کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4921261 1429336 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of elastic modulus for hollow spherical shells via resonant ultrasound spectroscopy
ترجمه فارسی عنوان
تعیین مدول الاستیک برای پوسته های کروی توخالی از طریق طیف سنجی اولتراسوند رزونانس
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The elastic property of a capsule is one of the essential parameters both in engineering applications and scientific understanding of material nature in inertial confinement fusion (ICF) experiments. The axisymmetric frequency equation of an isotropic hollow two-layer sphere is deduced by three dimension elasticity theory and global matrix method, and a combined resonant ultrasound spectroscopy(RUS), which consists of a piezoelectric-based resonant ultrasound spectroscopy(PZT-RUS) and a laser-based resonant ultrasound spectroscopy(LRUS), is developed for determining the elastic modulus of capsule. To understand the behavior of natural frequencies varying with elastic properties, the dependence of natural frequencies on Young's modulus and Poisson's ratio are calculated numerically. Some representative polymer capsules are measured using PZT-RUS and LRUS. Based on the theoretical and experimental results, the Young's moduli of these capsules are measured accurately with an uncertainty of ∼10%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 117, April 2017, Pages 74-78
نویسندگان
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