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Finite Element Analysis of an Improved Center Crack Specimen

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Abstract:

A new crack specimen called the diagonally loaded square plate (DLSP) containing an angled central crack is analyzed using the finite element method. The stress intensity factors and the T-stress are calculated for the new specimen in the full range from pure mode I to pure mode II. Unlike the conventional center cracked specimen under uniaxial loading, the improved specimen is able to provide pure mode II. It is shown that the effect of non-singular stress component T in the DLSP specimen is not ignorable relative to the singular stress terms, particularly for mode II dominated loading conditions.

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Periodical:

Key Engineering Materials (Volume 347)

Pages:

441-446

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.347.441

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Online since:

September 2007

Authors:

Majid R. Ayatollahi, M.R.M. Aliha, S. Rahmanian

Keywords:

Crack Tip Parameter, Finite Element Analysis (FEA), Improved Centre Crack Specimen, Mixed Mode Loading

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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