Learning Centre

Prediction of crack formation in the progressive folding of square tubes during dynamic axial crushing

 |  Login

Show simple item record

dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Liu, Wenqi
dc.contributor.author Lian, Junhe
dc.contributor.author Münstermann, Sebastian
dc.contributor.author Zeng, Chongyang
dc.contributor.author Fang, Xiangfan
dc.date.accessioned 2020-03-13T15:26:03Z
dc.date.available 2020-03-13T15:26:03Z
dc.date.issued 2020-06-15
dc.identifier.citation Liu , W , Lian , J , Münstermann , S , Zeng , C & Fang , X 2020 , ' Prediction of crack formation in the progressive folding of square tubes during dynamic axial crushing ' , International Journal of Mechanical Sciences , vol. 176 , 105534 . https://doi.org/10.1016/j.ijmecsci.2020.105534 en
dc.identifier.issn 0020-7403
dc.identifier.issn 1879-2162
dc.identifier.other PURE UUID: ed81bb70-94d7-45db-a0a3-0c86a18c466c
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/ed81bb70-94d7-45db-a0a3-0c86a18c466c
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85080063316&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/41462901/ENG_Liu_et_al_Prediction_of_crack_formation_International_Journal_of_Mechanical_Sciences.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/43468
dc.description.abstract Experimental and numerical investigations at both lab and structure scales on the plasticity and failure behavior of an automotive dual-phase steel sheet (DP1000) are performed in this study. On the lab level, an extensive experimental program considering the temperature and strain rate effects on the plastic deformation behavior and the stress state dependency of the ductile fracture behavior is designed. On the structure level, dynamic square tube crushing tests are performed on a drop tower. The extended hybrid damage mechanics model is formulated in the study to describe the deformation and damage/fracture behavior of DP1000 considering the influence of temperatures, strain rates, and loading histroy. The plasticity and fracture description at the lab scale is used to calibrate the material parameters of the model, which is further applied to predict the crashworthiness of the square tube crushing tests. The proposed model has been proven to show very good predictive capability at both lab and structure scales. It is further found that for the modern high-strength steels short cracks could be developed in the tube crushing tests and the crack formation mechanics is shearing and local second-level bending caused by the self-contact between folds. en
dc.format.extent 15
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier Limited
dc.relation.ispartofseries International Journal of Mechanical Sciences en
dc.relation.ispartofseries Volume 176 en
dc.rights openAccess en
dc.title Prediction of crack formation in the progressive folding of square tubes during dynamic axial crushing en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Advanced Manufacturing and Materials
dc.contributor.department RWTH Aachen University
dc.contributor.department University of Siegen
dc.contributor.department Department of Mechanical Engineering en
dc.subject.keyword Crash box
dc.subject.keyword Crashworthiness
dc.subject.keyword Dual-phase steel
dc.subject.keyword Ductile fracture model
dc.subject.keyword FEM simulation
dc.identifier.urn URN:NBN:fi:aalto-202003132509
dc.identifier.doi 10.1016/j.ijmecsci.2020.105534
dc.date.embargo info:eu-repo/date/embargoEnd/2022-02-15

Files in this item

Files Size Format View

There are no open access files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search archive

Advanced Search

article-iconSubmit a publication