Buckling Behaviour of Short Cylindrical Functionally Gradient Polymeric Materials

Abstract

In the present study, the buckling behavior of short cylindrical Functionally Gradient Polymeric Materials (FGPMs) was studied. Besides, the structure and graphite distributions of the FGPMs were investigated. Epoxy resin was used as polymeric matrix component and two types of graphite powder materials, PAM96/98 and PV60/65, were selected. Graphite powders were added in quantities of 3, 6, 9, and 12% of volume respectively. Short cylindrical FGPMs samples were manufactured by centrifugal casting method. The structure and graphite distribution of FGPMs samples were investigated by light microscope and image processing program. It was observed that the graphite distribution had varied between the inner and outer diameter. The buckling behavior of short cylindrical FGPMs was analyzed by nite element analysis. The buckling loads of FGPMs samples were predicted.

Lengthwise fracture analyses of functionally graded beams by the Ramberg-Osgood equation

“…Thus, By combining of (1), (2), (12), (13), (24) and (31) (11), (14), (15), and (32). Also, formula (15) (14) and (15). The expression obtained by substituting of (28), (29), (30) and (33) in (27) is doubled in view of the symmetry (Fig.…”

“…Functionally graded materials play a vital role in many engineering applications in aerospace, nuclear reactors, power plants, electronics, optics and [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. In this way, one can obtain maximum benefits from the in-homogeneity of the functionally graded materials.…”

“…For instance, the behavior of functionally graded structural members and components to externally applied loadings and influences can be optimized. The un-homogeneous character of the functionally graded materials makes the study of the mechanical response of the functionally graded structural members and components to the externally applied loading a challenging task [12][13][14][15][16][17]. An analytical approach for obtaining a solution for the stress state of a linear-elastic un-homogeneous cylinder with arbitrary varying material properties has been developed by applying a direct integration method [13].…”

Abrasive Wear of AlSi12-Al2O3 Composite Materials Manufactured by Pressure Infiltration

“…The use of particles or short fibres (discontinuous reinforcement) results that matrix always takes part in the load carrying. In this case, the main factor determining the properties of the composite material is formed during the process of the structure connection between its components [9,[11][12][13][14][15][16][17][18][19][20]. Fig.1.…”

“…* silesiaN UNiversiTy of TechNology, iNsTiTUTe of eNgiNeeriNg MaTerials aND BioMaTerials, facUlTy of MechaNical eNgiNeeriNg, 18 a koNarskiego sTr., 44-100 gliwice, PolaND technology consisting sintering of ceramic powders with the addition of pores forming agent, disintegrating at high temperatures and creating voids and gaseous degradation products themselves by passing out of the material forming channels, through which liquid metal will flow during the infiltration process [14,[21][22][23][24][25][26][27][28][29].…”