Results 31 to 40 of about 518 (167)

Numerical evaluation of crack tip opening displacements - 2D and 3D applications

, 2022
The numerical tools to compute elastic-plastic crack tip loading parameters J and CTOD are well established for arbitrary geometry and loading situations also including temperature gradients and stable crack propagation.
Hollstein, T., Schmitt, W.
core  

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

Hierarchical Twin Networks Enable Exceptional Strength and Fracture Toughness in Titanium

Advanced Science, EarlyView.
A commercial‐purity titanium with hierarchical ultrafine twin structures delivers an exceptional combination of fracture toughness (KJIc) of 187 MPa·m1/2 and specific yield strength of 140 MPa·cm3·g−1, in which pre‐engineered high‐density twin boundaries stimulate massive and dislocations to blunt crack tip.
Xiao‐Wei Zou, Ting Zhu, En Ma, Wei‐Zhong Han   +3 more
wiley   +1 more source

Investigating Crack Resistance Behavior of Polypropylene Using J integral, J‐R Curve and Fractographic Analysis

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT In this study, the fracture response of polypropylene (PP) was assessed using J‐integral evaluation, J‐R curve construction, and fractography examination. J‐R and load–displacement curves were analyzed to determine critical loads and estimate J‐integral values based on standards established for polymer fracture testing, which led to the ...
N. Choupani, M. Shameli, E. Haddadi, P. Aydiner   +3 more
wiley   +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

Transformation of BS7448-CTOD to ASTM E1290-CTOD

, 2010
Experimental and analytical investigations into crack tip opening displacement (CTOD) were conducted to demonstrate the relationship between BS7448-CTOD and ASTM E1290-CTOD.
Takehiro Inoue, Yoichi Kayamori, Tetsuya Tagawa   +2 more
core   +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

A Numerical Study of the Effect of Isotropic Hardening Parameters on Mode I Fatigue Crack Growth

Metals, 2020
The consideration of plastic crack tip opening displacement (CTOD, δp), as a crack driving force has given us the opportunity to predict fatigue crack growth (FCG) rate numerically, and, therefore, to develop parametric studies focused on the effect
M. F. Borges, F. V. Antunes, P. A. Prates, R. Branco   +3 more
doaj   +1 more source