1. The dislocation of the yielding point is explained by Cottrell's theory that the dislocation in that metal makes a solid atmosphere owing to numerous impure trespass atoms and disturbs dislocation to increase freely in the frequency, being adherean...
1. The dislocation of the yielding point is explained by Cottrell's theory that the dislocation in that metal makes a solid atmosphere owing to numerous impure trespass atoms and disturbs dislocation to increase freely in the frequency, being adhereance.
2. Plastic hinge takes place near the point under dynamic loading, and another plastic hinge appears some distance from that point in a case of a continueous applying greaterload.
3. Elastic bending waves propagate out toward (a) opposite bending part (b) unloaded part (c)plastic bendingpart (d) elastic bendingpart.
4. The propagating speed of plastic tensile wave is greater than cross wave, so plastic tensile waves get to the center before cross waves get and then the reflected plastic waves propagate on the plate surface.