The uniform stress condition pictured in Fig. 1-2d exists throughout
C4 O1 I, L# V$ {; L1 T( zthe length of the bar except near the ends. The stress distribution at the
7 K# I& ~1 ^. N! ?8 d- jend of a bar depends upon how the load P is transmitted to the bar. If the! j# H2 V- m' S
load happens to be distributed uniformly over the end, then the stress
8 G8 v5 {! s; N5 p3 F, cpattern at the end will be the same as everywhere else. However, it is+ x L- J9 Z @% V
more likely that the load is transmitted through a pin or a bolt, producing! l: G# @ ~# s, p
high localized stresses called stress concentrations.
1 |+ A! s5 Y1 `) X8 c2 A- _- v+ s
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