Q1: Consider the diameter of carbon fiber is 7 um and the diameter of glass fiber is 16 um. (a) Determine the fiber volume fraction in (i) Square array of fiber packing and (ii) Triangular array of fiber packing, for fiber spacing-to-fiber diameter ratios (s/d) of 1.0, 1.25, 1.5, 1.75, and 2.0. a) Find the fiber center-to-center spacing for the ratios. b) Plot the fiber volume fractions and the center- to- center/ diameter ratios c) Explain what factors affect the fiber volume fraction d) Compare the fiber volume fraction of the two packing methods. e) What is the theoretical maximum fiber volume fraction for each of the two composites? Are they dependent on the fiber type or diameter?

Q: The first parts of the stress-strain relationships of the components of a randomly oriented…

A: Given:- The first parts of the stress-strain relationships are given for a randomly oriented…

Q: (a) Figure Q4 shows a composite body used in a certain application. Determine the centroid (x, y) of…

A: A composite crossection is given as follows

Q: below. The specimen dimensions are length=254 mm, width=12. 1.4 mm. Determine the tensile modulus…

A: solution   stress = LoadArea    area = width×thickness               = 12.7×1.4 = 17.78 mm2   to…

Q: For the the composite cross-section shown in the figure, compute the following cross-seciton…

A: The composite cross-section shown in the figure. We need to compute the cross-seciton…

Q: 3) Tensile tests are applied on two type of fibers SiC and Al2O3, their densities are respectively…

A: - Specific modulus of alumina fiber = σ(ε × ρ) Specific modulus of alumina fiber = 1500(0.4 % × 3.3)…

Q: Calculate quantity of the Reinforcing for the beam shown in figure below. A 0.3 m 3.2 m 2016 08 @…

A:

Q: For the composite body shown in Figure 3, determine the location of the centroid (7,9) relative to…

A:

Q: Determine the total area of the composite figur e . (mm^2) Determine the x coordinate of the…

A:

Q: A 3 kg sphere makes a perfectly inelastic collision with a second sphere initially at rest. The…

A: M1=3kg

Q: Two polymer bars are connected to a rigid plate at B, as shown. Bar (1) has a cross-sectional area…

A: Given, A1=1.5 in2E1=2400 ksiA2=0.832 in2E2=3110 ksiL1=16 inL2=38 inQ=8.2 kipsP=3.7 kipsR=15.6 kips

Material Selection

A wide variety of engineering applications make use of different materials, depending upon their usage. The materials used in civil engineering vary in their properties such as strength, ductility, brittleness, and creep strength. Depending upon the application and external loading conditions, an engineer must make a wise decision for material selection. A wrong decision would fail in its functionality.