Experimental set-up for and numerical modelling of bending fatigue experiments on plain woven glass/epoxy composites
Source abstract
Abstract
In general fatigue of fibre-reinforced composite materials is a quite complex phenomenon, and a large research effort is being spent on it today. Due to deficiencies in the current life prediction methodologies for these materials, composite structures are often overdesigned: large factors of safety are adopted and extensive prototype-testing is required to allow for an acceptable life time prediction. This paper presents an investigation of the fatigue performance of plain woven glass/epoxy composite materials and of the numerical modelling of these composites’ behaviour under fatigue. First the experimental setup which has been developed for bending fatigue experiments, is discussed. The materials used are plain woven glass/epoxy specimens in two configurations: [#0o]8 and [#45o]8. Experiments show that these two specimen types, although being made of the same material, have a quite different damage behaviour and that the stiffness degradation follows a different path. Next a numerical model is presented which allows one to describe the degradation behaviour of the composite specimen during its fatigue life. This model has been implemented in a mathematical software package (Mathcad TM ) and proves to be a useful tool to study the fatigue degradation behaviour of composite materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Structural Analysis of Composite Materials · Textile materials and evaluations
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References (10)
Show source-provided references
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