Because of their very large molecular weight (~ 10 6) polymers behave differently from the low molecular weight metals during plastic deformation leading to a ductile fracture. The top diagram shows a ...

Plastic deformation of materials does not occur under the application of a pure hydrostatic stress. A general stress tensor may be decomposed into a hydrostatic stress tensor (yellow) plus a ...

Anthony Seret, of France's Laboratoire Lagrange at the Université Côte d'Azur, suggest that both plastic deformation and fragmentation of chondrules can occur at low collision velocities.