دورية أكاديمية

Generalised fracture mechanics approach to the interfacial failure analysis of a bonded steel-concrete joint

التفاصيل البيبلوغرافية
العنوان: Generalised fracture mechanics approach to the interfacial failure analysis of a bonded steel-concrete joint
المؤلفون: W. De Corte, P. Helincks, V. Boel, J. Klus�k, S. Seitl, G. De Schutter
المصدر: Frattura ed Integrità Strutturale, Vol 11, Iss 42, Pp 147-160 (2017)
بيانات النشر: Gruppo Italiano Frattura, 2017.
سنة النشر: 2017
المجموعة: LCC:Mechanical engineering and machinery
LCC:Structural engineering (General)
مصطلحات موضوعية: Fracture mechanics, Steel-concrete joint, Epoxy adhesive, Interfacial properties, Push-out test, Numerical study, Mechanical engineering and machinery, TJ1-1570, Structural engineering (General), TA630-695
الوصف: Steel-concrete joints are often made by welded shear studs. However, this connection reduces the fatigue strength, especially in situations where locally concentrated loads occur with a large number of load cycles e.g. in bridge decks. In this paper the shear bond strength between steel and ultrahigh performance concrete (UHPC) without welded mechanical shear connectors is evaluated through push-out tests and a generalized fracture mechanics approach based on analytical and finite element analyses. The connection is achieved by an epoxy adhesive layer gritted with granules. In the tests, specimens made with various manners of preparation of the epoxy interlayer are tested experimentally. Numerical-analytical 2D and 3D modelling of a steel-concrete connection is performed without and with the epoxy interlayer. The model of a bi-material notch with various geometrical and material properties is used to simulate various singular stress concentrators that can be responsible for failure initiation. Thus conditions of crack initiation can be predicted from knowledge of the standard mechanical and fracture-mechanics properties of particular materials. Results of the fracture-mechanics studies are compared with each other and with experimental results. On the basis of the comparison, the 2D simulation of the steel-concrete connection without the epoxy interlayer is shown to be suitable for the estimation of failure conditions
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1971-8993
Relation: http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_16.pdf; https://doaj.org/toc/1971-8993
DOI: 10.3221/IGF-ESIS.42.16
URL الوصول: https://doaj.org/article/59d361704c354bdcaac8a1fc7e7d2aba
رقم الأكسشن: edsdoj.59d361704c354bdcaac8a1fc7e7d2aba
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19718993
DOI:10.3221/IGF-ESIS.42.16