Finite element analysis of spot welding diameter measurement based on ultrasonic

Abstract：In order to analysis of spot welding diameter, the realizations of modeling, loading and post processing are detailedly elaborated by using finite element method.The peak value of upper iron board underside echo vs.weld radius curve is portrayed.The simulation result is consistent with experiment, which indicates that finite element method is available for simulating the spot welding diameter measurement.The results offer data for quantitative measuring weld diameter.

Keyword：resistance spot welding;finite element method;nondestructive testing;ultrasonic;