Experimental Observation on the Pure Torsional Ratchetting of Polycarbonate Polymer at Room Temperature

<div>Curves of peak, valley, and ratchetting strains versus number of cycles obtained in stress-controlled cyclic tests at stress rate of 1 MPa/s and with various mean stress histories: (a) 35 ⟶ 25 ⟶ 35 MPa; (b) 25 ⟶ 35 ⟶ 25 MPa.</div>

Advances in Materials Science and Engineering

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Figure 9

Figure 9: Experimental Observation on the Pure Torsional Ratchetting of Polycarbonate Polymer at Room Temperature 