Results 71 to 80 of about 34,504 (250)

Transient Analysis of Dynamic Crack Propagation With Boundary Effect [PDF]

Journal of Applied Mechanics, 1995
In this study, a dynamic antiplane crack propagation with constant velocity in a configuration with boundary is investigated in detail. The reflected cylindrical waves which are generated from the free boundary will interact with the propagating crack and make the problem extremely difficult to analyze. A useful fundamental solution is proposed in this
Ma, Chien-Ching, Ing, Yi-Shyong
openaire   +2 more sources

Thermal effect of plastic dissipation at the crack tip on the stress intensity factor under cyclic loading [PDF]

, 2011
The authors acknowledge Arts et Métiers ParisTech and Fondation Arts et Métiers for the financial support of Paul C. Paris’ stay at LAMEFIP in 2009. The encouragement of Prof. Ivan Iordanoff, Director of LAMEFIP, is acknowledged with thanks.
PARIS, Paul C., T. Palin-Luc, PARIS, Paul Croce, PALIN-LUC, Thierry, RANC, Nicolas, P.C. Paris, PALIN LUC, Thierry, N. Ranc, Paris, Paul   +8 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Numerical Analysis of Crack Initiation and Propagation in an Aluminium Sample

Technical Transactions, 2018
This paper reports an analysis of simulated crack propagation in an aluminium sample depending on the direction of external loads. The objective of the study was to perform a numerical analysis of crack propagation as well as to determine regions which ...
Różyło Patryk
doaj   +1 more source

Fail-safe design of integral metallic aircraft structures reinforced by bonded crack retarders [PDF]

, 2009
This paper presents an investigation on the effectiveness of crack growth retarders bonded to integral metallic structures. The study was performed by both numerical modelling and experimental tests.
Irving, Phil E., Figueroa-Gordon, D, Allegri, Giuliano, Irving, PE, Figueroa-Gordon, Douglas J., Allegri, G, Boscolo, Marco, Zhang, X, Zhang, Xiang, Boscolo, M   +9 more
core   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Analysis on Crack Propagation in Subsea Blowout Preventer Based on XFEM

Shiyou jixie, 2017
Initial crack defects on BOP shell could seriously affect its safety performance and reduce its service life.Thus, it is necessary to analysis the BOP shell crack propagation rules.
Zhang Shichao, Zhang Xin, Ge Weifeng, Wu Qibing, Yu Lianbo   +4 more
doaj  

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

An Analysis of Fatigue Crack Propagation Rate

Journal of the Society of Materials Science, Japan, 1972
Hereunder is presented the report of the studies that the authors have made about the effect of mean stress on fatigue crack propagation rate at room temperature and at various other low temperatures. Some of authors' conclusions have appeared to be different from those of other investigators.
HASEGAWA, Mitsuhiko, KAWADA, Yuichi
openaire   +2 more sources

Fatigue crack growth rates under variable amplitude load spectra containing tensile underloads [PDF]

, 2003
An extensive research program was performed to investigate the load interaction effect of the combined action of small amplitude high R ratio cycles and large amplitude low R ratio underloads on the crack growth of large cracks.
Zitounis, Vasilios
core