Experimental Study On Carbon Fiber Composite Members Under Axial Compressive Force

Carbon fiber composites, with greatly improved corrosion resistance and durability, low weight and high strength, ease of transportation, and lower energy consumption during manufacture, are about to become an important part of the engineer's response to the construction challenges of the new century. The introduction of carbon fiber composites, more appropriately referred to as Carbon Fiber Reinforced Polymers (CFRP) into civil engineering creates the opportunity for a new and innovative approach to structures, especially some special framework. The concept combines the compression capability of core materials with the high strength & low weight characteristics of carbon fiber composites.Based on the experimental study on the behavior of carbon fiber composites members with different parameters under axial compressive force, a discussion is presented on the technics design method and the behavior of axial compression. A calculation method on axial bearing capacity of carbon fiber composites members is put forward. The main content and achievements of the paper are briefly summarized as following:1, The performance of CFRP members is concerned with the colophony, core material and technics. Designing the members must consider the material design, frame design and technics design. Carbon fiber composites members can be combined in a very efficient way to produce a new type of composite component that outperforms traditional components in a number of areas.2, Based on the tests of fifty CFRP members and two timbers, we find that the failure modes of Carbon fiber composites members are mostly brittle destruction. The behavior of this type of component is affected by several parameters, including wrapped way of CFRP, rations of CFRP and mechanical behavior of core material.3, A kind of method for calculating the strength and bearing capacity of Carbon fiber composites members is put forward. The finite element method is used in studying the behavior of the CFRP member under axial compressive force. The computing results fit with test one.