GEOMETRIC CONSTRAINTS AND TANGENTIAL AND RADIAL STRESSES OF ROTATING DISCS WITH VARIABLE THICKNESS
ABSTRACT: This article
presents an algorithm
along with Scilab
codes to calculate
radial and tangential stresses in rotating disc with
varying thickness. The continuous change of thickness is represented by stepped; discrete
ones.The geometry of
disc is represented
by two arrays,
each of whose
elements represents the radius and the thickness respectively. The
stresses arise due to combination of rotation and prescribed
pressures at the
outer and inner
radiuses of the
disc. The stresses
are limited to linearly
elastic cases; loadings
and rotation causing
either non-linear elastic
or plastic strains
are beyond the scope
of this work.
Linear inequality onstraints
on the values
of the radiuses
are prescribed in order
to prevent overlapping
of radiuses, and
thus maintain the
validity of the
disc geometry. Codes are designated for Scilab for ease of use.
Author: Toni Prahasto
Journal Code: jptmesingg130005
