“Influence of rotatory inertia and shear on flexural motions of isotropic elastic plates”

E843487

“Influence of rotatory inertia and shear on flexural motions of isotropic elastic plates” is a seminal paper by Raymond D. Mindlin that introduced a refined plate theory accounting for shear deformation and rotary inertia effects in elastic plate vibrations.

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Predicate Object
instanceOf scientific paper
addresses discrepancies between classical plate theory and experimental vibration data for thick plates
aimsTo improve accuracy of vibration frequency predictions for thick plates
appliesTo moderately thick plates
thick plates
assumes isotropic elastic material behavior
author Raymond D. Mindlin NERFINISHED
citedFor formulation of Mindlin plate bending equations
inclusion of rotary inertia terms in plate vibration models
inclusion of transverse shear deformation in plate vibration models
comparesWith classical thin plate vibration results
field applied mechanics
elasticity theory
structural mechanics
vibration analysis
focusesOn effects of rotary inertia
effects of transverse shear deformation
flexural vibrations of isotropic elastic plates
hasKeyIdea coupling between bending and shear deformation in plate vibrations
shear correction to account for non-uniform shear stress distribution through thickness
improvesOn classical Kirchhoff–Love plate theory
includes rotational inertia of plate cross sections
transverse shear strain
influenced development of modern plate and shell theories
finite element formulations for plate bending
introducesConcept Mindlin plate theory NERFINISHED
first-order shear deformation theory for plates
isConsidered foundational reference for Mindlin–Reissner plate models
seminal work in plate vibration theory
language English
mainContribution introduction of a refined plate theory including shear deformation and rotary inertia
mathematicalFormulation partial differential equations of motion for plates with shear and rotary inertia
neglects transverse normal strain
provides frequency equations for plate vibration modes
governing differential equations for plate flexural motion including shear and rotary inertia
relevance high for high-frequency vibration analysis of plates
high for short-wavelength flexural modes
typicalAssumption linear elastic behavior
small deflections
usedIn analysis of dynamic response of plate structures
design of thick plate components in mechanical and civil engineering

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Raymond D. Mindlin notableWork “Influence of rotatory inertia and shear on flexural motions of isotropic elastic plates”