Results 81 to 90 of about 5,797 (224)

The fatigue crack growth behavior of hydrogenated 9Cr‐1Mo steel: An experimental and numerical study

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 5, Page 1677-1695, May 2024.
Abstract This research investigates the fatigue crack evolution in P91 steel through experiments and extended finite element method (XFEM) simulation for as‐received and hydrogenated conditions. Hydrogen pre‐charging is performed using a constant current electrochemical method in 1 M sulfuric acid solution.
Mahesh Bharati, Rathin Maity, Akhilendra Singh, Surajit Kumar Paul   +3 more
wiley   +1 more source

Calibrating an adaptive cohesive zone model to simulate ductile crack propagation in structural steel under cyclic loading

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 2, Page 319-343, February 2024.
Abstract A procedure is outlined for calibrating a finite element model to simulate ductile cracking that employs a continuum damage criterion for ductile fracture initiation, termed the Stress Weighted Ductile Fracture Model, with an Adaptive Cohesive Zone method to simulate crack propagation.
Andy Ziccarelli, Amit Kanvinde, Gregory Deierlein   +2 more
wiley   +1 more source

Strain capacity of girth welded joints in HSAW pipes [PDF]

, 2017
The general aim of a recently finalized European project, i.e. EU RFCS SBD-Spipe, is to generate specific know-how concerning the development and possible use of spirally welded pipes for demanding applications.
De Waele, Wim, Hertelé, Stijn, Van Minnebruggen, Koen   +2 more
core   +2 more sources

Crack Propagation Phenomenon in Gangue Concrete Using the Digital Image Correlation (DIC) Method

Advances in Materials Science and Engineering, Volume 2024, Issue 1, 2024.
In order to study the mode I crack propagation mechanism of coal gangue concrete with different contents, the digital image correlation (DIC) method was used to carry out the three‐point bending fracture tests on coal gangue concrete with different contents.
Cheng Pan, Zhiming Zheng, Yu Yang, Shengwen Tang   +3 more
wiley   +1 more source

Experimental Research on the Low-Cycle Fatigue Crack Growth Rate for a Stiffened Plate of EH36 Steel for Use in Ship Structures

Journal of Marine Science and Engineering
This paper presents a straightforward approach for determining the low-cycle fatigue (LCF) crack propagation rate in stiffened plate structures containing cracks.
Qin Dong, Geng Xu, Wei Chen
doaj   +1 more source

Diet quality and carotid atherosclerosis in intermediate cardiovascular risk individuals

Nutrition Journal, 2017
Background Diet quality indices address the diet’s complexity and are calculated by a combination of foods and/or nutrients which together represent a dietary pattern.
Jose I. Recio-Rodriguez, Irene A. Garcia-Yu, Rosario Alonso-Dominguez, José A. Maderuelo-Fernandez, Maria C. Patino-Alonso, Cristina Agudo-Conde, Natalia Sanchez-Aguadero, Rafel Ramos, Ruth Marti, Emiliano Rodriguez-Sanchez, Manuel A. Gómez-Marcos, Luis Garcia-Ortiz   +11 more
doaj   +1 more source

Finite-element analyses and fracture simulation in thin-sheet aluminum alloy [PDF]

A two-dimensional, elastic-plastic finite-element analysis was used with a critical crack-tip-opening angle (CTOA) fracture criterion to model stable crack growth in thin-sheet 2024-T3 aluminum alloy under monotonic loading after precracking at different
Bigelow, C. A., Dawicke, D. S., Newman, J. C., Jr.   +2 more
core   +1 more source

Effect of welding conditions and martensite-austenite (MA) constituents on CTOD in 690 MPa high-strength heavy plate steel

Journal of Materials Research and Technology
This article analyzes the influence of martensite-austenite (MA) constituents on the crack tip opening displacement (CTOD) values of high-strength heavy plates with a thickness of 210 mm under varying welding conditions.
Hengkun Li, Donghao Jin, Xiaohang Jia, Huibin Wu, Linheng Chen   +4 more
doaj   +1 more source

Characteristics of Microstructure and Fracture Toughness According to the Groove Shape of Submerged Arc Welding

Metals
This study investigates the effects of heat input on the microstructure and fracture toughness of SAW (Submerged Arc Welding) joints with K-groove and X-groove weld preparations using S460NL steel.
Yong-Taek Shin, Chang-Ju Jung, Seong-Han Bae, Gyubaek An, Myungrak Son, Young-Il Park   +5 more
doaj   +1 more source

Influence and evaluation of constraint on fracture toughness in pipeline research [PDF]

, 2012
Accessing nowadays fossil fuel reserves requires a strain-based design approach. Within such design, the ductile tearing resistance is a key parameter in assessing the defect tolerance. To determine this tearing resistance, full scale (pressurized) tests
De Waele, Wim, Denys, Rudi, Hertelé, Stijn, Verstraete, Matthias   +3 more
core