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工程力学  2012 

蜂窝纸板面内平台应力表征

DOI: 10.6052/j.issn.1000-4750.2010.11.0816

Keywords: 蜂窝纸板,面内平台应力,模型,相对湿度,屈服强度

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Abstract:

面内平台应力是评估蜂窝纸板面内承载性能的重要指标,且蜂窝纸板性能极易受环境湿度的影响.该文试验分析蜂窝纸板厚度、芯层和面层对其面内平台应力的影响;基于不同相对湿度条件下蜂窝原纸的纵向屈服强度,建立了相对湿度影响的蜂窝纸板面内平台应力模型,并与试验实测数据进行比较验证.结果表明:纸板厚度和面纸性能对蜂窝纸板面内平台应力有较大影响,芯层性能对其影响较小;所建立模型能较准确地反映环境相对湿度对纸蜂窝结构材料面内平台应力的影响.借助该模型,无需大量的试验,即可估算其考虑相对湿度的面内平台应力,为蜂窝纸板的配纸和合理选用提供理论依据.

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