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摘要
采用缠绕成型工艺,成功制备了车用变宽度等截面连续纤维增强环氧树脂基复合材料板簧,从纤维质量分数、微观形貌、疲劳寿命及破损方式等方面初步分析了复合材料板簧的成型质量和疲劳寿命。结果表明,相对于阳模面,复合材料板簧阴模面具有更高的纤维质量分数,更容易出现贫胶现象。疲劳寿命实验表明,所制备的复合材料板簧疲劳寿命高达22万次以上,拉伸破坏发生在纤维质量分数较高的阴模面。
Abstract
Vehicle lightweight is a hot topic in the research and development of automotive materials and structures.Continuous fiber reinforced epoxy resin matrix composite springs with variable width were successfully prepared by winding process.The forming quality and service performance of springs were analyzed due to the fiber quality fraction,micromorphology,fatigue life and breakage model.The results shown that,compared to male surface,the female surface had higher fiber quality fraction,and was more prone to poor glue.The fatigue life test showed that the fatigue life of the springs was more than 220000 times,and the tensile failure occurred on the female surface with high fiber quality fraction.
关键词
复合材料板簧
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缠绕成型
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疲劳寿命
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轻量化
Key words
composite material leaf spring
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filament winding
/
fatigue life
/
light weight
玻璃纤维增强环氧树脂复合材料板簧缠绕成型与质量分析[J].
化工新型材料, 2020, 48(2): 169-172 DOI:
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基金资助
国家自然科学基金(51563013)
