Journal Published Online: 07 May 2021
Volume 50, Issue 1

Development of a Split Hopkinson Pressure Bar Machine for High Strain Rate Testing of Bonded Joints

CODEN: JTEVAB

Abstract

The design of adhesively bonded connections for structural applications has recently become a major field of research, with extensive applications in the automotive and aerospace industries. In these structures, bonded joints are often subjected to important static and dynamic loads, which require careful geometrical dimensioning and material selection. The performance analysis of adhesive joints under these conditions is often made with numerical modeling and supported by experimental studies that can correctly characterize their mechanical behavior. To obtain this characterization under impact conditions, it is critical to employ equipment suitable for impact testing of adhesives and adhesive joints. For this reason, an innovative Split Hopkinson Pressure Bar machine was designed. This machine includes a pneumatic actuator capable to operating up to 30 m/s in both directions, and an innovative lever-based braking system, capable of stopping the actuator for both tensile and compression tests. The tensile and compression pressure bar setups, as well as the machine support and its characteristics, are also described.

Author Information

Boland, Alexandre J.
Departamento de Engenharia Mecânica, Faculdade de Engenharia (FEUP), Universidade do Porto, Porto, Portugal
Lopes, António M.
Departamento de Engenharia Mecânica, Faculdade de Engenharia (FEUP), Universidade do Porto, Porto, Portugal Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Porto, Portugal
da Silva, Carlos M. S. Moreira
Departamento de Engenharia Mecânica, Faculdade de Engenharia (FEUP), Universidade do Porto, Porto, Portugal
Tenreiro, António F. G.
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Porto, Portugal
da Silva, Lucas F. M.
Departamento de Engenharia Mecânica, Faculdade de Engenharia (FEUP), Universidade do Porto, Porto, Portugal Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Porto, Portugal
Nunes, P. D. P.
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Porto, Portugal
Marques, E. A. S.
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Porto, Portugal
Carbas, R. J. C.
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Porto, Portugal
Pages: 15
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE20200677
ISSN: 0090-3973
DOI: 10.1520/JTE20200677