Actual bearing stress of matrix in the Al18B4O33 fiber/6061Al composite under uniaxial tensile loading

作者：Jiang, CH^*; Wu, JS

来源：Materials Letters, 2001, 51(3): 262-265.

DOI：10.1016/S0167-577X(01)00301-9

• Al18B4O33 fiber
• aluminum alloy
• composite
• bearing stress of matrix
• X-ray diffraction

Use of the X-ray diffraction technique to measure the bearing stress of the matrix in the composite was established. The experimental results show that the bearing stress ratio of the matrix is 0.715 and 0.537 of the total applied stress for the 25 vol.% Al18B4O33 fiber/6061Al as-cast and as-extruded composite, respectively. Due to the aligned fibers, the as-extruded composite gives rise to greater mechanical strengthening. although the aspect ratio of the fiber in the as-extruded composite is lower than that in the as-cast material. According to the shear-lag model, the bearing stress ratio of the matrix in the composite was analyzed. It was verified that. the theoretical bearing stress ratio of the matrix in the composite is agreement with the result from experiment.

• 出版日期2001-11
• 单位上海交通大学