Figure 3 | Scientific Reports

Figure 3

From: Guided fracture of films on soft substrates to create micro/nano-feature arrays with controlled periodicity

Figure 3

Optimal conditions for intact crack formation depend on structures of notches and strain rates.

(a) A branched crack formed on samples with paired notch features. (b) A disconnected crack on samples with un-paired notch features. (c) Only single, intact cracks form on samples with alternating notch features. (d) Intact cracks formation increases at lower strain rates ( ~ 0.1/s, 0.01/s and 0.001/s). Scale bar: 250 μm.

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