کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6758251 | 1431264 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simulating the ultrasonic scattering from complex surface-breaking defects with a three-dimensional hybrid model
ترجمه فارسی عنوان
شبیه سازی پراکندگی اولتراسونیک از نقص پیچیده سطح شکست با یک مدل ترکیبی سه بعدی
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کلمات کلیدی
روش عنصر محدود مدل سازی ترکیبی پراکندگی التراسونیک، نقص سطحی شکستن،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Modelling is increasingly relied on for the design and qualification of ultrasonic inspections applied to safety-critical components. Numerical methods enable the simulation of the ultrasonic interaction with realistic defect morphologies; however, the computational requirements often limit their deployment. The hybrid simulation technique, which combines semi-analytical and numerical methods, realises the potential of high fidelity numerical modelling without the limiting computational factors. The inspection of thick section components for near-backwall surface-breaking defects results in large propagation distances, making them a key application of hybrid modelling. This work presents a methodology for efficiently simulating the ultrasonic inspection of complex surface-breaking defects using a hybrid model. The model is initially verified against full numerical simulation; further validation is presented by comparison to an experimental scan over an artificially machined surface-breaking notch. The potential of the new hybrid method is then demonstrated by carrying out a Monte Carlo analysis on the scattered field from surface-breaking defects with randomly rough surfaces and the results are compared to the Kirchhoff approximation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 97, July 2018, Pages 32-41
Journal: NDT & E International - Volume 97, July 2018, Pages 32-41
نویسندگان
Richard Phillips, David Duxbury, Peter Huthwaite, Michael Lowe,