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Advances in Strain Gauge Measurement on Composite Materials

机译:复合材料应变片测量的进展

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This article gives an overview on the application of strain gauge techniques to the analysis of the strains in composite materials. The orthotropic behaviour of the composite influences the performance of strain gauges that are calibrated for use on isotropic materials. The article considers therefore the typical topics of the strain gauge technology applied to composites with particular reference to the compensation of thermal output, the measurement of the coefficients of thermal expansion, the determination of the strain and stress state, the influence of the misalignment error, the reinforcement effect, the determination of the stress intensification factor, the analysis of residual stresses by the hole drilling method and the effect of transverse sensitivity on the measurement of strains along the fibres.
机译:本文概述了应变仪技术在复合材料中的应变分析中的应用。复合材料的正交各向异性行为会影响经校准用于各向同性材料的应变仪的性能。因此,本文考虑了应用于复合材料的应变仪技术的典型主题,特别涉及热输出的补偿,热膨胀系数的测量,应变和应力状态的确定,未对准误差的影响,增强效果,确定应力增强因子,通过钻孔方法分析残余应力以及横向灵敏度对沿纤维应变的测量的影响。

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