Object

Title: An internal variable theory of inelastic behaviour at high rates of strain

Creator:

Bruhns, O. T. ; Diehl, H.

Date issued/created:

1989

Resource Type:

Journal

Publisher:

Polish Scientific Publishers IFTR

Place of publishing:

Warszawa

Description:

Od Vol. 43, issue 1 (1991) wyd.: Polish Scientific Publishers = PWN ; Od Vol. 50, issue 4 (1998) wyd.: Agencja Reklamowo-Wydawnicza A. Grzegorczyk ; Od Vol. 53, issue 4/5 (2001) wyd: PAS. IFTR ; [1], 425-610 s. ; 24 cm

Abstract:

The objective of the present paper is the formulation of the general frame of an internal variable theory of high strain rate deformations in metals. Such deformation are characterized by nucleation, growth and coalescence of various microdefects like shear bands, cracks and voids. Localized deformations in the vicinity of these microdefects as well as disloaction motion in the remaining parts of the body contribute to the inelastic strain rate. After identification of appropriate internal variables through an approximate homogenization procedure, evolution laws and flow rules are introduced and investigated with respect to their consistency with thermodynamics. The Clausius-Duhem inequality is utilized as a measure of irreversibility. Introducing a polynomial representation of specific free enthalpy, thermodynamically consistent evolution laws are derived. Finally, the theory is applied to the problem of propagation of uniaxial acceleration waves into an unstressed homogeneous medium.

Relation:

Archives of Mechanics

Volume:

41

Issue:

4

Start page:

427

End page:

460

Resource Identifier:

oai:rcin.org.pl:72825

Source:

IPPT PAN, call no. P.262 ; click here to follow the link

Language:

eng

Language of abstract:

eng ; pol ; rus

Rights:

Creative Commons Attribution BY 4.0 license

Terms of use:

Copyright-protected material. [CC BY 4.0] May be used within the scope specified in Creative Commons Attribution BY 4.0 license, full text available at: ; -

Digitizing institution:

Institute of Fundamental Technological Research of the Polish Academy of Sciences

Original in:

Library of the Institute of Fundamental Technological Research of The Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget. ;

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