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The uniform stress condition pictured in Fig. 1-2d exists throughout
9 ?; b/ B% k: e2 M- n+ nthe length of the bar except near the ends. The stress distribution at the
K( d$ s" @9 x" ?( o# send of a bar depends upon how the load P is transmitted to the bar. If the
, B1 ]; s$ K( {load happens to be distributed uniformly over the end, then the stress8 ^3 M6 Y; X+ }
pattern at the end will be the same as everywhere else. However, it is* x0 V2 y5 X& `( y
more likely that the load is transmitted through a pin or a bolt, producing! l, n r. I2 q$ o/ S6 M. A! N
high localized stresses called stress concentrations.
: }' a! }8 `8 x# p s2 v% @$ M* V6 [0 b2 w* s1 b
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