Nomenclature Nomenclature Nomenclature Nomenclature
\(d\) 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