L型复合材料构件拐角孔隙特征定量分析

he pores in the corner of L-shape composite components were observed and the pore morphology was quantitatively analyzed. The results are as shown. The pores are mainly distributed in the rich resin area and in the fiber layer. The pores in the rich resin area are in the majority. Pore length, width and area all increase as the porosity increase. Porosity maximum length and width variation is greater than the minimum length and width variation. With porosity becomes larger, the number of pores which are irregular increases and pore width to length ratio is reduced. But the pores which length are between 20~30 microns has always occupied the majority. When the statistical data of pores is enough, pore length and width respectively has the relationship of approximate logarithmic distribution with the number of pores.