Erratum to: SpringerPlus (2016) 5:1316 DOI 10.1186/s40064-016-2998-3

Following the publication of our article (Li et al. 2016), we have become aware that the legends of Fig. 2 and Table 2 should read as follows:

Fig. 2 Measured stress–strain curves of the steels. a Gun steels. b Other steels. b is adapted from Figure 10 in International Journal of Nonlinear Mechanics, Vol 46(3), Hertelé S, De Waele W, Denys R, A generic stress–strain model for metallic materials with two-stage strain hardening behaviour, pp 519–531, Copyright (2010) with permission of Elsevier (Hertelé et al. 2011).

Table 2 Fitting parameters of other formulas. Data for pipeline steel, TRIP steel and stainless steel are from Table 3 in International Journal of Nonlinear Mechanics, Vol 46(3), Hertelé S, De Waele W, Denys R, A generic stress–strain model for metallic materials with two-stage strain hardening behaviour, pp 519–531, Copyright (2010) adapted with permission of Elsevier (Hertelé et al. 2011).