Noncontact Ultrasonic Evaluation of Metal Matrix Composite Plates and Tubes

2009 ◽  
pp. 216-216-11
Author(s):  
RW Reed
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Composite Plates ◽  
Ultrasonic Evaluation

The Effects on Critical Load of Metal-Matrix Composite Plates With a Hole Under In-Plane Loadings

2001 ◽  
Author(s):  
F. Okumuş ◽  
A. Turgut
Keyword(s):  
Critical Load ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Numerical Solutions ◽  
Fibrous Composite ◽  
Plate Thickness ◽  
Mathematical Formulation ◽  
Shear Deformation Theory ◽  
Composite Plates

Abstract Metal-matrix composite plates consists of several layers of unidirectionally reinforced, fibrous composite laminae which have different in-plane orientations and are bonded together in a certain stacking sequence. Thus, they provide new materials with superior properties of high strength and stiffness. This study deals with analysis of rectangular metal-matrix composite laminates with circular holes under in-plane static loadings. The first-order shear deformation theory is employed in mathematical formulation. The effects on critical load by hole size, ply lamination geometry, plate thickness ratio, loading types and material modulus ratio have been investigated. The finite element method is used for finding critical loads. Numerical solutions are given in graphical forms.

TEM examination of 2014-SiC metal matrix composite

1988 ◽  
Vol 46 ◽  
pp. 726-727
Author(s):  
M. G. Burke ◽  
M. N. Gungor ◽  
P. K. Liaw
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Tensile Deformation ◽  
Microstructural Characterization ◽  
Thin Foil ◽  
Matrix Alloy ◽  
Matrix Composites ◽  
Ion Milling

Aluminum-based metal matrix composites offer unique combinations of high specific strength and high stiffness. The improvement in strength and stiffness is related to the particulate reinforcement and the particular matrix alloy chosen. In this way, the metal matrix composite can be tailored for specific materials applications. The microstructural characterization of metal matrix composites is thus important in the development of these materials. In this study, the structure of a p/m 2014-SiC particulate metal matrix composite has been examined after extrusion and tensile deformation.Thin-foil specimens of the 2014-20 vol.% SiCp metal matrix composite were prepared by dimpling to approximately 35 μm prior to ion-milling using a Gatan Dual Ion Mill equipped with a cold stage. These samples were then examined in a Philips 400T TEM/STEM operated at 120 kV. Two material conditions were evaluated: after extrusion (80:1); and after tensile deformation at 250°C.

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