DETERMINATION OF FAILURE STRENTH OF FLAT PLATE WELD JOINT USING FINITE ELEMENT ANALYSIS

Abstract

The problem that has faced the manufacturer is the control of the process input parameters to obtain a good welded joint with the required weld quality. Traditionally, it has been necessary to study the weld input parameters for welded product to obtain a welded joint with the required quality. To do so, requires a time-consuming trial and error development method. Then welds are examined whether they meet the requirement or not. Finally the weld parameters can be chosen to produce a welded joint that closely meets the joint qualities. Also, what is not achieved or often considered is an optimized welding parameters combination, since welds can often be formed with very different parameters. In other words, there is often a more ideal welding input parameters combination, which can be used.Welding is a process of permanent joining of two materials (usually metals) through localized coalescence resulting from a suitable combination of temperature, pressure and metallurgical conditions. Depending upon combination of temperature and pressure from high temperature with no pressure to high pressure with low temperature, a wide range of welding processes has been developed.Finite element analysis (FEA) has become a practical method of predicting stresses and deflection for loaded structures. FEA identifies the load path, which can be difficult using classical analysis with complex structures. Welding is the process of joining two pieces of metal by creating a strong metallurgical bond between them by heating or pressure or both. Welding enables direct transfer of stress between members, eliminating gusset and splice plates necessary for bolted structures. Two types of fillet weld are possible. A single transverse fillet weld and double transverse fillet weld. Strength of single transverse fillet weld is improved by the application of restraining force.