Structural Engineering and Mechanics

  • 제22권1호
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  • Pages.17-32
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The uniaxial strain test - a simple method for the characterization of porous materials

  • Fiedler, T. (Centre for Mechanical Technology and Automation, University of Aveiro) ;
  • Ochsner, A. (Centre for Mechanical Technology and Automation, University of Aveiro) ;
  • Gracio, J. (Department of Mechanical Engineering, University of Aveiro)
  • 투고 : 2005.02.25
  • 심사 : 2005.10.17
  • 발행 : 2006.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

The application of cellular materials in load-carrying and security-relevant structures requires the exact prediction of their mechanical behavior, which necessitates the development of robust simulation models and techniques based on appropriate experimental procedures. The determination of the yield surface requires experiments under multi-axial stress states because the yield behavior is sensitive to the hydrostatic stress and simple uniaxial tests aim only to determine one single point of the yield surface. Therefore, an experimental technique based on a uniaxial strain test for the description of the influence of the hydrostatic stress on the yield condition in the elastic-plastic transition zone at small strains is proposed and numerically investigated. Furthermore, this experimental technique enables the determination of a second elastic constant, e.g., Poisson's ratio.

키워드

참고문헌

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피인용 문헌

  1. Experimental Techniques for the Investigation of the Elasto-Plastic Transition Zone of Foamed Materials vol.8, pp.9, 2006, https://doi.org/10.1002/adem.200600073
  2. Microstructure and Properties of Porous High-N Ni-Free Austenitic Stainless Steel Fabricated by Powder Metallurgical Route vol.11, pp.7, 2018, https://doi.org/10.3390/ma11071058