
Plastic work is either dissipated immediately as heat through viscous processes or stored irreversibly as structural defects. Examples: Bending a metal spoon or molding clay. 3. Key Differences: Elasticity vs. Plasticity
: Analysis of plane stress, plane strain, and torsion in non-circular sections.
In earthquake engineering, structures are designed to deform plastically in specific zones (structural fuses) to absorb and dissipate the massive kinetic energy of an earthquake, preventing total collapse.