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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.28 No.2
- 발행연도
- 2018.1
- 수록면
- 195 - 207 (13page)
이용수
초록· 키워드
오류제보하기
First-order reliability method (FORM) is enhanced based on the search direction using relaxed conjugate reliability (RCR) approach for the embedded nanocomposite beam under buckling failure mode. The RCR method is formulated using discrete conjugate map with a limited scalar factor. A dynamical relaxed factor is proposed to control instability of proposed RCR, which is adjusted using sufficient descent condition. The characteristic of equivalent materials for nanocomposite beam are obtained by micro-electro-mechanical model. The probabilistic model of nanocomposite beam is simulated using the sinusoidal shear deformation theory (SSDT). The beam is subjected to external applied voltage in thickness direction and the surrounding elastic medium is modeled by Pasternak foundation. The governing equations are derived in terms of energy method and Hamilton’s principal. Using exact solution, the implicit buckling limit state function of nanocomposite beam is proposed, which is involved various random variables including thickness of beam, length of beam, spring constant of foundation, shear constant of foundation, applied voltage, and volume fraction of ZnO nanoparticles in polymer. The robustness, accuracy and efficiency of proposed RCR method are evaluated for this engineering structural reliability problem. The results demonstrate that proposed RCR method is more accurate and robust than the excising reliability methods-based FORM. The volume fraction of ZnO nanoparticles and the applied voltage are the sensitive variables on the reliable levels of the nanocomposite beams.
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참고문헌 (60)
참고문헌 신청
Alibrandi, U. / 2015 / A new sampling strategy for SVM-based response surface for structural reliability analysis / Probabil. Eng. Mech. 41:1~12
Julien Averseng / 2017 / Reliability analysis of the nonlinear behaviour of stainless steel cover-plate joints / Steel and Composite Structures, An International Journal 25(1):45~55
Barzoki, A. / 2012 / Electro-thermo-mechanical torsional buckling of a piezoelectric polymeric cylindrical shell reinforced by DWBNNTs with an elastic core / Appl. Math. Model. 36(1):2983~2995
Bonstrom, H. / 2014 / First-order reliability approach to quantify and improve building portfolio resilience / J. Struct. Eng. 142(8):C4014001
Chojaczyk, A.A. / 2015 / Review and application of artificial neural networks models in reliability analysis of steel structures / Struct. Safe. 52:78~89
Julien Averseng / 2017 / Reliability analysis of the nonlinear behaviour of stainless steel cover-plate joints / Steel and Composite Structures, An International Journal 25(1):45~55
Barzoki, A. / 2012 / Electro-thermo-mechanical torsional buckling of a piezoelectric polymeric cylindrical shell reinforced by DWBNNTs with an elastic core / Appl. Math. Model. 36(1):2983~2995
Bonstrom, H. / 2014 / First-order reliability approach to quantify and improve building portfolio resilience / J. Struct. Eng. 142(8):C4014001
Chojaczyk, A.A. / 2015 / Review and application of artificial neural networks models in reliability analysis of steel structures / Struct. Safe. 52:78~89
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