An ultrasonic methodology to non-destructively estimate the grain orientation in an anisotropic weld
Paper i proceeding, 2014

The initial step towards a non-destructive technique that estimates grain orientation in an anisotropic weld is presented in this paper. The purpose is to aid future forward simulations of ultrasonic NDT of this kind of weld to achieve a better result. A forward model that consists of a weld model, a transmitter model, a receiver model and a 2D ray tracing algorithm is introduced. An inversion based on a multi-objective genetic algorithm is also presented. Experiments are conducted for both P and SV waves in order to collect enough data used in the inversion. Calculation is conducted to fulfil the estimation with both the synthetic data and the experimental data. Concluding remarks are presented at the end of the paper. © Owned by the authors, published by EDP Sciences, 2014.

Författare

Håkan Wirdelius

Chalmers, Material- och tillverkningsteknik, Avancerad oförstörande provning

Qingwei Liu

Chalmers, Material- och tillverkningsteknik, Avancerad oförstörande provning

MATEC Web of Conferences

2261236X (eISSN)

Vol. 12 04008

Ämneskategorier

Materialteknik

DOI

10.1051/matecconf/20141204008

ISBN

9782759812745