When the beam with rectangular section is bent, in the neutral axis of the cross section ( ).
A、Normalstressesaremaximum,shearstressesarezero;;
B、Shearstressesaremaximum,normalstressesarezero;;
C、Bothnormalstressesandshearstressesaremaximum;;
D、Bothnormalstressesandshearstressesarezero.
发布时间：2025-07-23 18:04:20
