A Levenberg-Marquardt algorithm for fi tting σ-w curves from three-point bend tests for plain and fi ber reinforced concretes
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 (σ-w curves). Tests indicated that the algorithm is sufficiently efficient and robust.
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| Main Author: | |
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| Format: | Digital revista |
| Language: | English |
| Published: |
IBRACON - Instituto Brasileiro do Concreto
2011
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952011000400010 |
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