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摘要
为研究纤维增强树脂基复合材料厚度方向拉伸性能,设计碳纤维增强树脂基复合材料/玻璃纤维增强树脂基复合材料(CFRP/GFRP)层合板厚度方向直接拉伸试样形状尺寸、金属加载杆粘接方法、试验参数,判断拉伸试样失效模式。结果表明:测得的复合材料拉伸强度(σ33)、拉伸模量(E33)、31方向泊松比(ν31)、32方向泊松比(ν31)、拉伸断裂应变(με)试验结果重复性良好,试验方法可行,并参加国际循环比对试验,验证方法的实验室间再现性,给出方法的精密度数据。
Abstract
In order to study the mechanical properties of the composite material in the thickness direction,the shape and size of direct tensile specimens in CFRP and GFRP unidirectional laminate thickness direction,the bonding method of metal loading rod,and test condition parameters were designed.The failure mode of tensile specimens was judged.The results shown that the tensile strength (σ33),tensile modulus (E33),31-direction Poisson's ratio (ν31),32-direction Poisson's ratio (ν32),tensile breaking strain (με) of the specimens had good repeatability.The test method was feasible,and participated in the international circular comparison test to verify the reproducibility of the method between laboratories,and given the precision data of the method.
关键词
厚度方向
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拉伸试验
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国际循环比对
Key words
thickness direction
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test method
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international cycle comparison
纤维增强树脂基复合材料厚度方向拉伸试验方法研究[J].
化工新型材料, 2022, 50(6): 188-191 DOI:10.19817/j.cnki.issn1006-3536.2022.06.037
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