Location

La Jolla ,CA

Start Date

1-1-1989 12:00 AM

Description

Past research into the numerical modeling of ultrasonic wave propagation and scattering in 2-D has resulted in an implicit Newmarktype finite element algorithm [1]. However, by applying this formulation to analytical line source problems [2], it was found that the resulting matrix sizes and computer execution times, even on powerful supercomputers such as the CYBER 205, become prohibitively large. New algorithmic approaches are therefore required to study realistic 2-D NDT suitable geometries and, more importantly, to extend the numerical model to full 3-D capabilities.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

8A

Chapter

Chapter 1: Fundamentals of Classic Techniques

Section

Elastic Wave Scattering and Inversion

Pages

103-108

DOI

10.1007/978-1-4613-0817-1_13

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A 3-D Finite Element Formulation for Ultrasonic NDT Phenomena

La Jolla ,CA

Past research into the numerical modeling of ultrasonic wave propagation and scattering in 2-D has resulted in an implicit Newmarktype finite element algorithm [1]. However, by applying this formulation to analytical line source problems [2], it was found that the resulting matrix sizes and computer execution times, even on powerful supercomputers such as the CYBER 205, become prohibitively large. New algorithmic approaches are therefore required to study realistic 2-D NDT suitable geometries and, more importantly, to extend the numerical model to full 3-D capabilities.