Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 12, Problem 26CQ
To determine
The matrix material of concrete used with the reinforcement of particles aggregated size ranging from fine sand to coarse rocks.
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The area of the concrete in compression plus the area of reinforcement transferred on the basis of modular ratio, is called
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4. For the composite block shown, determine (a) the value of h if the portion of the load carried by
the aluminum plates is half the portion of the load carried by the brass core, (b) the total load if
the stress in the brass is 80 Mpa.
P
Rigid end plate
Aluminum Plates
(E=70 GPa)
Brass Core
(E=105 GPa)
40 mm
I
h
60 mm
300 mm
Chapter 12 Solutions
Materials Science And Engineering Properties
Ch. 12 - Prob. 1CQCh. 12 - Prob. 2CQCh. 12 - Prob. 3CQCh. 12 - Prob. 4CQCh. 12 - Prob. 5CQCh. 12 - Prob. 6CQCh. 12 - Prob. 7CQCh. 12 - Prob. 8CQCh. 12 - Composite _________ is produced by laying fibers...Ch. 12 - Prob. 10CQ
Ch. 12 - Prob. 11CQCh. 12 - Prob. 12CQCh. 12 - Prob. 13CQCh. 12 - Prob. 14CQCh. 12 - Prob. 15CQCh. 12 - Prob. 16CQCh. 12 - Prob. 17CQCh. 12 - Prob. 18CQCh. 12 - Prob. 19CQCh. 12 - Prob. 20CQCh. 12 - Prob. 21CQCh. 12 - Prob. 22CQCh. 12 - Prob. 23CQCh. 12 - Prob. 24CQCh. 12 - Prob. 25CQCh. 12 - Prob. 26CQCh. 12 - Prob. 27CQCh. 12 - Prob. 28CQCh. 12 - Prob. 1ETSQCh. 12 - Prob. 2ETSQCh. 12 - Prob. 3ETSQCh. 12 - Prob. 4ETSQCh. 12 - Prob. 5ETSQCh. 12 - Prob. 6ETSQCh. 12 - Prob. 7ETSQCh. 12 - Prob. 8ETSQCh. 12 - Prob. 9ETSQCh. 12 - Prob. 10ETSQCh. 12 - In Example Problem 12.1, a uniaxial composite...Ch. 12 - Prob. 12.2PCh. 12 - Prob. 12.3PCh. 12 - Prob. 12.4PCh. 12 - Prob. 12.5PCh. 12 - Prob. 12.6PCh. 12 - Estimate the transverse tensile strength of the...Ch. 12 - Prob. 12.8PCh. 12 - Prob. 12.9PCh. 12 - Prob. 12.10PCh. 12 - Prob. 12.11PCh. 12 - Prob. 12.12PCh. 12 - Prob. 12.13PCh. 12 - Prob. 12.14PCh. 12 - Prob. 12.15PCh. 12 - Prob. 12.16PCh. 12 - Prob. 12.17P
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- The composite bar is stress-free before the axial loads P, and P, are applied. Assuming that the walls are rigid, calculate the stress (MPa) in each material if P1 = 150 kN and P2 = 90 kN Aluminum A = 900 mm A = 2000 mm A = 1200 mm? E = 70 GPa | E= 200 GPa Steel Bronze E = 83 GPa P1 500 mm 250 mm' 350 mmarrow_forwardEstimate the transverse tensile strength of the concrete in Problem 12.6.arrow_forwardComposite _________ is produced by laying fibers in random directions in a plane.arrow_forward
- Determine the y-bar centroid of the composite figure shown. Where: y = 18mm and x = 9 mmShow your solution and round off if possiblearrow_forwardQ1/ Acolumn of rainforced concrete has steel reinforcing rods running through its entire length and parallel to the column axis. If concrete has (E) of 15GPa and tensile strength of 2.8 MPa and the steel rods has (E) of (210) GPa and tensile strength of(400) MPa Determine the modulus of elasticity and tensile strength of composite if the steel rods occupy 10% of cross-sectional area of the column at: E = ? 1. applied load parallel to rods 2. applied load at right angle to rods 3. applied load at 45° to rods 8...2 Earrow_forwardWhich one of the following reinforcing geometries offers the greatest potential for improving strength and stiffness in the resulting composite material? a) flakes. Ob) particles. O c) discontinuous fibers. O d) continuous fibersarrow_forward
- The composite bar is stress-free before the axial loads P1 and P2 are applied. Assuming that the walls are rigid, calculate the stress in each material if P1 = 150 kN and P2 = 90 kN. %3D Aluminum Steel Bronze A = 900 mm| A = 2000 mm| A = 1200 mm? E = 83 GPa E = 70 GPa | E = 200 GPa P1 500 mm '250 mm' 350 mmarrow_forwardThe deformation caused by the load remaiming on the concrete for a long period of time is called .......-AJ.arrow_forwardFor the composite bar indicated, determine the permissible bending moment when the bar is bent about a vertical axis. Aluminum stress is 100 %3D MPa, Brass stress is 160 MPa, Eb = 105 GPa, Ea = 70 GPa Brass 6 mm Aluminum 30 mm 6 mm -30 30 mmarrow_forward
- 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·arrow_forwardA FRP composite includes 40% continuous and aligned Aramid fibers by vol-ume. The moduli of elasticity of the Aramid fibers and the epoxy resin matrix are 130 and 3.9 GPa, respectively. a. Compute the modulus of elasticity of the composite in the longitudinal and transverse directions. b. If the composite cross-sectional area is 150 mm' and a stress of 40 MPa is applied in the longitudinal direction, compute the load carried by the fibers and the matrix. c. Determine the strain sustained by each of the phases when stress in part (b) is applied.arrow_forwardThe composite bar, firmly attached to unyielding supports, is initially stress free. What maximum axial load P can be applied if the allowable stresses are 80 MPa for aluminum and 144 MPa for steel? Steel Aluminum A = 1125 mm2 E = 70 GPa A = 1800 mm? E = 200 GPa 450 mm- 360 mm-arrow_forward
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