Stress-update algorithms for Bigoni-Piccolroaz yield criterion coupled with a generalized function of kinematic hardening laws

Sharifian, Mehrdad; Sharifian, Mehrzad; Krysl, Petr; Sharifian, Mehrnaz

doi:10.1016/j.euromechsol.2017.08.011

Cited by 3 publications

(2 citation statements)

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“…Considering the pressure-sensitive material's elastoplastic behavior, the Drucker-Prager yield surface along with the mixed hardening was take into account to propose the angels based integrations by Rezaiee-Pajand and Sharifian (2012) and Rezaiee-Pajand et al (2014a, 2014b. In addition, for the aforementioned yield conditions, an efficient first-order integration was suggested by Sharifian et al (2018aSharifian et al ( , 2018b. In the case of the Bigoni-Piccolroaz yield function, the exponential-map integrations were derived by Rezaiee-Pajand et al (2015) and Sharifian et al (2018aSharifian et al ( , 2018b.…”

Section: Introductionmentioning

confidence: 99%

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A hybrid method to update stress for perfect von-Mises plasticity coupled with Lemaitre damage mechanics

Tavoosi

Sharifian

2019

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Purpose The purpose of this paper is to suggest a robust hybrid method for updating the stress and plastic internal variables in plasticity considering damage mechanics. Design/methodology/approach By benefiting the properties of the well-known explicit and implicit integrations, a new mixed method is derived. In fact, the advantages of the mentioned techniques are used to achieve an efficient integration. Findings The numerical studies demonstrate the high precision and robustness of the suggested algorithm. Research limitations The perfect von-Mises plasticity together with Lemaitre damage model is considered within the realm of small deformations. Practical implications Updating stress and plastic internal variables are of utmost importance in elastoplastic analyses of structures. The accuracy and efficiency of stress-updating methods significantly affect the final outcomes of nonlinear analyses. Originality/value The idea which is used to derive the hybrid method leads to an efficient integration method for updating the constitutive equations of the damage mechanics.

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Section: Introductionmentioning

confidence: 99%

“…In addition, for the aforementioned yield conditions, an efficient first-order integration was suggested by Sharifian et al (2018aSharifian et al ( , 2018b. In the case of the Bigoni-Piccolroaz yield function, the exponential-map integrations were derived by Rezaiee-Pajand et al (2015) and Sharifian et al (2018aSharifian et al ( , 2018b.…”

Section: Introductionmentioning

confidence: 99%