首页> 外文期刊>中国林业科技:英文版 >Shear Creep Properties for Bond Layer at Wood-CFRP Interface
【24h】

Shear Creep Properties for Bond Layer at Wood-CFRP Interface

机译:木材CFRP界面处的粘合层的剪切蠕变性能

获取原文
获取原文并翻译 | 示例
       

摘要

To know more about the bond layer’s long term properties between carbon fiber reinforced polymer(CFRP) sheets and the wood member as well as its connecting point,shear creep performance was studied using a consistent load with the Burger model.And samples were placed in dry conditions (temperature 60℃,relative humidity 90%) and wet conditions(temperature 24℃,relative humidity 45%).Results showed that the Burger model precisely simulated the bond layer’s short-term shear performance(correlative coefficient R~2≥98%). Compared to dry conditions,with wet conditions, the amount of creep was larger.Also,with an increase in thickness of the bond layer,creep deformation and stress relaxation increased.For high stress levels,a high creep rate,which could lead to a fracture of the bond layer,should be contained. Under the consideration of safety,a pressure(above 0.05 MPa) should be placed on the connection process between CFRP and wood to reduce the thickness of the bond layer.Also,in application,the shear stress level of the bond layer should be maintained within 50%of the maximum stress level.
机译:要了解碳纤维增强聚合物(CFRP)片材和木材构件之间的长期性能以及其连接点的更多信息,使用汉堡模型的一致负载研究了剪切蠕变性能。样品置于干燥中条件(温度60℃,相对湿度90%)和湿条件(温度24℃,相对湿度45%)。结果表明,汉堡模型精确地模拟了粘接层的短期剪切性能(相关系数R〜2≥98% )。与干燥条件相比,具有潮湿的条件,蠕变量较大。ASO,粘合层的厚度增加,蠕变变形和应力松弛增加。对于高应力水平,高蠕变率,这可能导致a应含有粘合层的骨折。在安全性的考虑下,应将压力(0.05MPa)放置在CFRP和木材之间的连接过程中,以降低粘合层的厚度。在应用中,应保持粘结层的剪切应力水平50%的最大应力水平。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号