玻璃钢/复合材料Issue(8)：53-60,8.
复合材料波纹褶皱区域损伤变形测量及声发射监测
DAMAGE DEFORMATION MEASUREMENT AND ACOUSTIC EMISSION MONITORING OF WAVES IN COMPOSITE MATERIALS
摘要
Abstract
In the compression tests of glass fiber composite materials which have waves,the damage evolution of glass fiber composites was studied by using the acoustic emission (AE) and digital image correlation (DIC) method.The relationship between compressive mechanical response behavior of composite materials and damage deformation field information or acoustic emission characteristic parameters was analyzed by collecting acoustic emission signals and damage deformation field information during compression test.The results show that waves have serious influence to mechanical property of composite materials.By analyzing acoustic emission signals,it is found that,as waves' ratio of width and height decrease,mechanical property of composite materials becomes worse;and in the same ratio of width and height,as waves' height increase,mechanical property of composite materials is worse.By analyzing strain field and displacement field from DIC,it is found that,in the same load increment,the maximum strain increase and the composite materials which have a wave with higher ratio of width and height have a larger increment of maximum strain.The place which is close to the middle of composite materials has a larger horizontal displacement.However,loading direction displacement is related to creak.The place which is close to creak has a larger loading direction displacement.It reflects clearly damage and deformation characteristic of composite materials by using displacement field and strain field.关键词
复合材料/波纹褶皱/声发射/数字图像相关Key words
composite materials/waves/acoustic emission/digital image correlation引用本文复制引用
赵文政,张燕南,雒新宇,庞艳荣,周伟..复合材料波纹褶皱区域损伤变形测量及声发射监测[J].玻璃钢/复合材料,2017,(8):53-60,8.基金项目
河北省教育厅重点项目(ZD2016097) （ZD2016097）
河北省自然科学基金(F2015201215) （F2015201215）
河北大学校级项目(799207217089) （799207217089）
