Polymer Extrusion Die Swell & Elastic Recovery Calculator
Determine extrudate diametral swell ratio ($B = D/D_0$), recoverable shear strain ($S_R$), first normal stress difference ($N_1$), and final profile dimensions.
Die Orifice & Rheological Stresses
N_1 = σ_xx - σ_yy at die exit
Extrudate Swell & Dimensions
Swell Ratio (B = D/D_0)
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Extruded Extrudate Dia
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Recoverable Shear S_R
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Land Ratio L/D
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Tanner Ratio B_T
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Die Tooling Compensation Advice
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