Research on testing methods of tensile strength for tubular composite materials and grip prototype system

According to the immature testing methods of the current high-strength tubular composite materials,the article elucidates a method of tensile strength for tubular composite materials-the whole stretch method.Through comparative analysis on the basic experiments,the author developed a special grip for overall tensile testing,while also verifying the feasibility and superiority of the grip by experiments.Thereby breaking through the bottleneck of clamping difficulty with the high-strength tubular composite strength test.Based on VB language in Windows environment,developed a tensile grip prototype system suitable for tubular composite materials.The system has four modules corresponding the four main parts of the grip,according to user needs to generate the corresponding design parameters,it can be adapted to the design of various sizes of grip for tubular composite materials,which is simple,practical,and efficient.