Study On Mechanical Properties Of Aluminum Foam Sandwich Panels

Aluminum foam sandwich panel is a new light-weight material which exhibits highspecific strength, high stiffness, excellent sound absorption, thermal insulation, fireprotection,and electromagnetic shielding performance.Because of their distinguishedmechanical and thermal behavior, they have found wide applications in various contexts, suchasaviation,aerospace, construction,automotiveand shipbuilding.Recently, both Domestic and foreign researchers have undertaken extensive researchon static and dynamic properties of aluminum foam sandwich panels.Most of the works areconcerning the absorption of impact energy. But in application,foam aluminum sandwichpaneldoes not limitits application in the impact energy absorption. Besides, it has been widelyused inconstruction of the interior materialsand large rotating machinery installationplatform.It is also an excellentlightweight substitute material for automobile and shipstructure.Therefore, it is required that this materialcould efficiently reduce vibration and noise,absorb impact energy, and exhibit great staticperformance.This article mainly studies thestatic performance and vibration deduction of foam aluminum sandwich, and conductsin-depth analysis of the static and dynamic properties of aluminum foam sandwich panels andits structure.The specific contents are as follows:1．The relationship between the porosity and pore size of the aluminum foam is derived,the static analysis and modal analysis are conducted, and the relation between the rules passthe mechanical properties of aluminum foam core aperture and panel setis studied.2．Kinetic analysis of aluminum foam sandwich panels based on the finite elementsoftware ANSYS is conducted.Influence of boundary conditions,panel core thickness, existingofholes, hole shape, and the numbers of openingon the dynamic propertyof aluminum foamsandwich is studied.3．Harmonic response analysis of the aluminum foam sandwich panels is conducted, andis compared with aluminum, steel and other traditional metal plates.The frequency-responsecurves of the key nodes of the various plates are comparedand analyzed.And it’s found thataluminum foam sandwich panels havesignificant advantage in damping energy absorptionperformance over traditional metal plates.4．In view of the existing shelter, a new aluminum foam sandwich shelter form is proposed, and static and dynamic analysis of aluminum foam sandwich panel shelter andtraditional shelterare studied by using finite element software ANSYS. The resultsindicatethat aluminum foam sandwich shelter exhibits better mechanical propertiesthan thetraditional cabin in stiffness and strength.Shelter structure position and size of doors andwindows as well as the sandwich panel core thickness are optimized statically anddynamically, which not only improves the static and dynamic performance of foam aluminumcabin, while also reducesthe weight the shelter structure.