A Rational Study on Limit States in Hypoelastic Materials

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Veiskarami M.; Kardooni F.; Khelghat N.; Jahanandish M.; Ghabezloo S.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MATERIALS FORMING Year:2024 | Volume:11 | Issue:1 Page(s): 34-43

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Title

A Rational Study on Limit States in Hypoelastic Materials

Author(s)

Keywords

constitutive equation

Failure

Hypoelasticity

Limit State

Yield

Abstract

Despite the definition of Failure being almost thoroughly studied in other theories such as elasto-plasticity, this paper studies the possibility of capturing or defining some Limit States in hypoelastic materials. It is shown that for many hypoelastic materials the Limit State, as a notion of Failure, can take the place of the Yield or Failure in classical plasticity. The procedure is general, and all equations are rational, i.e. they are not dependent on a particular form of a constitutive equation. constitutive equations cover those applied to both metallic and non-metallic materials. Some practical results were obtained for a particular form of a hypoelastic equation which resembles the Drucker-Prager criterion for the form of the Limit State. Results were also examined against a set of experimental data.

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