Results 51 to 60 of about 1,902,120 (236)

Quantum structural phase transition in chains of interacting atoms

, 2010
A quasi one--dimensional system of trapped, repulsively interacting atoms (e.g., an ion chain) exhibits a structural phase transition from a linear chain to a zigzag structure, tuned by reducing the transverse trap potential or increasing the particle ...
Fishman, Shmuel, Morigi, Giovanna, Shimshoni, Efrat   +2 more
core   +1 more source

High cycle fatigue limit prediction of machining foreign object damaged TC17 titanium specimen based on the theory of critical distances

Scientific Reports
Aircraft engine fans and compressor blades are inevitably subject to external damage during service. It’s an important work to predict the high cycle fatigue limit of foreign object damaged blades.
Kainan Lu, Yibo Shang, Chen Wang, Bin Li, Xiaosheng Zhang, Lingfeng Wang, Zhenhua Zhao, Liucheng Zhou, Wei Chen   +8 more
doaj   +1 more source

Geometrical Properties of Conformal Field Theories Coupled to Two-Dimensional Quantum Gravity

, 1994
In this work we discuss an approach due to F. David to the geometry of world sheets of non-critical strings in quasiclassical approximation. The gravitational dressed conformal dimension is related to the scaling behavior of the two-point function with ...
Berlin, HU, Braune, S.
core   +1 more source

On the multiaxial fatigue assessment of complex three-dimensional stress concentrators [PDF]

, 2014
This paper assesses and quantifies the detrimental effects of complex tri-dimensional notches subjected to uniaxial and multiaxial fatigue loading. A number of experimental results taken from the technical literature and generated by testing specimens ...
ASKES, Harm, DRAPER, John, GERIN, Benjamin, LOUKS, Richard, SUSMEL, Lucas   +4 more
core   +6 more sources

Fatigue life prediction of notched components based on energy gradient using reconstructed critical distance theory

Fatigue & Fracture of Engineering Materials & Structures
In this paper, a reasonable explanation is given to unify notch effect and geometric size effect into notch geometric feature effect (NGFE), and energy gradient is utilized to depict the influence of the NGFE on the critical distance.
Jumei Lu, Jianhui Liu, Fei Zhou, Xuemei Pan, Wenjun Kou, Youtang Li, Shengchuan Wu   +6 more
semanticscholar   +1 more source

Criticality in inhomogeneous magnetic systems: Application to quantum ferromagnets

, 2007
We consider a $\phi^4$-theory with a position-dependent distance from the critical point. One realization of this model is a classical ferromagnet subject to non-uniform mechanical stress.
A. I. Larkin, A. I. Larkin, D. Belitz, L. D. Landau, Ronojoy Saha, S.-K. Ma, S. A. Pikin, S. A. Pikin, T. R. Kirkpatrick   +8 more
core   +1 more source

Interactions between nanofibers in fiber-surfactant suspensions: Theory of corresponding distances [PDF]

, 2014
We present the theory of corresponding distances for the interactions mediated by soft nano- structures in fibrous materials. These fibre-soft-fibre interactions are important for the design of fibrous materials as well as for the critical problem of ...
Bock, Henry, Mueter, Dirk
core   +1 more source

Ising spin glass transition in magnetic field out of mean-field

, 2009
The spin-glass transition in external magnetic field is studied both in and out of the limit of validity of mean-field theory on a diluted one dimensional chain of Ising spins where exchange bonds occur with a probability decaying as the inverse power of
Leuzzi, L, Parisi, G., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J.   +3 more
core   +1 more source

Monopole Current Dynamics and Color Confinement [PDF]

, 1997
Color confinement can be understood by the dual Higgs theory, where monopole condensation leads to the exclusion of the electric flux from the QCD vacuum.
't Hooft, A. Tanaka, Bode, Di Giacomo, Ezawa, Ezawa, H. Ichie, H. Suganuma, Ichie, Ichie, Miyamura, Miyamura, Nambu, Polikarpov, Suganuma, Suganuma   +15 more
core   +2 more sources

The Critical Distance Method to estimate the fatigue strength of notched additively manufactured titanium alloys

Procedia Structural Integrity, 2020
The present investigation deals with the problem of performing the fatigue assessment of notched components made of 3D-printed titanium alloy Ti6Al4V when it is used in the as-manufactured condition.
I. A. Zamzami, S. Razavi, F. Berto, L. Susmel   +3 more
semanticscholar   +1 more source