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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2006, Vol. 27 ›› Issue (5): 784-788.

• 论文 • Previous Articles     Next Articles

The Outline of New Specifications on Strength of Composite Aircraft Structures

SHEN Zhen1, CHAI Ya-nan1, YANG Sheng-Chun1, ZHANG Yi-ning2, LI Guan-sheng3   

  1. 1. Aircraft Strength Research Institute of China, Xi'an 710065, China;2. Shenyang Aircraft Design Research Institute, Shenyang 110035, China;3. Chengdu Aircraft Design Research Institute, Chengdu 610041, China
  • Received:2005-04-12 Revised:2005-09-02 Online:2006-10-25 Published:2006-10-25

Abstract: The outlines of the new military airplane structural strength specifications for composite structures and the differences from those of metallic structures are presented in this paper. These characterizations are: the material and process requirements based on the diversity of property characterization and synchronous formation of materials and structures; the determination methodology of design allowables based on considering the influence of initial flaw/damage on static structural strength; static strength design and verification considering specially the hydro-thermal influence; durability design and verification based on the concept, in which static strength design could cover fatigue design, and consideration of impact damage resistance; damage tolerance design and verification based on the main flaw/damage type of impact damage and damage non-propagation concept; and the structural verification test based on Building-Block Approach consisting.

Key words: composites, strength specification, static strength, durability, damage tolerance, structural verification test

CLC Number: