\(d\) |
Diameter of the specimen |
\(\varepsilon_{N-D}\) |
Dynamic
necking onset true strain in isothermal conditions |
\(d_{0}\) |
Initial diameter of the specimen |
\(\varepsilon_{N-DT}\) |
Dynamic necking onset true strain at variable T |
\(F\) |
Force acting on the specimen |
\(\varepsilon_{N-S}\) |
Necking
onset true strain in quasi-static conditions and constant
temperature |
\(K,n\) |
Hollomon equation parameters |
\(\varepsilon_{N-T}\) |
Necking onset true strain in quasi-static conditions and variable
temperature |
\(R\) |
Strain rate amplification of the equivalent stress |
\(\varepsilon_{\text{true}}\) |
True strain |
\(S\) |
Thermal softening |
\({\dot{\varepsilon}}_{\text{true}}\) |
True
strain rate |
\(T\) |
Temperature |
\(\sigma_{\text{Eq}}\) |
Equivalent
stress |
|
|
\(\sigma_{Eq-S}\) |
Equivalent stress in a static
test |
|
|
\(\sigma_{\text{true}}\) |
True stress |
|
|
\(\sigma_{\text{yield}}\) |
Yield stress |