Transient growth of a micro-void in an infinite medium under thermal load with modified Zerilli–Armstrong model

Baghani, Mostafa; Eskandari, Amir Hossein; Zakerzadeh, Mohammad Reza

doi:10.1007/s00707-015-1490-4

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…It is suitable to predict the flow behavior of a large amount of materials at different strain rates and temperatures, which range from room temperature to 0.6 T m ( T m is the melting temperature). Baghani et al [43] considered the temperature-dependent behavior and used a modified Z–A model to describe the plastic hardening characteristics over a wide range of temperature. Mirzaie et al [44] modified the Z–A model by taking into account both a hardening and a softening effect to predict the hot flow stress of materials.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Johnson Cook, Modified Zerilli–Armstrong, and Arrhenius-Type Constitutive Models to Predict Compression Flow Behavior of SnSbCu Alloy

Zhao

et al. 2019

Materials

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The flow behavior of the SnSbCu alloy is studied experimentally by the compression tests in the range of the strain rates from 0.0001 to 0.1 s−1 and temperature from 293 to 413 K. Based on the experimental data, three constitutive models including the Johnson–Cook (J–C), modified Zerilli–Armstrong (Z–A), and Arrhenius-type (A-type) models are compared to find out an optimum model to describe the flow behavior of the SnSbCu alloy. The results show that the J–C model could predict the flow behavior of the SnSbCu alloy accurately only at some specific strain rates and temperature near the reference values. The modified Z–A and A-type constitutive models can give better fitting results than the J–C model. While, at high strains, the predictive values of the modified Z–A model have larger errors than those at low strains, which means this model has limitations at high strains. By comparison, the A-type model could predict the experimental results accurately at the whole strain range, which indicates that it is a more suitable choice to describe the flow behavior of the SnSbCu alloy in the focused range of strain rates and temperatures. The work is beneficial to solve the tribological problem of the bearing of the marine engine by integrating the accurate constitutive model into the corresponding numerical model.

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Section: Introductionmentioning

confidence: 99%

A Comparative Study on Johnson Cook, Modified Zerilli–Armstrong, and Arrhenius-Type Constitutive Models to Predict Compression Flow Behavior of SnSbCu Alloy

Zhao

et al. 2019

Materials

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show abstract

“…Therefore, the Arrhenius equation cannot accurately describe the flow stress, nor can it be sufficiently coupled with the microstructural evolution. The Zerilli–Armstrong and Johnson–Cook equations are also widely used, but they are unable to accurately track the deformation behavior within an entire temperature range and strain rate, especially during the tangible softening stage . Meanwhile, they also fail to account for the coupled influence of strain rate, strain, temperature, and microstructure.…”

Section: Introductionmentioning

confidence: 99%

A Dislocation Density‐Based Unified Constitutive Model of Multipass Deformation

Jia

Peng

2019

steel research int.

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Quantitative relations between the softening mechanism and the constitutive model are determined based on the dislocation density, the influences of various deformation parameters, the dynamic softening mechanism, and static softening mechanism. A unified explicit constitutive model of multipass deformation is established by coupling the microstructural model of Q345B steel (the equivalent of ASTM A572Gr50). The flow stress curves under different deformation conditions are obtained from a Gleeble-3500 thermosimulation machine during hot compression deformation, including single-pass and double-pass compression for Q345B. From the experimental results, a new method to identify parameters is developed to determine the material parameters for the unified constitutive model and to establish their analytic expressions. The results predicted from the proposed model are also presented for validation and compared with the experimental results. The proposed model can accurately describe the stressstrain curves during dynamic recovery on the high-stress stage, during dynamic recrystallization, steady flow state, and next pass after the completion of static softening. In addition, the errors from the model are adequately analyzed to make further improvements.

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Analysis of thermal cavitation in a viscoelastic composite sphere under a uniform temperature field

Chen,

Shang

2023

Mech Time-Depend Mater

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Transient growth of a micro-void in an infinite medium under thermal load with modified Zerilli–Armstrong model

Cited by 5 publications

References 24 publications

A Comparative Study on Johnson Cook, Modified Zerilli–Armstrong, and Arrhenius-Type Constitutive Models to Predict Compression Flow Behavior of SnSbCu Alloy

A Comparative Study on Johnson Cook, Modified Zerilli–Armstrong, and Arrhenius-Type Constitutive Models to Predict Compression Flow Behavior of SnSbCu Alloy

A Dislocation Density‐Based Unified Constitutive Model of Multipass Deformation

Analysis of thermal cavitation in a viscoelastic composite sphere under a uniform temperature field

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