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利用MTS万能试验机和Instron落锤冲击系统分别研究了单束玄武岩纤维增强复合材料(单束BFRP)在室温(25℃)下的准静态(应变速率为(1/600)s~(-1))力学性能及不同温度(-25,0,25,50,75,100℃)、应变速率(40,80,120,160s~(-1))下的力学性能.结果表明:单束BFRP的拉伸力学性能与应变速率、温度具有相关性.在室温下,随着应变速率的增加,单束BFRP的弹性模量、破坏强度、峰值应变、最大应变和韧性均有不同程度的增大;在相同的应变速率(40s~(-1))下,随着温度的升高,弹性模量、破坏应力和冲击韧性先增大后减小,峰值应变和最大应变先减小后增大.
The quasi-static behavior of single-bundle basalt fiber reinforced composites (single-beam BFRP) at room temperature (25 ℃) (strain rate of (1/600) s ~ (-1) )) Mechanical properties and the mechanical properties at different temperatures (-25,0,25,50,75,100 ℃) and strain rates (40,80,120,160s -1) .The results show that the tensile mechanical properties of single bundle BFRP And the strain rate and temperature are related.With the increase of strain rate, the elastic modulus, breaking strength, peak strain, maximum strain and toughness of BFRP are all increased to different extents at room temperature. Under the same strain (40s -1), the elastic modulus, failure stress and impact toughness first increased and then decreased with the increase of temperature, the peak strain and the maximum strain first decreased and then increased.