Results 51 to 60 of about 150,616 (300)

Downscaling of fracture energy during brittle creep experiments [PDF]

, 2011
We present mode 1 brittle creep fracture experiments along fracture surfaces that contain strength heterogeneities. Our observations provide a link between smooth macroscopic time-dependent failure and intermittent microscopic stress-dependent processes.
Ampuero, J.-P., Elkhoury, J. E., Lengliné, O., Måløy, K. J., Schmittbuhl, J., Toussaint, R.   +5 more
core   +4 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Failure analysis of a field brittle fracture composite insulator: characterisation by X-ray photoelectron spectroscopy analysis

High Voltage, 2018
In the present work, a field brittle fracture composite insulator was collected and examined with the purpose of obtaining a better understanding of the failure features.
Yanfeng Gao, Xidong Liang, Weining Bao, Chao Wu, Shaohua Li   +4 more
doaj   +1 more source

Modelling brittle fracture propagation in gas and dense-phase CO2 transportation pipelines [PDF]

, 2016
The development and application of a fluid–structure interaction model for simulating the transition of a through-wall defect in pressurised dense (150 bar, 283.15 K) and gas phase (34 bar, 283.15 K) CO2 pipelines into a running brittle fracture is ...
Brown, S, Mahgerefteh, H, Zhang, P
core   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source

Atomistic Simulations of Nanotube Fracture

, 2002
The fracture of carbon nanotubes is studied by atomistic simulations. The fracture behavior is found to be almost independent of the separation energy and to depend primarily on the inflection point in the interatomic potential.
A. Maiti, A. Omeltchenko, B. I. Yakobson, B. I. Yakobson, B. W. Smith, C. T. White, D. Vogtenhuber, D. W. Brenner, F. Banhart, G. C. Schatz, G. Van Lier, J. Despres, J. E. Sinclair, J. L. Graves, J. P. Lu, J. P. Salvetat, J. R. Smith, M. B. Nardelli, M. B. Nardelli, M. F. Yu, M. P. Campbell, M. R. Falvo, O. A. Shenderova, R. Chang, R. S. Ruoff, R. S. Ruoff, S. Iijima, S. Iijima, S. P. Xiao, T. Belytschko   +29 more
core   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

The Influence of Temperature on the Fracture Toughness and Fracture Mechanism of Ferritic Nodular Cast Iron

Metals
Nodular Cast Iron (NCI, also known as ductile iron) is widely used in important components such as crankshafts for automotive engines and internal combustion engines, as well as storage and transportation containers for spent fuel in nuclear power plants,
Guobin Duan, Yu Jiang, Yongxin Zhang, Jibin Zhang, Xuechong Ren   +4 more
doaj   +1 more source

Moving mesh finite element simulation for phase-field modeling of brittle fracture and convergence of newton's iteration

, 2017
A moving mesh finite element method is studied for the numerical solution of a phase-field model for brittle fracture. The moving mesh partial differential equation approach is employed to dynamically track crack propagation. Meanwhile, the decomposition
Huang, Weizhang, Li, Xianping, Zhang, Fei, Zhang, Shicheng   +3 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source