RT journal article
T1 Rationally-Based Structural Design of Welded Plate Panels
A1 Hammad, Ahmed
A1 Abdel-Nasser, Yehia
A1 Churiaque Bermejo, Cristina
A1 Sánchez Amaya, José María
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 ultimate strength
K1 buckling collapse
K1 welding residual stress
K1 deflection
K1 FEM
AB This study predicts the behavior of welded plate panels (unstiffened plates) with different geometrical properties (slenderness ratio and aspect ratio) in order to address a rational structural design procedure, as these parameters are of great importance from a structural design perspective. Nonlinear finite element analysis has been used to simulate the butt-welding process of plate panels, giving the three-dimensional distribution of distortion and residual stresses induced by welding through the design of a moving heat source. The numerical results are validated with published experimental measurements. The effect of geometrical properties such as slenderness ratio beta and aspect ratio a/b on the creation of welding-induced imperfections (distortion and residual stresses) have been investigated in this work. These geometrical properties influence the creation of the welding-induced imperfections, which in turn affect the load-carrying capacity of the plate panels. Three different plate slenderness ratios with three different aspect ratios have been studied. It is concluded that increasing the plate aspect ratio can highly increase the out-of-plane distortion magnitude as well as the compressive residual stress. The plates with high slenderness ratio (thin thicknesses) are highly affected by increasing plate aspect ratio a/b. As the slenderness ratio beta increases, the reduction in the ultimate strength due to the existence of welding-induced imperfections highly decreases. Slenderness ratio beta can highly affected the ultimate strength of plates with smaller aspect ratio more than plates with higher aspect ratio.
PB MDPI
SN 2075-4701
YR 2021
FD 2021-09
LK http://hdl.handle.net/10498/25849
UL http://hdl.handle.net/10498/25849
LA eng
NO This research was funded by Erasmus+ Programme of European Union Commission (Erasmus+ KA107 grant), that has allowed A.H. to cover the expenses at the University of Cadiz
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026