An E-glass fiber-thermoset polyester composite tube is carefully constructed with the objective o...
Chapter 16, Problem 16.17 Compute the longitudinal tensile strength of an aligned glass fiber-epoxy matrix composite in which the average fiber diameter and length are 0.0135 mm (0.53 x 10-4 in.) and 1.58 mm (0.062 in.), respectively, and the volume fraction of fibers is 0.33. Assume that (1) the fiber-matrix bond strength is 100 MPa (14,500 psi), (2) the fracture strength of the fibers is 3500 MPa (5 x 105 psi), and (3) the matrix stress at composite failure is...
Q4 Acomposite consists of 65% polyester resin is reinforced by continuous and aligned glass fibers. The modulus elasticity of hardened resin is 4 0 GPa and the modulus elasticity of the ibers la 52.0 GPa. Compute: a. The overall modulus elasticity of composite in the longitudinal direction parallel 04. to fiber direction b. The load carried by each matrix and iber phase, If uniaxial srss of 50 MPa is applied in longitudinal direction on the 250 mm2 cross-sectional area. c....
Question 6: A new generation of fiber-matrix composite is designed for the manufacturing of a medical examination table. It is desired to produce an aligned carbon fiber-epoxy matrix composite having a longitudinal tensile strength of 550 MPa. Calculate the volume fraction of fibers necessary if the average fiber diameter and length are 0.02 mm and 0.6 mm, respectively, the fiber fracture strength is 4.5 GPa, the fiber-matrix bond strength is 27 MPa, and the matrix stress at composite failure is...
Composite Structures Tutorial 7 (week 8) 7.1 Find the five strength parameters of a unidirectional glass/epoxy lamina with 40% fiber volume fraction. Use the properties of glass and epoxy from Table 3.1 and Table 3.2. Assume the fibers have circular cross-section and are in a square array packing. 1-52.0-$01674870 225 47 Find 208 Mechanics of Composite Materials, Second Edi Convert PO or Excel Orl Select PDF I TABLE 3.1 Typical Properties of Fibers (SI System of Units) Units Graphite Glass...
A unidirectional glass fiber-epoxy matrix composite containing 65 vol% fiber, calculate the modulus of elasticity in the longitudinal direction and the transverse direction. Epoxy has a density of 1.54 g/cm3, modulus of elasticity of 3.5 GPa, yield strength of 60 MPa, tensile strength of 95 MPa, and Poisson’s ratio of 0.33. Glass fiber has a Poisson’s ratio of 0.22.
It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.16 volume fraction of fibers. Calculate (a) the critical fiber length, and (b) the longitudinal strength of the composite (in MPa), assuming the following: (1) the average fiber diameter is 0.018 mm, (2) the average fiber length is 5.7 mm, (3) the fiber fracture strength is 2.0 GPa, (4) the fiber-matrix bond strength is 84 MPa, (5) the matrix stress at fiber failure is 27.1 MPa, (6)...
Problem 8 10 pts) A continuous and aligned fiber-reinforced composite part has cross sectional area of 300 mm2 and consists of35 vol% glass fibers and 65 vol% of a nylon 6,6 matrix. If a longitudinal tensile load of 50kN is applied to the composite, determine (a) the longitudinal modulus of elasticity of the composite, (b) the longitudinal strain in the composite, (c) the stress in each phase (fiber and matrix), and (d) the magnitude of the load carried by each...
Problem 16.15 It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.13 volume fraction of fibers. Calculate (a) the critical fiber length, and (b) the longitudinal strength of the composite (in MPa), assuming the following: (1) the average fiber diameter is 0.013 mm, (2) the average fiber length is 5.7 mm, (3) the fiber fracture strength is 3.0 GPa, (4) the fiber-matrix bond strength is 84 MPa, (5) the matrix stress at fiber failure is 18.0...
A continuous and aligned fiber-reinforced composite is to be produced consisting of 41 vol% aramid fibers and 59 vol% of a polycarbonate matrix; mechanical characteristics of these two materials are as follows: Modulus of Elasticity [GPa (psi)] Tensile Strength [MPa (psi)] Aramid fiber 131 (19 × 106) 3600 (520,000) Polycarbonate 2.4 (3.5 × 105) 65 (9425) Assume that this composite has a cross-sectional area of 320 mm2 (0.50 in.2) and is subjected to a longitudinal load of 49700 N (11200...