挑战者号航天飞机的悲剧至今仍令人记忆犹新,再加上目前NASA在管理航天任务上存在着问题,使美国大部份空间计划处于停顿。然而人们依然相信,航天事业仍将继续前进。大量航空航天技术还在不断取得进展。下面对航空航天计划中有关的材料技术进展作一介绍。先进战术战斗机(ATF)计划美国格鲁门公司研制了世界上第一架前掠机翼的X-29研究机。尽管前掠机翼有许多优点,如机动性能优异、飞行阻力小、燃油效率高,但这一新型机翼的设计却有赖于符合气动弹性原理的材料的研制。X-29机翼是复合材料的多层结构,层的铺设致力于降低应力。气 The tragedy of the space shuttle Challenger is still a vivid reminder of the present, coupled with the current NASA mission in the management of space missions, most of the space program in the United States at a standstill. However, people still believe that the aerospace industry will continue to move forward. A large number of aerospace technologies are still making continuous progress. Below is an introduction to the progress of material technology in the aerospace program. Advanced Tactical Fighter Plane (ATF) Program The United States Grumman developed the world’s first X-29 researching front-flight wing. Although the front wing has many advantages, such as excellent maneuverability, low flight resistance and high fuel efficiency, the design of this new wing relies on the development of materials that meet the principles of aeroelasticity. The X-29 wing is a multi-layer structure of composite material that is laid to reduce stress. gas