Thermal Stress Concentration in Plates from Different Materials

Joint properties of friction welded joint between pure magnesium and pure aluminium with post-weld heat treatment

“…16 through 18. That is, the thermal stress of a dissimilar joint during the cooling stage of PWHT process was generated like as fusion welding [52] due to the difference of mechanical and thermal properties. Therefore, the dissimilar joint subjected to PWHT will be able to consider that it was welded.…”

3D finite element modeling of the thermally induced residual stress in the hybrid laser/arc welding of lap joint

“…Therefore, a gap-free configuration could be thought of as a special case of gap value approaching zero, which is chosen in this study to investigate the thermal distribution of the hybrid laser/arc welding process. The contact heat transfer that exists between the top sheet and bottom sheet before they are welded is generally ignored in the theoretical and numerical thermal analysis in previous work (Abdulaliyev et al, 2007). Recently, some reports experimentally show that the reduction in the weld distortion and the level of residual stresses of joint could be achieved by controlling the gap thickness (Peyffarth and Krivt, 2002).…”

“…However, the contact heat transfer between the top and bottom sheets is ignored. Abdulaliyev et al (2007) apply a photothermoelastic model to investigate the thermal stress concentration in the butt-jointed thick plates of different materials where the residual stresses are not considered.…”

Öngerilmeli Beton Elemanlarda Gerilme Analizi

“…Uygulanan deneysel yönteme göre modelin ilgili parçalarında öngörülen yüklerin modellenmesi üçboyutlu fotoelastisitenin şekil değiştirmelerin "dondurulması" metoduyla yapılır. Dolayısıyla, modelde yüklenmenin sağlanması için öngörülen şekil değiştirmelerin, onun beton kısımlarını temsil eden optik hassas malzemeden yapılmış parçalarında "dondurulması" gerekmektedir [11].…”