摘要
根据剪滞后模型及复合材料中晶须的实际分布状况 ,分析了基体的承载系数。结合 X射线应力测量原理 ,建立出基体承载系数的 X射线应力测量方法。计算表明 ,压铸态及挤压态 Si CW体积分数为 2 0 %的 60 61 Al复合材料中基体的承载系数分别为 0 .783及 0 .569。试验证实 ,两种复合材料基体承载系数分别为 0 .742及 0 .557。试验结果与理论计算基本吻合。
According to the shear lag model and the actual distribution of whisker in composites, the bearing stress factors of matrix in composites was analyzed. By using the principle of X ray stress measurement, the bearing stress factors of matrix in composites was measured. The calculation result shows that the bearing stress factors of matrix in squeeze casting and extruded vol.20%SiC W/6061Al composites were 0.783 and 0.569, respectively. The experimental result confirmed that the bearing stress factors of matrix in two kinds of composites were 0.742 and 0.557, respectively. The bearing stress factor of matrix in composites from experiment was close to that from calculation.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2000年第3期42-45,共4页
Acta Materiae Compositae Sinica
关键词
SICW/AL
晶须取向
剪滞模型
承载系数
复合材料
SiC W/Al
whisker's orientation
shear lag model
X ray stress measurement
matrix's bearing stress factor
