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生物通
2月
花旗松(Douglas-fir)静态与动态弹性模量测试:压缩、弯曲及阻尼 ...
本研究针对花旗松(Douglas-fir)这一重要天然纤维增强复合材料,通过静态(压缩、三点弯曲)与动态(阻尼振动)方法系统测定其弹性模量,发现动态模量显著高于静态值(如纵向-径向动态模量达15.3 GPa),揭示了木材在高速变形下的刚度增强效应,为建筑 ...
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