Figure 9
From: Laser cavitation rheology for measurement of elastic moduli and failure strain within hydrogels
Model fits to measured cavitation bubble dynamics in PEG (600) DA hydrogels. Model-predicted cavitation bubble dynamics using the best parameter fits and experimental data points in PEG (600) DA hydrogels. (a) 6% PEG (600) DA gel model fits predicted by Ep = 2 µJ (Rmax = 69 µm, η = 27 kPa, εf,rr = 0.24, εf,θθ = 0.2), Ep = 5 µJ (Rmax = 111 µm, η = 22 kPa, εf,rr = 0.14, εf,θθ = 0.09), and Ep = 12 µJ (Rmax = 149 µm, η = 20 kPa, εf,rr = 0.12, εf,θθ = 0.07) and (b) 7% PEG (600) DA hydrogel model predictions evaluated from Ep = 2 µJ (Rmax = 64 µm, η = 32 kPa, εf,rr = 0.37, εf,θθ = 0.5), Ep = 5 µJ (Rmax = 100 µm, η = 39 kPa, εf,rr = 0.24, εf,θθ = 0.19), and Ep = 12 µJ (Rmax = 135 µm, η = 50 kPa, εf,rr = 0.25, εf,θθ = 0.20). The bubble dynamics model predictions are shown by the dashed curves while the experimental data are shown by the symbols. ○, ×, and □ symbols correspond to cavitation dynamics produced by laser pulse energies of Ep = 2, 5, and 12 µJ, respectively. Prepared using MATLAB R2019b and Adobe Illustrator CS6.
