International Journal of Structural Integrity: Volume 6 Issue 6

SIF determination with digital image correlation

Paulo J Tavares, Tiago Ramos, Daniel Braga, Mario A P Vaz, Pedro Miguel Guimarães Pires Moreira

Hybrid methods, wherefore numerical and experimental data are used to calculate a critical parameter, have been used for several years with great success in Experimental Mechanics…

Multi-objective fatigue life optimization using Tabu Genetic Algorithms

Kim C. Long, William S Duff, John W Labadie, Mitchell J Stansloski, Walajabad S Sampath, Edwin K.P. Chong

The purpose of this paper is to present a real world application of an innovative hybrid system reliability optimization algorithm combining Tabu search with an evolutionary…

Application of the strain-based FAD to failure assessment of surface cracked components

Igor Varfolomeev, Michael Windisch, Gerben Sinnema

The purpose of this paper is to validate the strain-based failure assessment diagram (SB-FAD) approach for surface cracks in components subjected to displacement controlled…

Virtual sensors for SHM using isogeometric piezoelectric finite elements

Artur Szewieczek, Christian Willberg, Daniel Schmidt, Michael Sinapius

A design of sensor networks for structural health monitoring (SHM) with guided waves poses a hard challenge. Therefore different approaches are possible. A known one is the usage…

Evaluation of semi-ellipsoidal wall thinning on back surface of plate by direct-current potential difference method

Naoya Tada, Manabu Nohara

Local wall thinning is one of serious problems in aged power generating plants. As the thinning grows inside the pipes, it is difficult to detect and evaluate it from the outer…

Induction of through-thickness compressive residual stress fields in thin Al2024-T351 plates by laser shock processing

José L. Ocaña, Carlos Correa, Juan A Porro, Marcos Díaz, Leonardo Ruiz de Lara, David Peral

With the aid of the calculational system developed by the authors, the analysis of the problem of laser shock processing (LSP) treatment for induction of residual stress (RS…

The significance of the interaction of stability and damage propagation in metallic and composite panels

Peter Horst

In general two main types of criteria are essential for the sizing of aircraft structural panels, namely, stability and damage tolerance. The way these criteria act and interact…

Structural analysis of a cross car beam using finite element models

André F. B. P. Pinto, S.M.O. Tavares, José M. A. César de Sá, P.M.S.T. de Castro

The purpose of this paper is to use PAM-CRASH, a finite element analysis solver, to assess the performance of a mass production vehicle cross car beam (CCB) under an overlap…

The effect of welding direction in the fatigue life of aluminium FS welded lap joints

F.F. Duarte, Virgínia Isabel V. Infante, P.M.G. Moreira, M. de Freitas, P.M.S.T. de Castro

Friction stir welding lap joints of aluminum alloy AA6082-T6 were joined using two distinct configurations. The purpose of this paper is to study the effect of the welding line…

Fracture mechanical behaviour of laser beam-welded AA2198 butt joints and integral structures

Nikolai Kashaev, Stefan Riekehr, Kay Erdmann, Alexandre Amorim Carvalho, Maxim Nurgaliev, Nikolaos Alexopoulos, Alexandra Karanika

Composite materials and metallic structures already compete for the next generation of single-aisle aircraft. Despite the good mechanical properties of composite materials…

Guest editorial

P.M.G. Moreira, Paulo J Tavares