Abstract
The bend-beam specimen serves as a constant strain test for stress corrosion cracking related studies. State of stress-strain in the specimen changes dramatically after the occurrence of cracks. To understand the severity of occurred cracks at various locations in the specimen, it is highly recommended to use finite element method-based techniques. In the present study, the edge crack embedded in the bend-beam specimen strained by deflection-controlled bending was investigated. Modelling of the edge crack was performed using contour integral method in ABAQUS CAE software. Brown’s empirical equation was considered to verify the crack model employed in the present study. Three different variables known as crack length, crack position and loading were chosen for the study, to understand their influence on mode-I stress intensity factor (SIF). It is concluded that the position of an edge crack in the specimen can produce significant influence on mode-I SIF. Moreover, conditional correlations were observed among mode-I SIF of offset edge cracks and the central edge crack regardless of the loading magnitude.
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