Problem $6\mathrm{.}129$

A wood beam is reinforced with steel straps at its top and bottom as shown in the figure below $($ Eigure $1).$

Part A

Determine the maximum bending stress developed in the steel if the beam is subjected to a moment of $M=100kN*m.$ Take $E_W=10$GPa,$E_{st}=200$GPa Express your answer to three significant figures and include appropriate units.

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Part B

Determine the maximum bending stress developed in the wood

Express your answer to three significant figures and include appropriate units.

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Figure

$1$ of $1$