摘要
运用轮廓迹线法测定了玻璃/环氧复合材料三点弯曲试样断面轮廓线粗糙度参数R_L及断裂能与断口表面粗糙度参数R_s的关系,实验结果指出:断面轮廓线粗糙度与填料成份、断裂性质等因素有关,与断裂能呈近似线性关系;韧断时测量值偏小,脆断时偏大,填料成份、断裂机制相同时吻合得好。
By means of profile method, the fracture surface profile roughness parameter R L of three - point bending samples of glass/epoxy composite was measured 籥nd the relation between fracture energy(energy to break point)and fracture surface roughness parameter Rs was studied-The experimental results show that the fracture surface roughness is relevantto stuffing amount and fracture model,and has an approximate linear relationship with fracture energy;the measured values are less for ductile fracture,larger for brittle one ,and coincede well with the linear relationship under the same condition of stuffing amount and fracture mechanism.
出处
《物理测试》
CAS
1996年第4期40-43,共4页
Physics Examination and Testing
基金
贵州省科学基金
关键词
玻璃
复合材料
断面
粗糙度
轮廓迹线法
glass/epoxy composite
fracture surface roughness iquantitative analysis
profile method
