TITLE

Nucleation and phase propagation in a multistable lattice with weak nonlocal interactions

AUTHOR(S)
Puglisi, G.
PUB. DATE
October 2007
SOURCE
Continuum Mechanics & Thermodynamics;Oct2007, Vol. 19 Issue 5, p299
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We study the overdamped gradient flow dynamics of a chain of massless points connected by bistable nearest-neighbor (NN) interactions and harmonic next-nearest-neighbor (NNN) interactions under quasistatic loads of assigned displacements. The model reproduces experimental observations on the phase transition of shape-memory wires with the possibility of different microstructure evolution strategies: internal or boundary nucleations and one or two coherently propagating phase fronts. The presence or absence of a stress peak is also obtained by considering nonlocal interaction effects with the loading device. Similar results are also obtained under the hypothesis of global energy minimization. The system also retains the described properties in the continuum limit. Some rate effects are numerically analyzed.
ACCESSION #
26638390

 

Related Articles

  • A correction to the Maxwell distribution and the Bose-Einstein-type distribution in classical physics. Maslov, V. P. // Theoretical & Mathematical Physics;Oct2008, Vol. 157 Issue 1, p1491 

    We find new distributions in classical statistical physics that explain some old and new experiments.

  • MRI Study of Nucleation and Growth During the Field Induced First Order Phase Transition Between U2D2 and CNAF 3He near Absolute Zero. Tanaka, T.; Yatsuya, M.; Mizusaki, T.; Sasaki, Y. // Journal of Low Temperature Physics;Mar2010, Vol. 158 Issue 5/6, p737 

    The field-sweep-induced first order phase transition between two nuclear antiferromagnetic states of solid 3He was studied at the temperatures near absolute zero. The phase transition proceeded in two stages. The first stage was governed by a nucleation process, in which many small seeds of the...

  • Kinetics of Crystallization of Binary Melts of Eutectic-Forming Substances. Taran, A. L.; Nosov, G. A.; Myasnikov, S. K.; Kholin, A. Yu. // Theoretical Foundations of Chemical Engineering;Mar/Apr2004, Vol. 38 Issue 2, p164 

    The crystal nucleation and growth rates in eutectic-forming melts are experimentally determined using a universal technique for finding the kinetic parameters of processes involving phase transformations. It is shown that, with an increase in the concentration of the impurity component, the...

  • Metastable microstructures in rapidly solidified zirconium alloys. Banerjee, S.; Dey, G. K. // Journal of Materials Science;Jun2004, Vol. 39 Issue 12, p3985 

    Zirconium alloys exhibit a wide variety of phase transformations. The present review outlines some aspects of phase transformations, which are encountered in rapidly solidified zirconium alloys. The possibility of solidification of unalloyed zirconium directly into the low temperature phase is...

  • On the Theory of Phase Transformations with a Nonuniform Nucleation Rate. Alekseechkin, N. V. // Physics of the Solid State;Dec2000, Vol. 42 Issue 12, p2273 

    An expression for the phase volume fraction in a system with a nonuniform nucleation rate is derived by using the geometrical-probabilistic approach. Examples of such systems considered here are (1) a plane layer (with nucleation in the midplane) and random planes in space, (2) an infinitely...

  • Influence of mould parameters on the microstructure of cast copper aluminium bronze.  // Revue de Métallurgie;Oct2010, Vol. 107 Issue 9, p387 

    The phases obtained in copper aluminium bronze alloy (Cu-10wt.%Al-2wt.%Fe) cast into a permanent mould were investigated. The parameters examined were the thickness of the graphite coating of the mould and its pre-heated temperature. The phases αand γ2were detected as well as the...

  • Modeling of organism’s adaptive reaction to environmental changes. R. Grigoryan; T. Aksenova // Cybernetics & Systems Analysis;Jan2008, Vol. 44 Issue 1, p107 

    Abstract  A multicellular organism is shown to be a community of special self-regulated cells with rigid and flexible regulating links, and a long-term adaptive trend of its system reaction to environmental changes is due to changes in the consumer gradients of groups of cells functioning...

  • Quantum Mechanics in Insulators. Aeppli, G. // AIP Conference Proceedings;8/20/2009, Vol. 1162 Issue 1, p3 

    Atomic physics is undergoing a large revival because of the possibility of trapping and cooling ions and atoms both for individual quantum control as well as collective quantum states, such as Bose-Einstein condensates. The present lectures start from the ‘atomic’ physics of...

  • Effect of Solvent Deuteration in the Radiative Deactivation of Electronically Excited Uranyl Ion upon Phase Transitions in Aqueous Sulfuric Acid Solutions. Lotnik, S. V.; Khamidullina, L. A.; Kazakov, V. P. // Doklady Physical Chemistry;Sep2003, Vol. 392 Issue 1-3, p227 

    Discusses the effect of solvent deuteration in the radiative deactivation of electronically excited uranyl ion upon phase transitions in aqueous sulfuric acid solutions. Difference between the shapes of the lifetime versus temperature curves of the electronically excited uranyl ion; Approach for...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics