Modeling of strains and stresses of material nanostructures§

• Autorzy: Szefer G. , Jasińska D.
• Języki publikacji: EN

Abstrakty

EN

Stress and deformation analysis of materials and devices at the nanoscale level are topics of intense research in materials science and mechanics. In these investigations two approaches are observed. First, natural for the atomistic scale description is based on quantum and molecular mechanics. Second, characteristic for the macroscale continuum model description, is modified by constitutive laws taking atomic interactions into account. In the present paper both approaches are presented. For a discrete system of material points (atoms, molecules, clusters), measures of strain and stress, important from the mechanical viewpoint, are given. Numerical examples of crack propagation and deformation of graphite sheets (graphens) illustrate the behavior of the discrete systems.

Słowa kluczowe

EN

molecular dynamics; deformation gradients; strain tensor; stress tensor

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2009
• Tom: Vol. 57, nr 1
• Strony: 41--46
• Opis fizyczny: Bibliogr. 36 poz., rys.

Twórcy

autor

Szefer G.

autor

Jasińska D.

• Institute of Structural Mechanics, Cracow University of Technology, 24 Warszawska St., 31-155 Cracow, Poland,

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