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Brittle vs. Ductile Fracture characteristics
ОглавлениеDuctile materials‐ extensive plastic deformation and energy absorption (“toughness”) before fracture.
Brittle materials‐ little plastic deformation and low energy absorption before fracture.
Figure 5.2 Stress–strain curve of brittle and ductile material.
Figure 5.3 Ductile vs brittle fracture. (a) Very ductile, soft metals (e.g., Pb, Au) at room temperature, other metals, polymers, and glasses at high temperature. (b) Moderately ductile fracture, typical for ductile metals. (c) Brittle fracture, cold metals, ceramics.
