The uniform stress condition pictured in Fig. 1-2d exists throughout$ d, Q2 l( z2 [) S! C3 H! ^) |; Q# d
the length of the bar except near the ends. The stress distribution at the
0 R# [' O' l$ _ k; U4 |2 ^. Iend of a bar depends upon how the load P is transmitted to the bar. If the* x0 q6 h& m! M
load happens to be distributed uniformly over the end, then the stress
( p9 t7 i/ f3 v1 b7 Spattern at the end will be the same as everywhere else. However, it is( [& r9 d* h2 e
more likely that the load is transmitted through a pin or a bolt, producing
4 F8 D( L- {: k: {6 M& | v# Dhigh localized stresses called stress concentrations.
u5 a" r. @* Q2 j3 D0 X# ~# S2 C- X7 I9 T; `5 M
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