Coupled systems mechanics

  • 제11권3호
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  • Pages.217-231
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  • 2022
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  • 2234-2184(pISSN)
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  • 2234-2192(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Multilayered frame structure subjected to non-linear creep: A delamination analysis

  • Rizov, Victor I. (Department of Technical Mechanics, University of Architecture, Civil Engineering and Geodesy) ;
  • Altenbach, Holm (Lehrstuhl fur Technische Mechanik, Fakultat fur Maschinenbau, Otto-von-Guericke-Universitat Magdeburg)
  • 투고 : 2021.11.12
  • 심사 : 2022.01.05
  • 발행 : 2022.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

The present paper is concerned with a delamination analysis of a multilayered frame structure that exhibits non-linear creep behavior. A solution to the strain energy release rate is obtained by considering the time-dependent complementary strain energy in the frame. The mechanical behavior of the frame is treated by using a non-linear stress-strain-time relationship. The time-dependent solution to the strain energy release rate obtained in the present paper holds for a multilayered frame made of arbitrary number of adhesively bonded layers of different thicknesses and material properties. Besides, the dealamination is located arbitrary along the thickness. The solution to the strain energy release rate is verifiedby applying the J-integral approach. A parametric study of the strain energy release rate is carried-out. Two three-layered frame configurations are analyzed in order to evaluate the influence of the delamination crack location along the thickness on the strain energy release rate. The strain energy release is analyzed also for the case when a notch is cut-out in the inner delamination crack arm. The results obtained are compared with these for a frame without a notch.

키워드

과제정보

This study was performed during the German Academic Exchange Organization (DAAD) supported research stay of the first author (V.I.R.) in Department of Engineering Mechanics, Institute of Mechanics, Otto-von-Guericke-University, Magdeburg, Germany.

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