关键词: 三维机织结构, T字型复合材料, 弯曲性能, 玄武岩长丝束, 梁高

Abstract:

For exploring the bending properties of T-shaped three-dimensional integrated woven composites with different beam depths, by reasonable design, three kinds of T-shaped three-dimensional integrated woven fabrics with different high beam depths are woven from basalt fiber filaments on a common loom with low cost. The T-shaped three-dimensional integrated woven composites with different beam depths were produced by vacuum assisted resin transfer molding. Then, the compesites were tested by na electronic rniversal testing machine, and the load-displacement curves and absorption energy-displacement curves were obtained. Results showed that the higher the beam depth, the greater the values of the load and absorbed energy on the composites. The T-shaped three-dimensional integrated woven fabrics with different high beam depths showed different bending failure patterns. The results indicated that the bending load, energy absorption and failure pattern of the T-shaped three-dimensional integrated woven composites were significantly affected by the beam depth.

Key words: three-dimensional woven structure, T-shaped composite, bending properties, basalt fiber filaments, beam depth