Results 71 to 80 of about 1,905 (154)

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

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

The Effect of Material Strain Hardening on the Determination of CTOD R-Curves Using SENB Specimens [PDF]

, 2018
In ductile materials the fracture toughness is usually characterised by a tearing resistance curve, or R-curve, plotting the fracture toughness in terms of J or CTOD against crack extension.
Moore, Philippa L., Khor, Wee Liam, Wee Liam Khor, Philippa L. Moore   +3 more
core   +1 more source

Analysis of fracture toughness and Pop-in effect of weld metal for EH36 marine structural steel

Hanjie xuebao
To study the dispersion of low-temperature fracture toughness and the discontinuous “Pop-in” phenomenon of multi-layer and multi-pass welds using Chinese welding materials for marine structural steel, the causes of the Pop-in phenomenon in the weld ...
Jiangzhong HUANG, Lixia LI, Xinyu LU, Hongwei YANG, Lishun MA   +4 more
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

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

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   +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

Probabilistic Fracture Mechanics Analysis on the Scatter of Critical CTOD [PDF]

, 2014
Critical CTOD is widely used as a fracture toughness parameter for structural steels. Critical CTOD often has a scatter of more than one order of magnitude.
Shibanuma, K., Nakai, H., Yoshinari, H., Yoshizu, S., Aihara, S.   +4 more
core   +1 more source

Efecto del tamaño de probeta y orientación en la resistencia a la tracción y a la tenacidad a la fractura

Revista de Metalurgia, 2007
Este trabajo se dirigió a determinar el efecto de tamaño y orientación en las propiedades de tracción y tenacidad a la fractura mediante las curvas CTOD-R, utilizando probetas estándar y miniatura de una placa de acero estructural. El estudio requirió la
J. Terán, J. L. González, J. M. Hallen, M. Martínez   +3 more
doaj   +1 more source