Numerical modelling response of laser welded sandwich panel under three-point bending test

1st International Postgraduate Conference on Mechanical Engineering

工业技术（总论）;机械制造

Romli, N.K.^1 ; Rejab, M.R.M.^1 ; Xiaoxia, Jiang^2 ; Merzuki, N.M.N.^1

School of Engineering, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, Pekan, Pahang

26600, Malaysia^1

School of Mechanical Engineering, Ningxia University, Yinchuan

750021, China^2

关键词: Bending loading;    Cell-wall buckling;    Corrugated core;    Initial failure;    Local failure;    Sandwich panel;    Three-point bending test;    Unit cells;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/469/1/012060/pdf
DOI  :  10.1088/1757-899X/469/1/012060

学科分类：工业工程学

来源: IOP

【 摘 要 】

The sandwich structure is known by inner and outer faces which acted compositely with relatively low strength core. Sandwich panel consisted of two thin and stiff skins and separated by a thick and lightweight core. The objective of this study to predict the behaviour of the laser-welded sandwich panel under three-point bending test. Numerical modelling of laser-welded was studied and run under bending loading. The sandwich panels were studied on a different number of the unit cell; 1-core, 2-core and 3-core. The role of a number of web-core to determine overall deformation and local failure response of the sandwich panel was studied. Faceplate and web plate were connected by using diode laser welding. The plates were cut by using sheet metal cutter machine for precise dimension. The sandwich panel modelled by using Abaqus 6.13 version to predict the response of the sandwich panel under bending loading. Cell wall buckling was found as an initial failure in the corrugated core system. The prediction result showed good agreement with experimental measurements.