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A study on Impact Strength of CFRP Using Infrared Thermography

机译：红外热成像CFRP冲击强度研究

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Of the advanced composite materials for aerospace structures such as aircrafts and space devices, the carbon fiber reinforced plastics (CFRP) is applied to many sectors that require lightweight materials for its high strength and stiffness. One of the disadvantages of the CFRP, however, is that it is weak against impact. In this study, impact test specimens were manufactured with five fiber stacking angles (0°/0°, 0°/15°, 0°/30°, 0°/45°, 0°/90°) according to ASTM D7136, and a falling weight test was performed to analyze the correlation between their mechanical and thermal characteristics. As a result, the impact energy applied to the five test specimens with different fiber stacking angles was almost constant at 30.63 J - 30.78 J. The absorbed energy increased with the increase in the fiber stacking angle, and decreased after 0°/45°. The average temperature on the fractured surface increased with the increase in the fiber stacking angle in all specimens other than the 0°/0° specimen.
机译：在飞机和空间装置等航空航空结构的先进复合材料中，碳纤维增强塑料（CFRP）应用于许多需要轻质材料的许多部门，以实现其高强度和刚度。然而，CFRP的缺点之一是它对抗抗冲击性弱。在本研究中，根据ASTM D7136，用五个纤维堆叠角（0°/ 0°，0°，0°/ 15°，0°/ 30°，0°/ 90°）制造冲击试样。并进行落下的重量测试以分析其机械和热特性之间的相关性。结果，施加到具有不同纤维堆叠角度的五种试样的冲击能量在30.63J-30.78 J.78J中几乎恒定。吸收能量随比纤维堆叠角度的增加而增加，并在0°/ 45°后降低。裂缝表面上的平均温度随着除0°/ 0°的所有标本中的纤维堆叠角度的增加而增加。

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