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Thermal aging effect on the mechanical properties of polyester fiberglass composites
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نویسنده
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belaid s. ,chabira s.f. ,balland p. ,sebaa m. ,belhouideg s.
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منبع
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journal of materials and environmental science - 2015 - دوره : 6 - شماره : 10 - صفحه:2795 -2803
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چکیده
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In this work,the mechanical properties of polyester fiberglass,which is subjected to accelerated thermal aging,have been evaluated for different periods (30,60,90 and 120 days). the aging temperature was fixed to 80 °c. it has been observed that the mechanical properties of this material are strongly affected by thermal aging. as the aging time increases,the elastic modulus decreases of about 50% and the stress at break decreases of approximately 22%. this can be explained by the changes undergone by the microstructure of the matrix and by the fiber-matrix debonding and fiber degradation. the experimental results obtained by tensile test performed on test samples for the studied material are then compared with those got by numerical simulations.
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کلیدواژه
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Mechanical properties; Polyester fiberglass composite; Tensile test; Thermal aging
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آدرس
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mechanics laboratory,university amar telidji, Algeria, mechanics laboratory,university amar telidji, Algeria, symme laboratory,univ. savoie, France, mechanics laboratory,university amar telidji, Algeria, symme laboratory,univ. savoie, France
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Authors
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