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THE TENSOR OF LOGARITHMIC AND CONVENTIONAL STRAINS


UNGUREANU VIOREL
UNIVERSITY OF BACĂU

Issue:

MOCM, Number 11, Volume I

Section:

Methods And Techniques In Strain And Stress Research

Abstract:

The focus of this paper is the presentation of linear and angularcomponents of logarithmic strain tensor useful in the description of large plasticdeformation. The definition of logarithmic strain is obtained from law of energytransformation and conservation. The linear and angular components of logarithmic straintensor are compared with the conventional strain. The differences between theconventional and logarithmic (true or natural strain) are presented in some obtaineddiagrams. The components of logarithmic strain are useful in the experimental analysis ofstrain field in the cold forming processes, and in the mechanical characteristics of thematerials determination.

Keywords:

linear logarithmic strain, angular logarithmic strain, displacements.

Code [ID]:

MOCM200511V01S01A0032 [0000331]


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