RESIDUAL STRESS DISTRIBUTION FOR A SINGLE PASS WELD IN PIPE

محتوى المقالة الرئيسي

Adnan N. Jameel
Nabeel K. Abid Al-Sahib
Osama F. Abd Al Latteef

الملخص

Heat input due to the welding of mild steel pipe causes a temperature gradient in the parent metal. After welding and temperature cooling down, residual stresses appear around welding zone which reduces the weld strength. Residual stresses are a result of the temperature gradient and the dependency of material properties on the temperature, such as yield strength, elasticity modulus, and thermal expansion coefficient.
In this study, a typical flat joint of a single pass weld in a thin pipe was studied analytically and numerically. Analytical approach is performed by exploring a simple method to calculate the magnitude of residual stress in terms of the weld shrinkage behavior. Numerical analysis is performed by applying non-linear transient heat transfer analysis using welding parameters, such as heat generation, free or force convection with ambient, are performed using a general purpose FE package ANSYS 8.0 in order to obtain the temperature distribution in the welded parts. A non-linear thermal-elastic-plastic stress analysis is then performed using the same package to predict the stress fields during and after welding.

تفاصيل المقالة

كيفية الاقتباس
"RESIDUAL STRESS DISTRIBUTION FOR A SINGLE PASS WELD IN PIPE" (2010) مجلة الهندسة, 16(01), ص 4618–4630. doi:10.31026/j.eng.2010.01.18.
القسم
Articles

كيفية الاقتباس

"RESIDUAL STRESS DISTRIBUTION FOR A SINGLE PASS WELD IN PIPE" (2010) مجلة الهندسة, 16(01), ص 4618–4630. doi:10.31026/j.eng.2010.01.18.

تواريخ المنشور

المراجع

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