Title

Analysis of nonlinearly elastic cantilever snap beams for assembly of plastic parts

Document Type

Article

Publication Date

1-1-1997

Abstract

Accounting for the nonlinear stress-strain behavior of plastics is important for good design of a snap joint. A constitutive equation for approximating the nonlinear stress-strain behavior of plastics is introduced in this paper. The equations for the stress, strain, and deflection of a cantilever beam, based upon the newly introduced constitutive equation are presented. In comparison with the experimental results, the cantilever deflection predicted from the nonlinear analysis is found to be about 50% more accurate than the corresponding predictions from the linear analysis.

Publication Title

Polymer Engineering and Science

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