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2. Ceramic matrix composite - Wikipedia

   en.wikipedia.org/wiki/Ceramic_matrix_composite

   Fracture surface of a fiber-reinforced ceramic composed of SiC fibers and SiC matrix. The fiber pull-out mechanism shown is the key to CMC properties. CMC shaft sleeves. In materials science ceramic matrix composites (CMCs) are a subgroup of composite materials and a subgroup of ceramics.

3. Metal matrix composite - Wikipedia

   en.wikipedia.org/wiki/Metal_matrix_composite

   In materials science, a metal matrix composite (MMC) is a composite material with fibers or particles dispersed in a metallic matrix, such as copper, aluminum, or steel. The secondary phase is typically a ceramic (such as alumina or silicon carbide ) or another metal (such as steel [ 1 ] ).

4. Pivot element - Wikipedia

   en.wikipedia.org/wiki/Pivot_element

   A pivot position in a matrix, A, is a position in the matrix that corresponds to a row–leading 1 in the reduced row echelon form of A. Since the reduced row echelon form of A is unique, the pivot positions are uniquely determined and do not depend on whether or not row interchanges are performed in the reduction process.

5. Rotordynamics - Wikipedia

   en.wikipedia.org/wiki/Rotordynamics

   K is the symmetric bearing or seal stiffness matrix; N is the gyroscopic matrix of deflection for inclusion of e.g., centrifugal elements; q(t) is the generalized coordinates of the rotor in inertial coordinates; f(t) is a forcing function, usually including the unbalance. The gyroscopic matrix G is proportional to spin speed Ω.

6. Reinforced carbon–carbon - Wikipedia

   en.wikipedia.org/wiki/Reinforced_carbon–carbon

   Carbon fibre reinforced carbon [n 1] (CFRC [4]), carbon–carbon (C/C [2]), or reinforced carbon–carbon (RCC) is a composite material consisting of carbon fiber reinforcement in a matrix of graphite.

7. Shaft (mechanical engineering) - Wikipedia

   en.wikipedia.org/wiki/Shaft_(mechanical_engineering)

   The following stresses are induced in the shafts. Shear stresses due to the transmission of torque (due to torsional load). Bending stresses (tensile or compressive) due to the forces acting upon the machine elements like gears and pulleys as well as the self weight of the shaft. Stresses due to combined torsional and bending loads.