Improved two-dimensional cracked finite element for crack fault diagnosis

Journal Title: Computer Assisted Methods in Engineering and Science - Year 2012, Vol 19, Issue 3

Abstract

In this paper the two-dimensional finite element with an embedded edge crack proposed by Potirniche et al. (2008) is improved further for crack depth ratios ranging up to 0.9 and for predicting the natural frequency of a cracked beam more accurately. The element is implemented in the commercial finite element code ABAQUS as user element subroutine. The accuracy of the proposed improved cracked element is verified by comparing the predicted, first natural frequency with available experimental data. Subsequently, a methodology to detect the crack's location and size in conjunction with the proposed improved cracked element is also presented.

Authors and Affiliations

Aysha Kalanad, B. N. Rao

Keywords

Related Articles

Identification of aerodynamic coefficients of a projectile and reconstruction of its trajectory from partial flight data

Several optimization techniques are proposed both to identify the aerodynamic coefficients and to reconstruct the trajectory of a fin-stabilized projectile from partial flight data. A reduced ballistic model is used inst...

A distributed implementation of parallel genetic algorithm for slope stability evaluation. (Received in the final form October 13, 2010)

Parallel processing, the method of considering many small tasks to solve one large problem, has emerged as a key enabling technology in modern computing. Parallel computers can be simply classified into shared memory sys...

Homogenization of composites with interfacial debonding using duality-based solver and micromechanics. (Received in the final form February 13, 2009).

One of the key aspects governing the mechanical performance of composite materials is debonding: the local separation of reinforcing constituents from matrix when the interfacial strength is exceeded. In this contributio...

A block sparse shared-memory multifrontal finite element solver for problems of structural mechanics. (Received in the final form July 17, 2009)

The presented method is used in finite-element analysis software developed for multicore and multiprocessor shared-memory computers, or it can be used on single-processor personal computers under the operating systems Wi...

From experimental, structural probability distributions to the theoretical causality analysis of molecular changes

A brief overview of causality analysis (CA) methods applied to MD simulations data for model biomolec ular systems is presented. A CausalMD application for postprocessing of MD data was designed and implemented. MD simul...

Download PDF file
  • EP ID EP73933
  • DOI -
  • Views 156
  • Downloads 0

How To Cite

Aysha Kalanad, B. N. Rao (2012). Improved two-dimensional cracked finite element for crack fault diagnosis. Computer Assisted Methods in Engineering and Science, 19(3), 213-239. https://europub.co.uk./articles/-A-73933