树脂基纤维增强复合材料超高应变率拉伸研究  

Tensile experimental technique for resin matrix fiber-reinforced composites at super-high strain rates

作　　者：彭刚[1] 刘原栋[1] 冯家臣[1] 曲英章[1] 高英莉[1] 

机构地区：[1]中国兵器工业集团第五三研究所,山东济南250031

出　　处：《热固性树脂》2006年第4期37-40,53,共5页Thermosetting Resin

摘　　要：通过爆炸自由膨胀实验技术,采用特殊的薄环试样,对树脂基纤维增强复合材料在超高应变率(104/s)下进行了冲击拉伸实验研究。通过自由膨胀环实验,得到了一些芳纶纤维、玻璃纤维、碳纤维等增强的树脂基复合材料在超高压应变率下的冲击拉伸试验数据,在实验中应用了简便的应变片电测技术,并优化了装药和试样环的设计。为了验证实验数据,采用LY12cz铝合金进行了不同应变率下应力-应变拉伸性能的比较。通过树脂基复合材料爆炸自由膨胀环实验的分析,对实验技术中存在的问题提出了一些建议。研究表明,爆炸自由膨胀环拉伸技术是目前获得纤维增强复合材料超高应变率力学性能的1种相当有效的实验方法。A super- high strain rate（104/s） impact tensile experimental investigation for resin matrix fiber- reinforced composite was conducted by exploding freely expanding experimental technique in which special thin ring samples were adopted. Super- high strain rate impact tensile testing data of some resin matrix composite , such as Kevlar, glass and carbon fibers reinforced composites, were obtained by freely expanding ring experiment in which shaping of explosive cylinder and design of sample rings were optimized , and resistance strain gauge measuring technique was applied. In order to validate test data, a comparison was made with LY12cz alu- minum alloy tensile stress- strain behavior at different stain rates. Some proposals for problems involved in experimental technique were put forward through resin matrix composite freely expanding ring experimental technique analysis. It showed that exploding freely expanding ring tensile technique was comparatively effective method to gain superhigh strain rate dynamic impact character of resin matrix fiber- reinforced composites at present.

关 键 词：树脂基纤维增强复合材料 拉伸实验技术 高应变率 自由膨胀环 

分 类 号：TB332[一般工业技术—材料科学与工程]