Study on Impact Fractures of Adhesively Bonded Composite Joints

Cho, Jae Ung; Blackman, Bamber; Kinloch, Anthony; Rodriguez Sanchez, F.S.

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Paper Title:

Study on Impact Fractures of Adhesively Bonded Composite Joints

Periodical	Advanced Materials Research (Volumes 123 - 125)
Main Theme	Multi-Functional Materials and Structures III
Edited by	Joong Hee Lee
Pages	235-238
DOI	10.4028/www.scientific.net/AMR.123-125.235
Citation	Jae Ung Cho et al., 2010, Advanced Materials Research, 123-125, 235
Online since	August, 2010
Authors	Jae Ung Cho, Anthony Kinloch, Bamber Blackman, F.S. Rodriguez Sanchez
Keywords	Adhesively Bonded Composite Joint, Energy Release Rate, High Rate, Impact Fracture
Price	US$ 28,-

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Abstract

From the impact experiment for the nonlinear plastic behavior with the dynamically loaded adhesively-bonded TDCB specimens, there is the range of load from 1 to 2 kN or pin displacement from 4 to 10 mm for the most part in case of the impact rates 1, 2.5, 5, 7.5 and 12.5m/s. There is also the range of energy from 5 to 10 J or energy release rate(fracture energy) from 3000 to 6000 J/m2 for the most part in case of all impact rates. The fracture energy on automotive adhesive joints can be estimated by using the fracture toughness, GIC, experimental results under high rates of loading in this study. The key fracture mechanics parameter, namely the fracture energy, GIC, was ascertained as a function of test rate and may be used to assess and model the joint performance.