Results 71 to 80 of about 2,541 (197)

Computing the stress intensity factor range for fatigue crack growth testing at 20 kHz

Engineering Reports, Volume 6, Issue 6, June 2024.
A comparative study on the computation of the SIF at 20 kHz load frequency. Results from different simulation procedures are presented and discussed. Abstract Inertia and damping influence the values of the stress intensity factors (SIFs) at high‐frequency loading and they must be included in computations.
Mohamed Sadek, Jens Bergström, Nils Hallbäck   +2 more
wiley   +1 more source

Effect of cryogenic conditions on the critical crack tip opening displacement for the laminated material AA2519-AA1050-Ti6Al4V-T62

Journal of Materials Research and Technology
In the case of operating technical objects in conditions that accelerate material wear, it is necessary to adequately protect the object from the aggressive working environment.
Maciej Kotyk
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

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

Numerical Investigation of Strength Mismatch Effect on Ductile Crack Growth Resistance in Welding Pipe

Applied Sciences, 2020
The effect of strength mismatch (ratio between the yield stress of weld metal and base metal, My) on the ductile crack growth resistance of welding pipe was numerically analyzed.
Lin Su, Jie Xu, Wei Song, Lingyu Chu, Hanlin Gao, Pengpeng Li, Filippo Berto   +6 more
doaj   +1 more source

Numerical Strip-Yield Calculation of CTOD and CTOA [PDF]

A recently developed numerical method based on the strip yield analysis approach was used to calculate the Crack Tip Opening Displacement (CTOD) and Crack Tip Opening Angle (CTOA) for a number of complex crack configurations of practical interest.
Beek, Joachim, Forman, Royce, Shivakumar, V.   +2 more
core   +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

FPZ evolution of mixed mode fracture in concrete: Experimental and numerical [PDF]

, 2017
Digital image correlation (DIC) technique is applied to study the evolution of fracture process zone (FPZ) of mixed mode fracture in concrete. By testing a series of beams of various sizes under four-point shearing, the opening and sliding displacements ...
Dong, L, Dong, W, Kastiukas, G, Wu, Z, Zhou, X   +4 more
core   +1 more source

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

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