Numerical analysis of the dual actuator load test applied to fracture characterization of bonded joints

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Filipe J P Chaves (Author) Other; de Moura, MFSF (Author) FEUP; da Silva, LFM (Author) FEUP; Dillard, DA (Author) Other

Journal

Title: International Journal of Solids and Structures

Vol. 48

Pages: 1572-1578

ISSN: 0020-7683

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 12 Citations

ISI Web of Science

Scopus - 13 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-002-RFZ

DOI: 10.1016/j.ijsolstr.2011.02.006

Abstract (EN): The dual actuator load test was numerically analyzed in order to assess its adequacy for fracture characterization of bonded joints under different mixed-mode loading conditions. This test enables asymmetric loading of double cantilever beam specimens, thus providing a large range of mixed-mode combinations. A new data reduction scheme based on specimen compliance, beam theory and crack equivalent concept was proposed to overcome several difficulties inherent to the test. The method assumes that the dual actuator test can be viewed as a combination of the double cantilever beam and end loaded split tests, which are used for pure modes I and II fracture characterization, respectively. A numerical analysis including a cohesive mixed-mode damage model was performed considering different mixed-mode loading conditions to evaluate the test performance. Some conclusions were drawn about the advantages and drawbacks of the test.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7