Physical and numerical aspects of dispersion phenomenon in solids under impact loading

• Autorzy: Glema, A.
• Języki publikacji: EN

Abstrakty

EN

Dispersion as the material property is discussed in the paper. The definition, origination and dispersion analysis are presented. The dispersive and non-dispersive constitutive models are studied. The mechanical problem of inelastic deformation of solids is considered. The evolution of viscoplastic flow describes material hardening and softening with formation of strain localization zone. Wave character and dispersion are recognized as fundamental elements in formulation and solution in dynamic, rate dependent processes with strain localization and shear band propagation. The physical and numerical aspects of dispersion clarify the development of deformation, stress or energy distribution and verify the solution procedure. The paper exposes the importance of dispersion phenomenon that should be carefully investigated in class of solid mechanics problems. The numerical results confirm the role of dispersion effects.

Słowa kluczowe

PL

dyspersja; mechanika ciała stałego; obciążenia dynamiczne; fala; sprężystość; lepkoplastyczność

EN

dispersion; solid mechanics; dynamic loads; wave propagation; elasticity; viscoplasticity

• Czasopismo: Foundations of Civil and Environmental Engineering
• Rocznik: 2006
• Tom: No. 7
• Strony: 127-146
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Glema, A.

• Institute of Structural Engineering, Poznan University of Technology Tel.: [phone]; fax: -.,

Bibliografia

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