“Investigation of Weld Strength for Different Weld Conditions Using Design of Experiment and Experimentation”

Abstract

Failure mode is a qualitative measure of resistance spot weld (RSW) performance. To ensure reliability of
resistance spot welds during vehicle lifetime, process parameters should be adjusted so that the pullout failure
mode is guaranteed. In this work, failure mode of resistance spot welds is to be studied under quasi-static tensile
test. It is required to search for new weld quality criterion for resistance spot welded steels. An adhesive layer
with appropriate thickness and elastic modulus is necessary to obtain reasonable distribution of stresses in the
whole lap region of a weld-bonded joint.
In the first part of work spot weld information and failure causes will be discussed, along with it the adhesives
and their applications in welding will also be discussed. DOE will be done using Minitab software for selection of
combinations for experimentations. In later part of work analysis will be done using ANSYS and further
validation of the results using UTM machine.