Mathematical Problems in Engineering

Research Article

Spectral Classification of Non-Coaxiality for Two-Dimensional Incremental Stress-Strain Response

Figure 2

Non-coaxiality available by three approaches: (a) INC+P; (b) INC+NP; (c) IC+NP.
963043.fig.002a
(a) Incremental non-coaxiality with proportional loading ( 𝜃 𝑑 𝜖 ≠ 𝜃 𝑑 𝜎 = 𝜃 𝜎 )
963043.fig.002b
(b) Incremental non-coaxiality with non-proportional loading ( 𝜃 𝑑 𝜖 ≠ 𝜃 𝑑 𝜎 ≠ 𝜃 𝜎 )
963043.fig.002c
(c) Incremental coaxiality with non-proportional loading ( 𝜃 𝑑 𝜖 = 𝜃 𝑑 𝜎 ≠ 𝜃 𝜎 )