Evaluation of nano/micro composites for nondestructive repair of delaminated structures

Giri Venkiteela; Matthew Klein; Husam Najm; Balaguru Perumalsamy

doi:10.1117/12.915664

4 April 2012 Evaluation of nano/micro composites for nondestructive repair of delaminated structures

Giri Venkiteela, Matthew Klein, Husam Najm, Balaguru Perumalsamy

Proceedings Volume 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012; 83470M (2012) https://doi.org/10.1117/12.915664
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

Results of an experimental evaluation of nano/micro inorganic composites are presented in this paper. Alkali alumino silicates matrices reinforced with nano/micro fibers were used to repair (glue) fractured concrete prisms and test them in three point bending. Further, shear strength of matrices were also obtained using push-up tests. The variables evaluated were mix composition, temperature and specimen size. It is observed that flexural tensile strength of 1000 psi can be achieved from the developed matrices. In some instances when repaired broken prisms were tested, the failure occurred by creation of a new fracture surface. The developed matrices had the fluidity to fill very thin delamination, which can be pumped to reach delamination through small drilled holes. The results show that the compositions obtained in this study have excellent potential for application involving the repair of delamination.

Citation Download Citation

Giri Venkiteela, Matthew Klein, Husam Najm, and Balaguru Perumalsamy "Evaluation of nano/micro composites for nondestructive repair of delaminated structures", Proc. SPIE 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012, 83470M (4 April 2012); https://doi.org/10.1117/12.915664

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