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Effects of EB irradiation on Stress-Strain Curves for Carbon Fiber Reinforced Composite Materials

机译:EB辐照对碳纤维增强复合材料应力-应变曲线的影响

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摘要

In order to evaluate influence of electron beam (EB) irradiation on elasticity and stress- strain curve of composite materials reinforced by carbon fiber (CF), carbon fiber reinforced polymer (CFRP) and carbon fiber reinforced graphite (C/C) were treated by EB irradiation of 0.3 MGy. Since the EB strengthening was mainly dominated by the ductility enhancements of carbon fiber and matrix of epoxy resin, EB irradiation enlarged fracture stress and enhanced fracture strain of CFRP. Furthermore, EB irradiation slightly enhanced bending elasticity of CFRP and largely enhanced the initial spring constant related to elasticity of C/C coil. Although the elasticity enhancement of carbon fibers did not largely contribute that of CFRP, that of treated graphite matrix in C/C mainly caused the C/C coil elasticity enhancement by EB irradiation. Such a new treatment is a dream-worthy technology for structural materials to be applied in the fields of future engineering.
机译:为了评估电子束(EB)辐照对碳纤维(CF)增强复合材料的弹性和应力-应变曲线的影响,对碳纤维增强聚合物(CFRP)和碳纤维增强石墨(C / C)进行了处理。 EB辐射为0.3 MGy。由于EB增强主要由碳纤维和环氧树脂基体的延展性增强决定,因此EB辐照扩大了CFRP的断裂应力并增强了断裂应变。此外,EB辐射稍微增强了CFRP的弯曲弹性,并大大增强了与C / C线圈弹性相关的初始弹簧常数。尽管碳纤维的弹性增强对CFRP的贡献不大,但C / C中处理过的石墨基体的弹性增强主要是由于EB辐射导致C / C线圈的弹性增强。对于用于未来工程领域的结构材料来说,这种新的处理方法是一项梦dream以求的技术。

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