比刚度是指材料的弹性模量与其密度的比值，亦称为“比模数” 或“比弹性模量”，是结构设计，特别是航空、航天结构设计对材料的重要要求之一。
... specific speed比速率 specific stiffness比刚度 specific strain energy比应变能 ...
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... 比电阻 specific resistance 比刚度 specific rigidity 比例加载 proportional loading ...
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Continuous SiC fiber reinforced titanium matrix composites (TMC) has high specific strength and stiffness, high service temperature, good anti-fatigue and creep-resistant performance and significant weight reduction effect. These advantages give it a wide prospect of application on aeroengine.
SiC连续纤维增强Ti基复合材料(TMC)的比强度和比刚度高、使用温度高、疲劳和蠕变性能好、减重效果显著,在航空发动机上有广阔的应用前景。
参考来源 - SiC·2,447,543篇论文数据，部分数据来源于NoteExpress
纤维增强树脂基复合材料是一类高比强度、高比刚度的结构材料。
The fiber reinforced resin matrix composites are a kind of structural material with high specific strength and high specific rigidity.
蜂窝夹层板具有低密度、高比强度、高比刚度以及可设计性等优点，在航空航天领域里广泛应用。
Honeycomb sandwich plate has many advantages such as low density, high strength ratio and high stiffness ratio.
虽然具有良好的比刚度、比强度，然而PMMC的低塑性和低韧性一直是阻碍其进一步应用的障碍。
Although has the good specific stiffness and specific strength. However, low plasticity and low toughness of PMMC, has been an obstacle to hinder its further application.
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