Results 21 to 30 of about 289 (156)

An in-depth investigation into the implications of alleviating banded microstructures on crack-tip opening displacement test of API 5LX60 linepipe steel plate

Journal of Materials Research and Technology, 2023
The present study seeks to fill the research gap regarding the correlation between crack-tip opening displacement (CTOD) and banded microstructures of high-strength low-alloy steel.
N. Amirjani, N. Barka, M. Eskandari, M. Hizombor   +3 more
doaj   +1 more source

Using 3D Digital Image Correlation (3D-DIC) to Measure CTOD in a Semi-Elliptical Surface Crack

Proceedings, 2018
The subsurface nature of Crack Tip Opening Displacement (CTOD) makes its direct measurement very difficult, if not impossible. During fracture toughness testing, CTOD is commonly calculated by applying a plastic hinge model using externally applied clip ...
Kaveh Samadian, Stijn Hertelé, Wim De Waele   +2 more
doaj   +1 more source

The effect of mechanical inhomogeneity in microzones of welded joints on CTOD fracture toughness of nuclear thick-walled steel

Nuclear Engineering and Technology, 2023
This study employs the microshear test method to examine the local mechanical properties of narrow-gap welded joints, revealing the mechanical inhomogeneity by evaluating the microshear strength, stress‒strain curves, and failure strain.
Long Tan, Songyang Li, Liangyin Zhao, Lulu Wang, Xiuxiu Zhao   +4 more
doaj   +1 more source

Modelling of Fracture Toughness of X80 Pipeline Steels in DTB Transition Region Involving the Effect of Temperature and Crack Growth

Metals, 2019
This work presents an investigation of the effects of temperature and crack growth on cleavage fracture toughness for weld thermal simulated X80 pipeline steels in the ductile-to-brittle transition (DBT) regime.
Jie Xu, Wei Song, Wenfeng Cheng, Lingyu Chu, Hanlin Gao, Pengpeng Li, Filippo Berto   +6 more
doaj   +1 more source

A study of the correlation between crack tip opening displacement (CTOD) and stretch zone width (SZW)

Scripta Metallurgica, 1986
Scripta Metallurgica 20 (1986) 1575-1580.
Department of Materials Science and Engineering University of Florida, Gainesville, Florida, USA ( host institution ), Hoelzer, D.T., Ali, J.A., Ebrahimi, F.   +3 more
openaire   +2 more sources

Numerical Analysis of the Influence of In-Plane Constraints on the Crack Tip Opening Displacement for SEN(B) Specimens Under Predominantly Plane Strain Conditions

International Journal of Applied Mechanics and Engineering, 2016
This paper presents a numerical analysis of the relationship between in-plane constraints and the crack tip opening displacement (CTOD) for single-edge notched bend (SEN(B)) specimens under predominantly plane strain conditions.
M. Graba
doaj   +1 more source

Multivariate Analysis to Relate CTOD Values with Material Properties in Steel Welded Joints for the Offshore Wind Power Industry

Energies, 2019
The increasingly mechanical requirements of offshore structures have established the relevance of fracture mechanics-based quality control in welded joints.
Álvaro Presno Vélez, Antonio Bernardo Sánchez, Marta Menéndez Fernández, Zulima Fernández Muñiz   +3 more
doaj   +1 more source

Fatigue Crack Growth from Notches: A Numerical Analysis

Applied Sciences, 2020
A numerical approach based on plastic crack tip opening displacement (CTOD) was followed to study fatigue crack growth (FCG) from notches. The identification of fundamental mechanisms was made considering notched and unnotched models, with and without ...
Micael Borges, Manuel Caldas, Fernando Antunes, Ricardo Branco, Pedro Prates   +4 more
doaj   +1 more source

Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique

Polymer Testing, 2021
This paper presents a comprehensive study on determining the interface adhesive strength of the polymer coating/substrate system to improve its durability.
Wenjie Qian, Huiying Zhang, Jianguo Zhu, Jian Li, Jian Zhang, Muyu Zhang   +5 more
doaj   +1 more source

Investigation of Hydrogen Embrittlement Susceptibility and Fracture Toughness Drop after in situ Hydrogen Cathodic Charging for an X65 Pipeline Steel

Micromachines, 2020
The present research focuses on the investigation of an in situ hydrogen charging effect during Crack Tip Opening Displacement testing (CTOD) on the fracture toughness properties of X65 pipeline steel.
Helen P. Kyriakopoulou, Panagiotis Karmiris-Obratański, Athanasios S. Tazedakis, Nikoalos M. Daniolos, Efthymios C. Dourdounis, Dimitrios E. Manolakos, Dimitrios Pantelis   +6 more
doaj   +1 more source