Influence of extreme low temperature conditions on the dynamic mechanical properties of carbon fiber reinforced polymers

[摘要] In the current study dynamic mechanical analysis (DMA) is performed in CFRPs that have been exposed for certain periods of time to extreme low temperatures. Through experimental data arising from respective DMA tests the influence of low temperature exposure (-40 °C) on the dynamic mechanical properties is studied. DMA tests were conducted in CFRP specimens in three point bending mode at both frequency and thermal scans in order to determine the viscoelastic response of the material in low temperatures. All experimental tests were run both for aged and pristine materials for comparison purposes. The results occurred reveal that there is deterioration both on transition temperature (Tg) and storage modulus values while there is also a moderate increase in the damping ability of the tested material as expressed by the factor tanδ as the period of exposure to low temperature increases.

[发布机构] Laboratory of Advanced Materials and Constructions, Department of Mechanical Engineering, Technological Educational Institute of Thessaly, Ring Road Larissas-Trikalon, Larissa, Greece^1

[学科分类] 计算机科学（综合）

[关键词] Carbon fiber reinforced polymer;Dynamic mechanical analysis (DMA);Dynamic mechanical property;Experimental test;Low temperature conditions;Pristine materials;Three point bending;Viscoelastic response