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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.80 No.5
- 발행연도
- 2021.12
- 수록면
- 539 - 551 (13page)
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초록· 키워드
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With the continuous increase of computational capacity, more and more complex nonlinear elastoplastic constitutive models were developed to study the mechanical behavior of elastoplastic materials. These constitutive models generally contain a large amount of physical and phenomenological parameters, which often require a large amount of computational costs to determine. In this paper, an inverse parameter determination method is proposed to identify the constitutive parameters of elastoplastic materials, with the consideration of both strain rate effect and temperature effect. To carry out an efficient design, a hybrid optimization algorithm that combines the genetic algorithm and the Nelder-Mead simplex algorithm is proposed and developed. The proposed inverse method was employed to determine the parameters for an elasto-viscoplastic constitutive model and Johnson-cook model, which demonstrates the capability of this method in considering strain rate and temperature effect, simultaneously. This hybrid optimization algorithm shows a better accuracy and efficiency than using a single algorithm. Finally, the predictability analysis using partial experimental data is completed to further demonstrate the feasibility of the proposed method.
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참고문헌 (39)
참고문헌 신청
Avril, S. / 2008 / Overview of identification methods of mechanical parameters based on full-field measurements / Exp. Mech 48(4):381~402
Aydin, M. S. / 2011 / Yield locus evolution and constitutive parameter identification using plane strain tension and tensile tests / J. Mater. Proc. Technol 211(12):1957~1964
Aymen Nasr / 2018 / Friction tuned mass damper optimization for structure under harmonic force excitation / Structural Engineering and Mechanics, An Int＇l Journal 65(6):761~769
Bouda, P. / 2019 / A computational approach to design new tests for viscoplasticity characterization at high strain-rates / Comput. Mech 64(6):1639~1654
Boyer, R. / 1993 / Materials Properties Handbook:Titanium Alloys / ASM International
Aydin, M. S. / 2011 / Yield locus evolution and constitutive parameter identification using plane strain tension and tensile tests / J. Mater. Proc. Technol 211(12):1957~1964
Aymen Nasr / 2018 / Friction tuned mass damper optimization for structure under harmonic force excitation / Structural Engineering and Mechanics, An Int＇l Journal 65(6):761~769
Bouda, P. / 2019 / A computational approach to design new tests for viscoplasticity characterization at high strain-rates / Comput. Mech 64(6):1639~1654
Boyer, R. / 1993 / Materials Properties Handbook:Titanium Alloys / ASM International
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