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Sir,
In analysis software we have to input at-least E and U propertiess, But when we look in simple deflection formula (W*L^3)/(3*E*I), not required (poisson's ratio)
why we have to input poisson's ratio?
Have a look at .... Hooke's law of Elasticity Theory /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />
@harikrushna
E and Nu are minimum requirement to form a stiffness matrix - technically...
Theoretically- Nu defines the way material will change its shape. Hooke's Law
