论文部分内容阅读
随着航空工业的发展,对在具有拉伸保持载荷下高温动力构件的寿命预测,有着越来越严格的要求,而在这类构件的损坏中,蠕变-疲劳失效,占据着相当重要的位置,因而各国近几年来,对蠕变-疲劳的研究也投入了越来越多的力量。在我国,先进的蠕变-疲劳试验机,还十分缺乏,北京航空材料研究所,对苏制35型蠕变试验机进行改造,使之能进行拉-拉应力状态下的蠕变-疲劳试验,进行了可贵的尝试.长春试验机研究所,也适时开发了相应的试验设备.现将我刊编辑部采写的“新型蠕变疲劳试验机”和北京航空材料研究所苏翰生的文草“改装的蠕变-疲劳试验设备及其寿命预测”同时予以刊登,以餐读者.
With the development of the aviation industry, there is more and more strict requirements on the life prediction of high-temperature dynamic components with tensile holding load. In the damage of such components, creep-fatigue failure occupies quite important Location, and thus countries in recent years, the creep - fatigue research has also invested more and more strength. In China, the advanced creep-fatigue testing machine is still in short supply. Beijing Institute of Aeronautical Materials modified the Soviet-made 35-type creep testing machine so that it can perform the creep-fatigue test under tension-tensile stress , Carried out a valuable attempt.Changchun Testing Machine Research Institute, also developed a timely manner the appropriate test equipment.Currently, I read the editorial department to write the “new creep fatigue testing machine” and Beijing Institute of Aeronautical Materials Su Han-sheng grass “modification Creep - fatigue test equipment and life expectancy ”at the same time to be published for the meal readers.