Hygrothermal Fracture Analysis of Orthotropic Functionally Graded Materials Using 𝐽_𝑘-Integral-Based Methods

Figure 7

Normalized mixed-mode stress intensity factors versus inclination angle 𝜙 and ℎ_𝑐/ℎ: (a) mode I SIFs; (b) mode II SIFs. 𝛾_𝑥=𝛾_𝑦=𝛾_𝑥𝑦=2, 𝜔_𝑥𝑦=𝜔_𝑥𝑧=𝜔_𝑧𝑥=𝜔_𝑧𝑦=2, 𝜆_𝑥=𝜆_𝑦=𝜆_𝑧=2, 𝜅_𝑥=𝜅_𝑦=𝜅_𝑧=2, 𝜂_𝑥=𝜂_𝑦=2, 𝜌_𝑥=𝜌_𝑦=2, ℎ/𝐿=0.4, and 𝑎/𝐿=0.1.

(a)

(b)