neutral axis

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neutral axis

n
(General Engineering) engineering the line or plane through the section of a beam or plate which does not suffer extension or compression when the beam or plate bends
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The 3D model regards eccentricities in truss cross-bracings to bottom flange connections as well as different levels of neutral axes of steel cross beams, composite cross beams, slab mid-plane and supports.
Thus, the task of this work is to derive a theoretic solution for very important problem and in many cases the most complicated one--calculation of neutral axes location by ZI method for cross-section of flexural members when strain of any layer is not known beforehand together with N [not equal to] 0 or/and P [not equal to] 0.
Commonly analyzed properties include stiffness, neutral axes, center of gravity, mass, principal inertial axes, shear correction factors, and shear center.