What are the two sandwich structures seen in laminar composite systems? Describe each briefly.
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What are the two sandwich structures seen in laminar composite systems? Describe each briefly.
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- What are the two forms of sandwich structure among laminar composite structures? Briefly describe each.Name three functions of the matrix phase in fiber-reinforced composites.State the reason for the need for a strong bond between the fibers and the matrix.Determine the maximum moment of inertia of the composite figure shown below, in mm^4.
- Breifly explain Physical Properties of Fiber-Reinforced Composite Round Rods and Bars.List three composite materials that make advantage of covalent and ionic bonding. Each material has three materials.Give some applications for glass-, carbon- and aramid- reinforced polymer composites. Briefly discuss.
- Write the three functions of the matrix phase in fiber-reinforced composites (FRPs). Briefly state the reason for the need for a strong bond between the fibers and the matrix.Compare the desired properties of the matrix and the fiber phases of the fiber reinforced composite.3 For a composite bar as shown below, what is the relation between axial deformation and thermal deformations in the bar? Cu tube (1) Steel bar (2) D d- Where, o,, o, = stresses in Cu and steel bar respectively. Coefficient of thermal expansion for Cu and steel bar respectively.
- The composite bar, firmly attached to unyielding supports, is initially stress free. What maximum axial load P can be applied if the allowable stresses are 100 MPa for aluminum and 140 MPa for steel? Bronze Steel A = 1800 mm² A = 1125 mm? E = 83 GPa %3D E = 200 GPa %3D P -450 mm- 360 mm·PROBLEM 6.56 50 mm A steel bar and an aluminum bar are bonded together as shown to form a composite beam. Knowing that the vertical shear in the beam is 18 kN and that the modulus of elasticity is 200 GPa for the steel and 73 GPa for the aluminum, determine (a) the average stress at the bonded surface, (b) the maximum stress Aluminum 25 mm Steel in the beam. 36 mmThe structural efficiency in managing bending, shear and for steel vs concrete