摘要
应用红外探测技术,对玻璃钢锚杆进行了单向拉伸的红外辐射实验研究,结果表明:玻璃钢锚杆拉伸过程中,其红外辐射温度随着荷载的增加而增加,弹性阶段温升变化微小,塑性阶段温升明显,尤其是临近破裂时,温度升高最快,最大温升值为0.3℃。利用玻璃钢锚杆材料的红外辐射温度特征,可以反演该种材料的锚杆与围岩相互作用过程中的应力、应变以及变形等力学性质。
The Infrared radiation experiments on FRP bolt in the process of loading were carried out.The result showed that the infrared radiation temperature（IRT） of FRP bolt rose with increase of loading.The IRT increased small at the stage of elastic and obviously during plastic stage.In particular,the IRT rose quickly while approached fracture.The maximum rose 0.3℃.The IRT characteristics can be used to analyse the stress,strain and deformation in the process of FRP bolt and rock interaction.
出处
《激光与红外》
CAS
CSCD
北大核心
2007年第9期860-862,共3页
Laser & Infrared
基金
国家自然基金(No.50374069)
国家重点基础研究发展(973)项目(No.2002CB412701)资助
关键词
玻璃钢锚杆
红外热像
辐射温度
FRP bolt
infrared thermal image
radiation temperature
