Study vitality and behavior of composite materials under the combined shock, cyclic and quasi-static loadings
The study of behavior of composite materials samples under combined loadings and developed and perfected technique of estimation of residual strength (vitality) panel’s samples in terms of the contact impact was carried out in Center of Experimental Mechanics.
Diagrams of dependence of the residual strength of the glass-carbon fiber sample plates and panels were presented in work. It analyzed the fracture compression. The characteristic features of the behavior of the samples at pre-contact compression and impact loading to failure. For a more detailed analysis of the failure of the samples used in compression-contact optical video system Vic-3D, the mathematical apparatus which is based on the method of digital image correlation.
Studies of the behavior of composites under quasi-static and cyclic combined actions were carried out on samples of woven fiberglass. The obtained experimental data of residual degradation properties diagrams were constructed according to the number of load cycles prior. Mechanisms of destruction was analyzed.
The paper presents the methodology of composites under impact tests and quasi-static tension, as well as an estimation of change of deformation and strength properties.
The paper suggested further ways of development of techniques associated with the experimental investigation of the behavior of composites under cyclic samples, and the impact of quasi-static loading.