کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4451686 1620665 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A study on an efficient prediction of welding deformation for T-joint laser welding of sandwich panel Part II: Proposal of a method to use shell element model
ترجمه فارسی عنوان
مطالعه ای در مورد پیش بینی کارآیی تغییر شکل جوش برای جوشکاری لیزر ساندویچ پانل بخش دوم: پیشنهاد روش برای استفاده از مدل عناصر پوسته
کلمات کلیدی
پانل ساندویچ، جوش لیزری، تجزیه و تحلیل انتقال حرارت، رویکرد لایه نازک، تجزیه و تحلیل پلاستیک و پلاستیک حرارتی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی

ABSTRACTI-core sandwich panel that has been used more widely is assembled using high power CO2 laser welding. Kim et al. (2013) proposed a circular cone type heat source model for the T-joint laser welding between face plate and core. It can cover the negative defocus which is commonly adopted in T-joint laser welding to provide deeper penetration. In part I, a volumetric heat source model is proposed and it is verified thorough a comparison of melting zone on the cross section with experiment results. The proposed model can be used for heat transfer analysis and thermal elasto-plastic analysis to predict welding deformation that occurs during laser welding. In terms of computational time, since the thermal elasto-plastic analysis using 3D solid elements is quite time consuming, shell element model with multi-layers have been employed instead. However, the conventional layered approach is not appropriate for the application of heat load at T-Joint. This paper, Part II, suggests a new method to arrange different number of layers for face plate and core in order to impose heat load only to the face plate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Naval Architecture and Ocean Engineering - Volume 6, Issue 2, June 2014, Pages 245–256
نویسندگان
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