Evolution of tensile behavior on polyester-glass fibre composites thermal and sunligth degraded
Keywords:Degradation, Ageing, Tensile, Composite, Polyester, Glass fibre,
Composite materials have been subjected to moderate temperature and high sunlight doses of radiation for long periods of time. All tensile mechanical characteristics increase at moderately high temperature, in accordance with a damped increasing exponential model. Sunlight exposition yields ageing on all mechanical properties, in agreement with a damped decreasing exponential model. These mechanical properties loses in fire-resistant composites are less than standard resin composites ones. Toughness characteristics show loses stronger than strength ones.
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