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Fatigue analysis polymers

Although a great amount of work has been devoted to the analysis of the influence of molecular variables on the fatigue resistance of polymers, little work has addressed the influence of molecular variables in stress cracking environments. [Pg.126]

Altstadt V, Loth W, Schlarb A (1996) Comparison of fatigue test methods for research and development of polymers and polymer composites. In Cardon AH, Fuduka H, Reifsnider KL (eds) Progress in Durability Analysis of Composite Systems. Balkema, Rotterdam, pp 75-80... [Pg.151]

Typical features of the spectra of polymers are the changes introduced when the polymer chains are oriented by strain. When observed with polarized radiation the changing orientation of the molecular chains is visible by pleochromism of the infrared bands or the changes of the polarizability in the Raman spectra. Stress relaxation and the effects of fatigue and fracture may be observed, especially when the spectral subtraction technique is applied. These methods are well described by Siesler and Holland-Moritz (1980). In the Atlas of polymer and plastics analysis by Hummel and Scholl (1991) the methods of polymer analysis are described exhaustively and the spectra of plastic material and its constituents are collected. [Pg.195]

Dynamic mechanical tests have been widely applied in the viscoelastic analysis of polymers and other materials. The reason for this has been the technical simplicity of the method and the low tensions and deformations used. The response of materials to dynamic perturbation fields provides information concerning the moduli and the compliances for storage and loss. Dynamic properties are of considerable interest when they are analyzed as a function of both frequency and temperature. They permit the evaluation of the energy dissipated per cycle and also provide information concerning the structure of the material, phase transitions, chemical reactions, and other technical properties, such as fatigue or the resistance to impact. Of particular relevance are the applications in the field of the isolation of vibrations in mechanical engineering. The dynamic measurements are a... [Pg.273]

Experimental and Theoretical Investigation of the Contact Fatigue Behaviour of an Epoxy Polymer 57 Theoretical analysis of the location and orientation of cracks... [Pg.57]


See other pages where Fatigue analysis polymers is mentioned: [Pg.302]    [Pg.70]    [Pg.458]    [Pg.81]    [Pg.154]    [Pg.139]    [Pg.154]    [Pg.93]    [Pg.439]    [Pg.153]    [Pg.157]    [Pg.190]    [Pg.885]    [Pg.62]    [Pg.143]    [Pg.3010]    [Pg.442]    [Pg.205]    [Pg.106]    [Pg.454]    [Pg.67]    [Pg.68]    [Pg.282]    [Pg.530]   
See also in sourсe #XX -- [ Pg.153 ]




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