Results 41 to 50 of about 2,472 (201)

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

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

Sensitivity study of crack driving force predictions in heterogeneous welds using Vickers hardness maps [PDF]

, 2016
Weld flaws often require an engineering critical assessment (ECA) to judge on the necessity for weld repair. ECA is a fracture mechanics based prediction of the integrity of welds under operating conditions.
De Waele, Wim, Hertelé, Stijn, Naib, Sameera, Van Minnebruggen, Koen   +3 more
core  

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

A numerical analysis of the relation between CTOD and fatigue crack growth [PDF]

, 2016
El cálculo de la vida a fatiga durante la etapa de propagación de la grieta se suele realizar relacionando da/dN con ΔK. Sin embargo, la influencia que en estos análisis tiene el parámetro ΔK debe recaer en algún otro parámetro no lineal cercano al ...
Antunes, F.V., Camas, Daniel, Rodrigues, S.M.   +2 more
core  

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

Study of SENT specimens with a tilted notch to evaluate ductile tearing in spiral welded pipeline applications [PDF]

, 2015
There is an increasing interest for the use of spiral welded pipelines in strain based design applications. Environmentally imposed loads are able to plastically deform the pipelines, meaning that their structural response is of the utmost importance ...
De Waele, Wim, Deprez, Maxime, Hertelé, Stijn, Keereman, Frédéric, Van Minnebruggen, Koen   +4 more
core   +2 more sources

Characterisation of fatigue crack growth using the CJP model of crack tip fields or plastic CTOD

Procedia Structural Integrity, 2019
Abstract This paper provides an update on the current status of work that has been done to validate the CJP model of crack tip stresses and also summarises some findings from linked work that has used DIC to determine the range of plastic crack tip opening displacement as a correlator of fatigue crack growth rate.
James, M. N., Vasco-Olmo, J. M., Díaz, F. A., Antunes, F. V., Bing, Yang, Huang, Yongfang   +5 more
openaire   +2 more sources