principal axis of stress

principal axis of stress

[′prin·sə·pəl ′ak·səs əv ′stres]
(mechanics)
One of the three mutually perpendicular axes of a body that are perpendicular to the principal planes of stress. Also known as stress axis.
References in periodicals archive ?
For clarifying an effect of extensional deformation on frozen-in orientation, an angle of the principal axis of stress to the FD was numerically analyzed in Fig.

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