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Journal articles
Permanent indentation characterization for low-velocity impact modelling using three-point bending test
Abstract : This paper deals with the origin of permanent indentation in composite laminates subjected to low-velocity impact. The three-point bending test is used to exhibit a non-closure of matrix crack which is assumed as a cause of permanent indentation. According to the observation at microscopic level, this non-closure of crack is produced by the blocking of debris inside matrix cracking and the formation of cusps where mixed-mode delamination occurs. A simple physicallybased law of permanent indentation, ‘‘pseudo-plasticity’’, is proposed. This law is qualitatively tested by three-point bending finite element model and is lastly applied in low-velocity impact finite element model in order to predict the permanent indentation. A comparison between low-velocity impact experiments and simulations is presented.
Cited literature [19 references]
https://hal.archives-ouvertes.fr/hal-01851599
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Monday, July 30, 2018 - 2:51:40 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:55 PM
Long-term archiving on: : Wednesday, October 31, 2018 - 12:54:05 PM
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Monday, July 30, 2018 - 2:51:40 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:55 PM
Long-term archiving on: : Wednesday, October 31, 2018 - 12:54:05 PM
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