyoshi Minami   +3 more
doaj   +1 more source