零膨胀材料对提高航空航天结构和电子设备等的热几何稳定性有重要意义。
Materials with zero thermal expansion coefficients benefit to improve the geometrical stabilities of aeronautic and astronautic structures and electric equipment under great temperature changes.
快速凝固铝铿合金是一种低密度、高强度、高弹性模量的引人注目的新型航空航天结构材料。
Rapidly solidified aluminum-lithium alloys are conspicuous aeronautic and astro- nautic structural materials with low density, high strength and high modulus of elasticity.
基于带状屈服模型的数字仿真方法在航空航天结构上已经开展运用，但尚未用于潜艇结构疲劳断裂问题。
The numerical simulation method based on the strip-yield method has begun to be used in the air space structures, but not used in the fatigue questions in the submarine.
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