View Policies Current Attempt in Progress A glue-laminated timber beam is reinforced by carbon fiber reinforced plastic (CFRP) material bonded to its bottom surface. The cross section of the composite beam is shown. The elastic modulus of the wood is 12.1 GPa and the elastic modulus of the CFRP is 117 GPa. The simply supported beam spans 6.6 m and carries a concentrated load Pat midspan. Assume bw=61 mm, b=45 mm, dw=260 mm and t=5 mm. (a) Determine the maximum bending stresses o,, o, produced in the timber and the CFRP if P = 5.7 kN. (b) Assume that the allowable bending stresses of the timber and the CFRP are 10.8 MPa and 1400 MPa, respectively. Determine the largest acceptable magnitude for concentrated load P. (You may neglect the weight of the beam in your calculations.) dw B L CFRP Cross section Answers: (a) o, = i MPa, o, = i MPa. (b) P = i kN.
View Policies Current Attempt in Progress A glue-laminated timber beam is reinforced by carbon fiber reinforced plastic (CFRP) material bonded to its bottom surface. The cross section of the composite beam is shown. The elastic modulus of the wood is 12.1 GPa and the elastic modulus of the CFRP is 117 GPa. The simply supported beam spans 6.6 m and carries a concentrated load Pat midspan. Assume bw=61 mm, b=45 mm, dw=260 mm and t=5 mm. (a) Determine the maximum bending stresses o,, o, produced in the timber and the CFRP if P = 5.7 kN. (b) Assume that the allowable bending stresses of the timber and the CFRP are 10.8 MPa and 1400 MPa, respectively. Determine the largest acceptable magnitude for concentrated load P. (You may neglect the weight of the beam in your calculations.) dw B L CFRP Cross section Answers: (a) o, = i MPa, o, = i MPa. (b) P = i kN.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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