Experimental Verification of the DCB Test Configuration Applicability to Mechanically Coupled Composite Laminates

7th International Conference on Advanced Materials and Structures

Rzeczkowski, J.^1 ; Samborski, S.^1 ; Panik, J.^1

Lublin University of Technology, Department of Applied Mechanics, Nadbystrzycka 36 St., Lublin

20-618, Poland^1

关键词: Applied loads;    Composite beam;    Composite laminate;    Critical strain energy release rates;    Double cantilever beam;    Experimental determination;    Experimental verification;    Load point displacement;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/416/1/012055/pdf
DOI  :  10.1088/1757-899X/416/1/012055

来源: IOP

【 摘 要 】

This article presents an experimental determination on mode I critical strain energy release rate (c-SERR, G IC). Multidirectional (MD) composite beams were subjected to the double cantilever beam (DCB) test during which the applied load and the load point displacement were registered. The maximum peak force was taken into account in calculation of the G IC. It was computed using three different methods. On the basis of the performed test it was found that the critical strain energy release rate depends on the specimen interface.