混凝土材料的层裂特性

来源 :爆炸与冲击 | 被引量 : 0次 | 上传用户：fukuilover123

【摘要】

：

利用Hopkinson压杆作为实验设备,通过试件后面吸收杆上应变波形研究了混凝土材料的层裂特性.不同强度混凝土在不同加载率下的实验结果表明,混凝土层裂强度与其压缩强度以及加

【作者】

：

张磊 HU Shi-sheng 陈德兴 ZHANG Shou

【机构】

：

总参工程兵科研三所,中国科学技术大学中科院材料力学行为和设计重点实验室

【出处】

：

爆炸与冲击

【发表日期】

：

2004年期

【关键词】

：

爆炸力学层裂 Hopkinson压杆混凝土损伤

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论文部分内容阅读

利用Hopkinson压杆作为实验设备,通过试件后面吸收杆上应变波形研究了混凝土材料的层裂特性.不同强度混凝土在不同加载率下的实验结果表明,混凝土层裂强度与其压缩强度以及加载速率有关,给出了层裂强度和压缩强度以及加载率之间关系的经验公式,并指出不同加载速度下混凝土裂纹扩展方式不同是层裂强度率效应的主要原因.加载压缩波损伤的影响、重复加载实验以及多次层裂的顺序都表明,损伤对混凝土的层裂过程有重要影响.

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混凝土材料的层裂特性

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