Abstract
Presented in this paper are the computational results on deformation of austenitic steels at different strain rates and temperatures. To describe the dynamic response of steels a relaxation constitutive equation was developed using a thermomechanical physically-based model. On the base of experimental data on uniaxial loading of new steels in the range of strain rates from 0.001 to 500 s-1 the model parameters were derived, and dynamic responses of the steels were predicted, within the range of strain rates up to 8000 s-1 and at initial temperatures from 77 to 600 K, with the strains exceeding 60% being calculated. A plane stress analysis was performed using the ABAQUS finite-element procedure with a user-defined subroutine developed. The physically-based model was developed to take into consideration an evolution of the dislocation density and the Lüders band propagation. Plane strain simulations of thermomechanical response of HSLA-65 steel were carried out for different strain rates and initial temperatures at the initial stage of compression (strain <10%).
| Original language | English |
|---|---|
| Pages (from-to) | 1277-1287 |
| Number of pages | 11 |
| Journal | Mechanics of Materials |
| Volume | 41 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Dec 2009 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
- Instrumentation
- Mechanics of Materials
Cite this
Finite-element and finite-difference simulations of the mechanical behavior of austenitic steels at different strain rates and temperatures. / Balokhonov, Ruslan Revovich; Romanova, V. A.; Schmauder, S.
In: Mechanics of Materials, Vol. 41, No. 12, 01.12.2009, p. 1277-1287.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Finite-element and finite-difference simulations of the mechanical behavior of austenitic steels at different strain rates and temperatures
AU - Balokhonov, Ruslan Revovich
AU - Romanova, V. A.
AU - Schmauder, S.
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Presented in this paper are the computational results on deformation of austenitic steels at different strain rates and temperatures. To describe the dynamic response of steels a relaxation constitutive equation was developed using a thermomechanical physically-based model. On the base of experimental data on uniaxial loading of new steels in the range of strain rates from 0.001 to 500 s-1 the model parameters were derived, and dynamic responses of the steels were predicted, within the range of strain rates up to 8000 s-1 and at initial temperatures from 77 to 600 K, with the strains exceeding 60% being calculated. A plane stress analysis was performed using the ABAQUS finite-element procedure with a user-defined subroutine developed. The physically-based model was developed to take into consideration an evolution of the dislocation density and the Lüders band propagation. Plane strain simulations of thermomechanical response of HSLA-65 steel were carried out for different strain rates and initial temperatures at the initial stage of compression (strain <10%).
AB - Presented in this paper are the computational results on deformation of austenitic steels at different strain rates and temperatures. To describe the dynamic response of steels a relaxation constitutive equation was developed using a thermomechanical physically-based model. On the base of experimental data on uniaxial loading of new steels in the range of strain rates from 0.001 to 500 s-1 the model parameters were derived, and dynamic responses of the steels were predicted, within the range of strain rates up to 8000 s-1 and at initial temperatures from 77 to 600 K, with the strains exceeding 60% being calculated. A plane stress analysis was performed using the ABAQUS finite-element procedure with a user-defined subroutine developed. The physically-based model was developed to take into consideration an evolution of the dislocation density and the Lüders band propagation. Plane strain simulations of thermomechanical response of HSLA-65 steel were carried out for different strain rates and initial temperatures at the initial stage of compression (strain <10%).
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U2 - 10.1016/j.mechmat.2009.08.005
DO - 10.1016/j.mechmat.2009.08.005
M3 - Article
VL - 41
SP - 1277
EP - 1287
JO - Mechanics of Materials
JF - Mechanics of Materials
SN - 0167-6636
IS - 12
ER -