A rectangular plate of composite material is formed with unidirectional fibresorientated at 30 degrees to the longitudinal axis. The composite material hasproperties in the principal material directions of E₁ = 150 GN/m², E₂ = 45 GN/m²,V12 = 0.28, V21 = 0.37 and G₁2 = 75 GN/m². A stress of 60 MN/m² is applied tothe plate on the longitudinal direction? What is the strain in this direction. Give youanswer in micro-strain.Your Answer:Answer

Answered: Image /qna-images/answer/9290408d-b18c-40e9-aaec-1386e06a0a30.jpg

A rectangular plate of composite material is formed with unidirectional fibres orientated at 30 degrees to the longitudinal axis. The composite material has properties in the principal material directions of E₁ = 150 GN/m², E2 = 45 GN/m², V12 = 0.28, V21 = 0.37 and G₁2 = 75 GN/m². A stress of 60 MN/m² is applied to the plate on the longitudinal direction? What is the strain in this direction. Give you answer in micro-strain.

A rectangular plate of composite material is formed with unidirectional fibres orientated at 30 degrees to the longitudinal axis. The composite material has properties in the principal material directions of E₁ = 150 GN/m², E2 = 45 GN/m², V12 = 0.28, V21 = 0.37 and G₁2 = 75 GN/m². A stress of 60 MN/m² is applied to the plate on the longitudinal direction? What is the strain in this direction. Give you answer in micro-strain.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A thrust collar that rests on a 0.95 in. thick polymer plate supports the vertical nylon shaft. The shaft has a diameter of d = 0.30 in. The load acting on the shaft is P = 490 Ib. (a) The ultimate shear strength of the nylon shaft is 2500 psi, and a factor of safety of 3.0 with respect to shear is required. Determine the minimum thickness t required for the thrust collar. (b) The ultimate bearing strength of the polymer plate is 2300 psi, and a factor of safety of 3.4 with respect to bearing is required. Determine the minimum outer diameter Dcollar required for the thrust collar. P Thrust collar area Plate d Thrust collar- Dcollar Answer: (a) t = i in. (b) Dcollar in.
A rectangular polypropylene [E = 6,200 MPa] bar (1) is connected to a rectangular nylon [E = 1,400 MPa] bar (2) at flange B. The assembly (shown in the figure) is connected to rigid supports at A and C. Bar (1) has a cross-sectional area of A₁ = 1070 mm² and a length of L₁ = 1380 mm. Bar (2) has a cross-sectional area of A₂ = 2730 mm² and a length of L₂ = 510 mm. After two loads of P = 2.6 kN are applied to flange B, determine: (a) the forces in bars (1) and (2). (b) the deflection of flange B. A L₁ (1) P B L2 C
At an axial load of 25 kN, a 50-mm-wide by 20-mm-thick polyimide polymer bar elongates 2.8 mm while the bar width contracts 0.29 mm. The bar is 190 mm long. At the 25-kN load, the stress in the polymer bar is less than its proportional limit. Determine (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar thickness. Answers: (a) E= (b) v= (c) Athickness= i i GPa mm
How does the slenderness ratio affect the buckling behavior of columns in mechanical engineering?
Calculate the thermal strain in με.
A rectangular polypropylene [E = 6,200 MPa] bar (1) is connected to a rectangular nylon [E = 1,400 MPa] bar (2) at flange B. The assembly (shown in the figure) is connected to rigid supports at A and C. Bar (1) has a cross-sectional area of 4₁ = 1150 mm² and a length of I₁ = 1370 mm. Bar (2) has a cross-sectional area of 42 = 2950 mm² and a length of L₂ = 600 mm. After two loads of P = 4.5 kN are applied to flange B, determine: (a) the forces in bars (1) and (2). (b) the deflection of flange B. (a) F₁ = F₂ = (b) UB= i i A KN KN mm L₁ (1) P B L2 (2)
Consider the bar in Figure 2, which has cross-sectional area A = 1·10−3 m2, modulus of elasticityE = 1·1011 N/m2, and length 1 m. The bar is fixed to a wall on its left hand side. Along the left halfof the bar, x=[0 m, 0.5 m], there is a constant distributed force of l(x) = 10 kN/m. Along the righthalf of the bar, x=[0.5 m, 1 m], there is a constant distributed force of l(x) = 20 kN/m. a) Given the finite element mesh in Figure 3, consisting of two elements of equal size L = 0.5 m,sketch the associated basis functions of the mesh, and write the approximation of the displacementfunction u(x) as an expansion of these basis functions. Use u1, u2 and u3 to denote the expansioncoefficients for each node. b) The general form of the element stiffness matrix system, with nodes indexed by i and j, is givenas shown in the image of eqaution 2, where F0 and f(1) denote boundary forces at positions x = 0 and x = 1, respectively. Form the two basis functions for element 2, and evaluate the right…
The cross-sectional diameter of aluminum nail measures 1.50 mm and it is projected outward to a length of 3.50 cm horizontally from a wall. A wet raincoat having a mass of 2.60 kg is hanged on one end of the nail. Assuming the wall holds the other end of the nail, what is the vertical deflection at end of the nail where the raincoat is hanged? The shear modulus of aluminum is 2.40×101º N/m². 4.
can you help me answer this question using the figure provided? thank you.
Consider a 50 mm × 50 mm × 50 mm element of graphite-reinforced material with its ﬁbers oriented at 45◦ and constrained against deformation in the x direction. The element is heated 50◦C. What is the stress σx required to enforce this constraint and what are the strains εy, γxy, and εz?
Q2: A fiberglass composite consists of a matrix of vinyl ester and reinforcing fibers of E-glass. The volume fraction of E-glass is 30%. The density of the vinyl estiser 0.882 g/cm³, and its modulus of elasticity is 3.6 GPa. The density of E-glass is 2.6 g/cm³, and its modulus of elasticity is 76 GPa. A section of composite 1 cm by 25 cm by 2 m is fabricated with the E-glass fibers running longitudinally in the 2000 mm direction. Determine: (a) The masses of vinyl ester and E-glass fibers. (b) The density of the composite. (c) The composite modulus of elasticity in the longitudinal and the perpendicular directions of the glass fibers. (d) If the tensile strength of the glass fibers, is 1 GPA and the tensile strength of the epoxy matrix is 60 MPa, find the tensile strength of the composite in the longitudinal direction.
Determine the bulk modulus for each of the following materials: (a) rubber, Er = 0.4 ksi, nr = 0.48, and (b) glass, Eg = 8(103) ksi, ng = 0.24.