If Sb, is the average bond stress on a bar of diameter subjected to maximum stress , the length of the embedment is given

If Sb, is the average bond stress on a bar of diameter subjected to maximum stress , the
length of the embedment is given by

(A) l = dt/Sb

(B) l = dt/2Sb

(C) l = dt/3Sb

(D) l = dt/4Sb

The correct Answer Is
(D) l = dt/4Sb