1.

The relations proposed by Marshall for bond stress are given as:

A. (τ <sub>bp</sub>)x = (τ <sub>bp</sub>)<sub>max</sub>e<sup>-4ψx/ϕ</sup>
B. (τ <sub>bp</sub>)x = (τ <sub>bp</sub>)<sub>max</sub>e<sup>-4ψx</sup>
C. (τ <sub>bp</sub>)x = (τ <sub>bp</sub>)<sub>max</sub>e<sup>-4ψ</sup>
D. (τ <sub>bp</sub>)x = (τ <sub>bp</sub>)<sub>max</sub>e<sup>-4</sup>
Answer» B. (‚âà√¨‚àö√´ <sub>bp</sub>)x = (‚âà√¨‚àö√´ <sub>bp</sub>)<sub>max</sub>e<sup>-4‚âà√¨‚àö‚Ćx</sup>


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