4 ms·
It'd be a material engineering feat to get the required plasticity and tensile strength out of ceramics. The plasticity is probably more worrying in practice -
by ThrustVectoring 7y ago
It'd be a material engineering feat to get the required plasticity and tensile strength out of ceramics. The plasticity is probably more worrying in practice - the failure mode of rebar rusting is usually visible to inspection and slow enough that action can be taken to ensure that the structure remains safe. The failure mode of a brittle reinforcing member suddenly failing is much more worrying from a safety perspective.
- ggcdn 7y agoIn structural engineering we call this plasticity "ductility", but you're exactly right. We want ductile failures not sudden brittle ones, and that can only be achieved with yielding reinforcing. Ceramics generally will fail brittly, or cause the concrete to crush if the member is over-reinforced.
- dustfinger 7y ago> the failure mode of rebar rusting is usually visible to inspection and slow enough that action can be taken to ensure that the structure remains safe. The failure mode of a brittle reinforcing member suddenly failing is much more worrying from a safety perspective. That is an excellent point!