Results 31 to 40 of about 1,592 (205)
Comparison of methods to determine CTOD for SENB specimens in different strain hardening steels
, 2017 Methods for determining crack tip opening displacement (CTOD) given in national and international standards are compared for steels with a range of strain hardening characteristics.
W.L. Khor +11 more
core +1 more source
Use of Circumferentially Cracked Bar sample for CTOD fracture toughness determination in the upper shelf regime [PDF]
Fracture and Structural Integrity, 2014 In this work, the use of circumferentially cracked bar (CCB) sample to determine material fracture toughness in the upper shelf regime for carbon steels has been investigated.
D. Gentile +4 more
doaj +2 more sources
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 +3 more
doaj +1 more source
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 +6 more
doaj +1 more source
A Comparison of CMOD-Based CTOD and <i>J</i>-Conversion CTOD in Shallow Crack Specimens
, 2010 The ratio of J-conversion CTOD to CMOD-based CTOD was experimentally evaluated and analytically estimated in shallow crack specimens. It was demonstrated that the low strain hardening exponent in the Ramberg-Osgood relation reduced the CTOD ratio. A CTOD
Takehiro Inoue +2 more
core +1 more source
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
Xiao‐Wei Zou +3 more
wiley +1 more source
A Mechanical Model For The Quantification Of The Effect Of Laser Quenching On Ctod In Steels
, 2009 The technology of laser quenching is widely used to improve the surface properties of steels in surface engineering. Generally, laser quenching of steels can lead to two important results. One is the generation of residual stress in the surface layer. In
Yang BQ +5 more
core +1 more source
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 +3 more
wiley +1 more source
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
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 +4 more
doaj +1 more source