In this paper the authors proposed that the term of "design allowables" should be replaced by "design values" and "allowables" as composites were used in aircraft structures.
由于复合材料的引入，应该用“设计值”和“许用值”来代替“设计许用值”。
The strengthening mechanisms and strength prediction have always been the focus of investigation, because these are critical to the design of metal matrix composites (MMCs).
复合材料的强化机制和强度预报一直是材料学的研究热点，因为这涉及到材料的组织设计问题。
A toughness design principle of fiber composites was developed.
提出了复合材料韧度设计的基本原理。
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