AbstractAn analysis is given of the forceFrequired to pull an adhesive tape of unit width away from a rigid substrate in terms of the strengthGaof adhesion, the tensile modulusEof the tape, and its thicknesst. Measurements are reported for several commercial adhesive tapes and compared with the predictions of the theory. Excellent agreement is obtained, suggesting that the theory is basically correct. Attention is drawn to the unusual form of the dependence of the failure forceFupon the workGaof detachment and the resistanceEtof the tape to stretching in this case:F4∝EtG a3. Even though the tape is assumed to be linearly elastic, the markedly nonlinear (cubic) relation between forceFand displacement δ of the tape away from the substrate leads to this unusual result. Differences observed inGafrom pull‐off and from 90° peeling experiments are tentatively attributed to additional energy losses in the latter case due to the severe bending deformations imposed on the tape as it is peel
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