Finite element modelling of mixed-mode delamination propagation in Abaqus/Explicit with linear and nonlinear cohesive softening laws
dc.contributor.author | Rulko, Theo A. | |
dc.contributor.author | Nguyen, M. Hoang | |
dc.contributor.author | Waas, Anthony M. | |
dc.contributor.advisor | Waas, Anthony | |
dc.date.accessioned | 2023-05-25T16:01:05Z | |
dc.date.available | 2023-05-25T16:01:05Z | |
dc.date.issued | 2021 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/176691 | |
dc.description.abstract | Accurate modelling of delamination propagation in laminates is key to predicting the failure of composite structures. In this study, an implementation of the Cohesive Zone Model (CZM) using a novel mixed-mode formulation based on defining an effective separation and allowing for generalizable non-linear cohesive traction-separation softening laws, is presented and evaluated. To this end, several finite element models representing a laminate specimen under pure mode I, pure mode II, or mixed-mode conditions, respectively, are constructed and benchmarked against other studies from literature. Then, the influence of the cohesive softening law shapes on the load-displacement response of the specimen is evaluated. Results show that, with the appropriate softening law shape, the novel implementation successfully captures delamination growth and most load-displacement characteristics without the need for an empirical energy criterion. | |
dc.subject | composite materials | |
dc.subject | finite element analysis | |
dc.subject | delamination | |
dc.subject | Abaqus | |
dc.subject | cohesive zone model | |
dc.title | Finite element modelling of mixed-mode delamination propagation in Abaqus/Explicit with linear and nonlinear cohesive softening laws | |
dc.type | Project | |
dc.subject.hlbtoplevel | Engineering | |
dc.description.peerreviewed | NA | |
dc.contributor.affiliationum | Department of Aerospace Engineering | |
dc.contributor.affiliationum | Department of Aerospace Engineering | |
dc.contributor.affiliationum | Department of Aerospace Engineering | |
dc.contributor.affiliationumcampus | Ann Arbor | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/176691/1/Finite_element_modelling_of_mixed_mode_delamination_propagation_in_Abaqus_Explicit_with_linear_and_nonlinear_cohesive_softening_laws_-_Theo_Rulko.pdf | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/176691/2/Honors_Capstone_Poster_Theo_Rulko_-_Theo_Rulko.pdf | |
dc.identifier.doi | https://dx.doi.org/10.7302/7540 | |
dc.working.doi | 10.7302/7540 | en |
dc.owningcollname | Honors Program, The College of Engineering |
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