Figure 4 | Scientific Reports

Figure 4

From: Smart surgical sutures using soft artificial muscles

Figure 4

STAM and soft tube characteristics. (A) Experimental setup to measure STAM elongation. (B) Setup to establish the STAM elongation-force relationship. (C, D) Hysteresis profiles of input (volume and pressure) and output elongation of three different STAM lengths, when supplying pressure until 1 MPa. (E, F) Same as C and D but with input pressure reaching pressure sensor limit (1.85 MPa). (G) Uniform tension distribution of a small segment of the STAM. (H) Elongation-force relationship of three different STAM lengths accompanied by the analytical modeling result (RMSE: root mean square error). (I) Setup to measure burst pressure of soft tubes and a table shows specimens’ specifications. (J) Burst pressure of three soft tube sizes.

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