The influence of geometric imperfections on the stability of three-layer beams with foam core

• Autorzy: Wstawska I.

Identyfikatory

DOI

10.1515/amtm-2017-0010

• Języki publikacji: EN

Abstrakty

EN

The main objective of this work is the numerical analysis (FE analysis) of stability of three-layer beams with metal foam core (alumina foam core). The beams were subjected to pure bending. The analysis of the local buckling was performed. Furthermore, the influence of geometric parameters of the beam and material properties of the core (linear and non-linear model) on critical loads values and buckling shape were also investigated. The calculations were made on a family of beams with different mechanical properties of the core (elastic and elastic-plastic material). In addition, the influence of geometric imperfections on deflection and normal stress values of the core and the faces has been evaluated.

Słowa kluczowe

EN

stability; buckling; three-layer beam; pure bending; FEM

PL

stabilność; wyboczenia; belka trójwarstwowa; czyste zginanie; FEM

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Archives of Mechanical Technology and Materials
• Rocznik: 2017
• Tom: Vol. 37
• Strony: 65--69
• Opis fizyczny: Bibliogr. 12 poz., fig.

Twórcy

autor

Wstawska I.

• Poznan University of Technology, Jana Pawła II 24 Street , 60-965 Poznan, Poland

Bibliografia

• [1] Alipour M.M., Shariyat M., Analytical zigzag formulation with 3D elasticity corrections for bending and stress analysis of circular/annular composite sandwich plates withauxetic cores, Composite Structures, 132 (2015), 175-197.
• [2] Andrews E., Sanders W., Gibson L.J., Compressive and tensile behaviour of aluminum foams, Materials Science and Engineering, 270 (1999), 113-124.
• [3] Best Practice Guide for Sandwich Structures in Marine Applications, New Rail, University of Newcastle upon Tyne, SANDCORE, (2005).
• [4] Carrera E., Brischetto S., Nali P., Plates and shells for smart-structures, John Wiley & Sons; 2011.
• [5] Hadi B.K., Wrinkling of sandwich column: comparison between finite element analysis and analytical solutions, Composite Structures, 53 (1991), 477-482.
• [6] Khalili S.M.R., Botshekanan Dehkordi M., Carrera E., Shariyat M., Non-linear dynamic analysis of a sandwich beam with pseudo elastic SMA hybrid composite faces based on higher order finite element theory, Composite Structures, 96 (2013), 243-55.
• [7] Magnucki K., Szyc W., Wytrzymałość i stateczność belek i płyt trójwarstwowych z rdzeniem z pianki aluminiowej, Wydawnictwo Politechniki Poznańskiej, (2012).
• [8] Pawlus D., Stateczność dynamiczna trójwarstwowych płyt pierścieniowych z rdzeniem lepko sprężystym, Rozprawy Naukowe, Z. 399, Łódź, (2010).
• [9] Reddy J.N., Mechanics of laminated composite plates and shells: theory and analysis, 2nd ed. CRC Press, (2004).
• [10] Sofiyev A.H., The vibration and buckling of sandwich-cylindrical shells covered by different coatings subjected to the hydrostatic pressure, Composite Structures, 117 (2014), 124-34.
• [11] Stiftinger M.A., Rammerstorfer F.G., Face Layer Wrinkling in Sandwich Shells - Theoretical and Experimental Investigation, Thin-Walled Structured, 29 (1997), 113-127.
• [12] Vinson J.R., Sandwich structures, American Society of Mechanical Engineers, 54 (3) (2001), 201-214.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).