Figure 6.

Printing affects rate and extent of time-dependent mechanical behavior. Printed and molded GelMA cylinders (15% GelMA, 0.25% LAP) were subjected to creep testing in hydrated unconfined compression. (a) Representative strain vs time data shown for creep + recovery testing of printed cylinders. (b) Creep extent data, obtained from exponential regression of creep portion (**p < 0.01). (c) Creep rate data, obtained from exponential regression of creep portion (****p < 0.0001). (d) Recovery extent data, obtained from exponential regression of recovery portion. (e) Recovery rate data, obtained from exponential regression of recovery portion (**p < 0.01).