کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
769989 | 897439 | 2009 | 10 صفحه PDF | دانلود رایگان |
One of the many advantages in the use of composite materials in engineering structures is their resistance to fatigue. Careful component design means that complex, weight-efficient components can be produced which are “intrinsically safe” in that they have an effectively infinite fatigue life. Excessive loading and manufacturing/design details may, however, invoke a process analogous to fatigue in metal components leading to ultimate failure of the component at a load below its design limit. A somewhat qualitative analysis has shown this mechanism to result primarily due to sub-critical crack growth within the resin matrix material. Although the phenomena need further investigation, it was found that the crack growth could be suppressed by using a resin matrix with a much higher toughness. A short introduction to the use of composite materials in Formula 1 is provided along with a discussion to illustrate how the practical application of Materials Science and Fracture Mechanics principles were used to solve a potentially serious problem.
Journal: Engineering Failure Analysis - Volume 16, Issue 2, March 2009, Pages 608–617