casting occulsion stress analysis

Post on 21-Jan-2018

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Casting defects - FEA analysiswill an inclusion affectthe factor of safety ?

11/5/17 rev A

Don Blanchet

3B Associates

dwb3298@verizon.net

Prepared for:Ural Mining LTD

Solidworks model

PressureProof load

TestingPerformed

On aSteel

casting

Part download from Grabcad library

Meshed FEA model

Loads and supports

Fixed flange

InternalTest

pressure500 psi

Inclusion defect small air pocket detected by x-ray

Modeled pocket

Solid model section viewshowing small void

FEA stress contours on voidsurfaces and corners, psi

Results

Peak stress in the wall of the casting approx. ~ 3500 psi

Peak stress in the wall of the voiddefect approx. ~ 3000 psi

This void should have no effect on thestrength of the casting.

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