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采用把能产生衍射的微粒填料埋置在待测材料中的办法,就可利用χ射线衍射法来测量聚合物和增强聚合复合材料中的残余应力和作用。我们已经进行了把各种填料埋置在单轴石墨纤维/环氧复合材料中,然后测量它们的应力感应位移衍射角。χ射线测出的微粒弹性应变正比于相应的复合材料应变。与哈恩的模型相一致。结果表明应力敏感性(作用在复合材
By embedding the diffraction-capable particulate filler in the material to be measured, x-ray diffraction can be used to measure the polymer and enhance the residual stress and action in the polymeric composite. We have carried out the embedding of various fillers in uniaxial graphite fiber / epoxy composites, and then measuring their stress-induced diffraction angle of diffraction. The χ-ray measured particle elastic strain is proportional to the corresponding strain of the composite material. Consistent with Hahn’s model. The results show that stress sensitivity (acting on the composite