کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1466120 | 1509918 | 2013 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Damage analysis and fracture toughness evaluation in a thin woven composite laminate under static tension using infrared thermography Damage analysis and fracture toughness evaluation in a thin woven composite laminate under static tension using infrared thermography](/preview/png/1466120.png)
This work deals with the issue of damage growth in thin woven composite laminates subjected to tensile loading. The conducted tensile tests were monitored on-line with an infrared camera, and tested specimens were analysed using Scanning Electron Microscopy (SEM). Combined with SEM micrographs, observation of heat source fields enabled us to assess the damage sequence. Transverse weft cracking was confirmed to be the main damage mode and fiber breakage was the final damage leading to failure. For cracks which induce little variation of specimen stiffness, the classic “Compliance method” could not be used to compute energy release rate. Hence, we present here a new procedure based on the estimation of heat source fields to calculate the energy release rate associated with transverse weft cracking. The results are then compared to those computed with a simple 3D inverse model of the heat diffusion problem and those presented in the literature.
Journal: Composites Part A: Applied Science and Manufacturing - Volume 53, October 2013, Pages 75–87