Loading rate effect on the mode-I interlaminar fracture toughness

Huifang Liu, Chao Zhang, Yulong Li

Research output: Contribution to conferencePaperpeer-review

Abstract

The rate dependence of mode I interlaminar fracture behavior for unidirectional carbon fiber/epoxy composite laminates has been investigated over a wide range of loading rates from quasi-static to impact loading condition. Two types of specimen were used to study the loading rate dependence of interlaminar fracture behavior, one is wedge insert fracture (WIF) and the other is double cantilever beam (DCB) specimens. Impact WIF tests were carried out with split Hopkinson pressure bar(SHPB) system. And DCB specimens were loaded using an electromagnetically driving split Hopkinson tensile bar (SHTB) which can impose symmetrical displacements to the two arms of the DCB, limiting the vibrations of the sample. The high-rate tests were photographed using a high-speed camera to record the deformation of the laminate and the opening displacement field.

Original languageEnglish
Pages626-627
Number of pages2
StatePublished - 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: 18 Jun 201720 Jun 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
Country/TerritoryGreece
CityRhodes
Period18/06/1720/06/17

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