Method of primers in calculating the probability of destruction of a unidirectional composite material in tension

2007 ◽  
Vol 43 (6) ◽  
pp. 561-572
Author(s):  
A. P. Marukhin
Keyword(s):  
Composite Material ◽  
Unidirectional Composite ◽  
Unidirectional Composite Material

Nonlinear Viscoelastic Analysis of a Unidirectional Composite Material

1981 ◽  
Vol 48 (4) ◽  
pp. 859-865 ◽  
Author(s):  
B. G. Schaffer ◽  
D. F. Adams
Keyword(s):  
Composite Material ◽  
Unidirectional Composite ◽  
Time Dependent ◽  
Creep Recovery ◽  
Viscoelastic Analysis ◽  
Nonlinear Viscoelastic ◽  
The Matrix ◽  
Single Integral ◽  
Unidirectional Composite Material ◽  
Composite Response

The single-integral nonlinear viscoelastic constitutive equations developed by Schapery from thermodynamic theory have been adapted to analyze the time-dependent response of a unidirectional composite material. This viscoelastic analysis has been combined with an existing time-independent elastoplastic micromechanics analysis, to permit the study of nonlinear time-dependent response of materials loaded beyond their elastic limit. Literature values as well as a brief series of creep-recovery tests on a typical epoxy resin were used to characterize the nonlinear viscoelastic response of the matrix constituent of a composite material. Composite response under transverse loading at various stress levels was then predicted, and the results compared with actual composite creep data.

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