توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱a study on the effect of convection modeling on the distribution and magnitude of welding temperature fields and residual stresses
نویسنده(ها): ،
اطلاعات انتشار: کنگره بین المللی جوش و روشهای اتصال، سال
تعداد صفحات: ۹
prediction of temperature fields in welding is of great importance good prediction of temperature fields is necessary for proper estimation of welding distortions residual stresses and microstructures one of the most important components in thermal simulation of welding is the modeling of convection actually the intense heat around the weld area and temperature gradients through the work pieces invoke such a model to predict the heat loss accurately this paper provides proper data to compare different modeling types and finally proposes an empirical model for the heat transfer coefficient . three dimensional uncoupled thermal mechanical analyses have been performed using the abaqus software.<\div>

۲effects of conductivity and expansion coefficient variations on the distribution and magnitude of residual stresses in welded plates
نویسنده(ها): ،
اطلاعات انتشار: کنگره بین المللی جوش و روشهای اتصال، سال
تعداد صفحات: ۱۰
a major concern when carrying out welding simulations is to accurately model material behavior as it varies with temperature and composition plate specimens have been modeled investigate the effects of conductivity and expansion coefficient variations of welding temperature fields and residual stresses thermal conductivity plays an important role in thermal analysis of welding while thermal expansion coefficient is an important factor during mechanical analysis . in order to make this investigation possible a numerical modeling has been developed using the ABAQUS software uncouplde thermal –mechanical three dimensional finite element models have been developed to predict the temperature fields and residual stresses during and after welding by variation of the properties specified.<\div>
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