Problems in the prediction of the long-term strength of polymer materials. A review

Adamovich, A. G.; Urzhumtsev, Yu. S.

doi:10.1007/bf00605875

Cited by 5 publications

(2 citation statements)

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“…The basic relations for durability are formulated in terms of the activation energy of rupture and the stress applied [ 1 ]. The parameters of the formulas present the macroscopic characteristics of the material and depend on the microscopic quantities and the random distribution of loads on load-carrying bonds [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Calculation of damage and of force relaxation in amorpho-crystalline polymers

Mukanova¹,

Junisbekov²

1999

Mech Compos Mater

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The dynamics of damage and of the relaxing force in amorpho-crystalline polymers under constant strain are calculated using the formulas for the probability of rupture of a deformed polymer molecule and a model representation of amorphous interlayers. The main parameters of the model are the maximum and minimum possible deformations of molecular chains, the energy of rupture activation, the function of the chain length distribution, the temperature, the macroscopic strain, and the relative dimensions of the amorphous interlayer. The conformity of the theoretical model and the association of the relaxation spectrum with the internal molecular and structural characteristics of the material are established.

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Section: Introductionmentioning

confidence: 99%

“…Investigations dedicated to the failure of polymers in long-term loading presently constitute a separate trend in the mechanics of solids [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%