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Analytical and Experimental Determination of FML Stiffness and Strength Properties
(Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki Łódzkiej, 2015) Kamocka, Monika; Mania, Radosław J.
The paper presents application of analytical methods of determining the mechanical properties of Fibre Metal Laminates. Chosen micromechanical methods were employed to predict elastic moduli and strength of FML panels. Prediction was conducted on two levels i.e. micromechanics where properties of a single composite lamina (prepreg) were analyzed, and macro-mechanics to determine properties of a full FML hybrid material. The properties of a single GFR lamina were predicted by Rule of Mixture Method (ROM), inverse Rule of Mixture Method with correction factor, Halpin Tsai Method, Tsai Method and Wilczynski Method application. Properties of full 3-2 FML lay-up were determined using the Rule of Mixtures. Analytical results were verified by experimental tests. Tensile and bending test were performed on rectangular standard coupons of 3-2 FMLs.
Analytical and Experimental Determination of FML Stiffness and Strength Properties.
(Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics., 2015) Kamocka, Monika; Mania, Radosław J.
The paper presents application of analytical methods of determining the mechanical properties of Fibre Metal Laminates. Chosen micromechanical methods were employed to predict elastic moduli and strength of FML panels. Prediction was conducted on two levels i.e. micromechanics where properties of a single composite lamina (prepreg) were analyzed, and macro–mechanics to determine properties of a full FML hybrid material. The properties of a single GFR lamina were predicted by Rule of Mixture Method (ROM), inverse Rule of Mixture Method with correction factor, Halpin Tsai Method, Tsai Method and Wilczynski Method application. Properties of full 3–2 FML lay–up were determined using the Rule of Mixtures. Analytical results were verified by experimental tests. Tensile and bending test were performed on rectangular standard coupons of 3–2 FMLs.
Corner radius effect in the thin-walled columns of regular polygon cross-section on the local buckling and load carrying capacity
(Lodz University of Technology Press, 2016) Kamocka, Monika; Królak, Marian; Mania, Radosław, J.
Authors of this work have been investigated a corner radius effect on the local buckling of thin-walled structures. For each considered regular cross-section shapes (i.e. triangular, square, regular pentagon or hexagon) different values of corner radii were applied taking into account a constant area of a column crosssection. This study appears to be some kind of an optimizing analysis of thinwalled members without fundamental formulation.