摘要
发挥碳纤维板(碳板)拉伸强度的核心问题是对碳纤维板的有效锚固。该文针对碳板测试过程中存在锚具易滑脱而导致碳板测试强度低的问题,开发一种基于角度差异理论的楔形锚具,该锚具不仅能解决常规厚度(1.4 mm和2.0 mm)碳板的锚固问题,还能克服在使用加强片锚固3.0 mm厚度碳板时出现的锚具脱落的问题。从受力分析的角度解释加强片和楔形锚具的锚固基理。该楔形锚具锚固的碳板抗拉强度高达2900 MPa,远超国标GB50728-2011中对高强I级碳板的性能(2400 MPa)要求。通过这种设计,为碳纤维板的性能测试和锚具开发提供新的思路。
The key to utilize high tensile strength of carbon fiber plate( CFP) is developing a successful anchorage. This thesis aiming at the slippage between anchorage and CFP which lead to a low tensile strength,developed a wedge anchorage. The anchorage based on the theory of the angle difference which can solve not only the anchorage of thickness of thin carbon plate( 1. 4 mm and 2. 0 mm),but also solve the CFP of 3. 0 mm in thickness which often slip when using aluminum slice as anchorage. Furthermore,we have explained anchoring mechanism of the two anchorages. The tensile strength of CFP is as high as2900 MPa,which far exceeds the performance requirements( 2400 MPa) of high strength I grade CFP in the national standard GB 50728-2011. Through this design,it has provided a new thought for the test of CFP and development of anchorage.
出处
《中国测试》
北大核心
2017年第S1期166-169,共4页
China Measurement & Test
关键词
碳纤维板
加强片
楔形锚具
抗拉强度
CFP
strengthen slices
wedge anchorage
tensile strength
