Destruction Of Fiber Composite Material Under Long Term Cycle Deformation
Journal Title: Հայաստանի գիտությունների ազգային ակադեմիայի տեղեկագիր․ Մեխանիկա - Year 2006, Vol 59, Issue 3
Abstract
Researched the laminar composite materials failure mechanism under the static short-term and cyclic long- term loading. The analysis reasoning on the results of extensive experimental studies of strength, deformability and failure of glass-fiber, black-reinforced and organoplast materials under the stipulation that low-cycle and high- cycle fatigue are under the stretching, pressuring, symmetric stretching-pressuring cycle, simple bending and interlaminar shift. Considered the impact of symmetrical cut stress concentrator and central round outlet into the process of material development of failure. Studied the characteristics of crack birth process, their accumulation and extension depend upon the structure of armoured composite material and loading direction. Described three stage of fatigue crack beginning and spreading which is in aggregate bring to damage of composite. Discussed the questions of fibrous composite damaging empirical model considering the major characteristics of strained state and cyclic warping duration.
Authors and Affiliations
N. E. Sargsyan, N. N. Sargsyan
Keywords
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