在物理力学性质指标中成熟材的基本密度、气干密度、顺纹抗压强度、抗弯强度、抗弯弹性模量及冲击韧性高于幼龄材;
In physical and mechanical indexes, the basic density, air-dried density, compression strength parallel to grain, MOR, MOE and toughness of mature wood are higher than that of juvenile wood.
力学性能测试结果表明:添加稀土的富铁胎体及其金刚石复合材料的抗弯强度、冲击韧性和孔隙度均有明显的改善。
The results of mechanical test show that is bending strength, toughness against impact and void ratios can be improved after the rich iron matris is added with rare earth.
适当的微波处理和汽蒸处理使试材的抗弯强度、抗弯弹性模量和冲击韧性并不明显降低。
There was little change in the bending strength, Young's modulus and dynamic ductility of the test wood treated by microwave irradiation and steaming appropriately.
此外,变质处理对高硼低碳铁基合金硬度无明显影响,但明显提高抗弯强度和冲击韧度。
Furthermore, the modification has no obvious influence on the hardness of high boron and low carbon ferroalloy, but increases its impact toughness and bending strength obviously.
抗弯强度和抗冲击强度是普通玻璃的四倍以上。
Bending strength and shock strength are four times higher than common glass.
抗弯强度和抗冲击强度是普通玻璃的四倍以上。
Bending strength and shock strength are four times higher than common glass.
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