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A Levenberg-Marquardt algorithm for fitting sigma-w curves from three-point bend tests for plain and fiber reinforced concretes
| Revista IBRACON de Estruturas e Materiais
A Levenberg-Marquardt algorithm for fitting sigma-w curves from three-point bend tests for plain and fiber reinforced concretes
Jose Luiz Antunes de Oliveira e Sousa
Resumo
This technical note describes the implementation of the Levenberg-Marquardt algorithm for the inverse analysis of three-point bend tests on notched specimens of plain and fiber reinforced concretes for determining softening parameters (sigma-w curves). Tests indicated that the algorithm is sufficiently efficient and robust.
