Indian Journal of Education and Information Management

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The proposed research paper reports results of the stability analysis of pre-cracked beam-columns. A stiffness reduction parameter due to pre-crack is first calculated, which is used in the equilibrium equations for buckling analysis. Stiffness and stability matrices are derived from the resulting equilibrium equations using the finite difference procedure. An object oriented code in java is developed based on the inverse power method for the extraction of the smallest eigen value corresponding to the critical load. The calculated parameter is then used to calculate the reduced buckling load due to pre-crack. Results obtained compare well with published results in the literature. It is concluded that the parameter k is a good indicator for monitoring stiffness degradation due to pre-crack and that java programming language which is mainly used for commercial and internet applications is a candidate tool for fracture mechanics computations.

Keywords

Pre-crack, Stability, Beam-column, Java Cod, Stiffness Reduction
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