3 D 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 in figure below. The elastic modulus of the wood is E= 12 GPa and the elastic modulus of the CFRP is 112 GPa. The simply supported beam spans L = 6 m and carries a concentrated load P= 3.9 kN at midspan, see figure below. L/2 Answer: 9.3333 B L/2 C If b₁ = 89 mm and b₂ = 39 mm determine: a) the modular ratio n. Enter your answer to 4 decimal places. CFRP b₁ y b2 250 mm 3 mm
3 D 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 in figure below. The elastic modulus of the wood is E= 12 GPa and the elastic modulus of the CFRP is 112 GPa. The simply supported beam spans L = 6 m and carries a concentrated load P= 3.9 kN at midspan, see figure below. L/2 Answer: 9.3333 B L/2 C If b₁ = 89 mm and b₂ = 39 mm determine: a) the modular ratio n. Enter your answer to 4 decimal places. CFRP b₁ y b2 250 mm 3 mm
Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter6: Stresses In Beams (advanced Topics)
Section: Chapter Questions
Problem 6.2.16P: A wood beam in a historic theater is reinforced with two angle sections at the outside lower corners...
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Step 1: Given data
VIEWStep 2: Calculation modular ratio and the equivalent wooden beam
VIEWStep 3: Calculation of y coordinate of equivalent wooden beam
VIEWStep 4: Calculation of y coordinate and M.O. I. of equivalent wooden beam
VIEWStep 5: Calculation of maximum bending stress in the timber
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