Numerical Simulation Of Mechanical Property Of Tubes Filled With Aluminum Foam And Sandwich Beams With Aluminum Foam Core

Aluminum and aluminum alloy foam is a kind of engineering material, which has an interesting combination of mechanical and physical properties, such as high strength and stiffness for a given weight. So it is multifunctional solid and can be used in a variety of civil industries, such as automobile, railway and component manufacturing.In present thesis, Experimental research on the mechanical behaviors of aluminum foam is carried out. The conclusion will make an important role in its applications.Firstly, finite element models of empty and fully foam-filled tubes are established and the compressing behavior of these structures is simulated with the use of ABAQUS software, and the mechanical behavior of thin-walled cylindrical aluminum alloy tube with aluminum foam filler is studied by simulating compression's experiments numerically and compare with the results of experiments'. Finally the numerical results are in good agreement with those obtained experimentally. According to thin-walled cylindrical aluminum alloy tube and thin-walled cylindrical aluminum alloy tube with aluminum foam filler's stress-strain drawings, the two structures are contrasted. The results are fully foam-filled tubes can endure more stress than the empty tubes.Secondly, Vertical compressing mechanical properties of thin-walled square tubes filled with aluminum foam under quasi-static loading conditions were studied in this paper. And finite element models of empty tubes was established and the compressing behavior of this structures was simulated with the use of ABAQUS software, The results indicated that fully foam-filled tubes can endure more stress than the empty tubes.Finally, three-point bending mechanical properties of sandwich beams with aluminum foam core were studied in this paper. And finite element model of sandwich beams with aluminum foam core was established and the three-point bending of this structure was simulated with the use of ABAQUS software. The results indicated that the load curve of sandwich beams with aluminum foam core loading in three-point bending is higher than both curve of aluminum foam and aluminum board in three point bending. The sandwich beams with aluminum foam core not only remain feature but also improve ultimate of its load and winding, so the sandwich beams with aluminum foam core is excellent for more good mechanics property.In this paper mechanical property of aluminum foam filled tubes and sandwich beams with aluminum foam core are simulated with the use of ABAQUS software. As a result of these structures are complex and involve a lot of parameter, establish rational mathematic models are very useful for these structures'mechanical and optimize.