کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5022289 1469474 2017 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of the flax fibre modulus based on an impregnated quasi-unidirectional fibre bundle test and X-ray computed tomography
ترجمه فارسی عنوان
شناسایی مدول فیبر کتان بر اساس یک تست بسته نرم افزاری فیبر شبه دو طرفه اشباع شده و توموگرافی کامپیوتری اشعه ایکس
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
A procedure to identify the fibre modulus from the results of tensile tests with a quasi-UD material is presented. In quasi-UD materials fibres may be misaligned, which makes the inverted rule of mixtures not applicable for the calculation of the fibre modulus. In this paper the modulus of flax fibre is identified based on finite element modelling of quasi-UD samples, explicitly taking into account misalignment of fibres. The spatial distribution of fibre orientations in the material is measured based on X-ray computed tomography images. For each sample a voxel finite element model is constructed, using local fibre orientations to assign local material properties. In the example application of the method to the flax fibre modulus calculation, a value of 63.0 ± 1.4 GPa is obtained. This result is validated using experimental data on a truly unidirectional flax/epoxy material, which provides an estimate of 62.4 ± 2.9 GPa for the fibre modulus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 151, 20 October 2017, Pages 124-130
نویسندگان
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