تقرير
In Situ Imaging of Parachute Textile Micro-Mechanics Under Tensile Load
| العنوان: | In Situ Imaging of Parachute Textile Micro-Mechanics Under Tensile Load |
|---|---|
| المؤلفون: | Phillippe, Cutler, Panerai, Francesco, Villafane, Laura |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | Micro-mechanics of parachute fabrics under tensile loads is studied using in situ X-ray micro-tomography. Results are presented for two nylon textiles commonly used in parachute systems, MIL-C-7020H Type III and MIL-C-44378(GL) Type II. Textiles are subjected to incremental tension using a custom apparatus that loads the fabric radially, and the microstructure is imaged sequentially at steady load conditions. Micro-tomography images are processed using learning-aided segmentation and a custom processing pipeline that tracks the locations and morphological properties of individual tows on 3-D datasets. Results are used to reconstruct tow micro-scale properties and meso-scale strains. Our findings reveal a direct relation between the fabric architecture and the meso-scale mechanics. Warp tow pretensioning during manufacturing is found to affect decrimping and the anisotropy of the textile strains. Areal porosity increase with tension is quantified and a geometric model for pore opening under incremental load is validated. Comment: 21 pages, 15 figures, to be published in AIAA Journal |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.08072 |
| رقم الأكسشن: | edsarx.2407.08072 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |