Structural Steel
- ductile
- large deformations
- distinct yield plateau
elastic elasto-plastic plastic
Plastic Hinge
Failure Mechanism
- structural form that cannot support a load
- large, unbounded displacements
collapse load — smallest load that will cause a failure mechanism
plastic analysis — adding enough plastic hinges to an initially stable structure to form a failure mechanism
Dowel Connections ≠ Beams
more complex
crushing of wood fiber + plastic hinge(s)
yield limit instead of collapse load