Abstract
Strain-controlled cyclic behavior of angle-ply CFRP laminates [±θ] at high temperature has been studied. Strain-controlled symmetric tension-compression cyclic tests for different strain rate were carried out on coupon specimens with fiber orientation θ = 45°. On the basis of the cyclic tests, the changes of maximum and minimum stress levels with cyclic straining are examined. The experimental results showed that hysteretic stress-strain response to cyclic straining appears, regardless of the strain rate. These observations reveal that the cyclic softening occurs in the angle-ply CFRP laminates tested in this study. The cyclic softening terminates rapidly and a cyclic saturation stage is reached in all the strain-controlled cyclic tests.
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