A polystyrene component must not fail when a tensile stress of 1.25 MPa (180 psi) is applied. Determine the maximum allowable surface crack length if the surface energy of polystyrene is 0.50 J/m^2 (2.86 10^-3 in.-lbf/in^2). Assume a modulus of elasticity of 3.0 GPa (0.435 10^6 psi).

A polystyrene component must not fail when a tensile stress of 1.25 MPa (180 psi) is applied. Determine the maximum allowable surface crack length if the surface energy of polystyrene is 0.50 J/m^2 (2.86 10^-3 in.-lbf/in^2). Assume a modulus of elasticity of 3.0 GPa (0.435 10^6 psi).

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 27E: The surface tension and viscosity of water at several different temperatures are given in this...

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