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Fracture Analysis of High strength and Ultra high strength Concrete beams by using Finite Element Method

A. Ramachandra Murthy1, Nagesh R. Iyer1, B.K. Raghu Prasad2

CSIR-Structural Engineering Research Centre, Taramani, Chennai, India, 600113, [murthyarc, nriyer] @serc.res.in
Civil Engineering Dept., Indian Institute of Science, Bangalore, bkr@civil.iisc.ernet.in

Computers, Materials & Continua 2012, 30(2), 177-194. https://doi.org/10.3970/cmc.2012.030.177

Abstract

This paper presents the details of nonlinear finite element analysis (FEA) of three point bending specimens made up of high strength concrete (HSC, HSC1) and ultra high strength concrete (UHSC). Brief details about characterization and experimentation of HSC, HSC1 and UHSC have been provided. Cracking strength criterion has been used for simulation of crack propagation by conducting nonlinear FEA. The description about FEA using crack strength criterion has been outlined. Bi-linear tension softening relation has been used for modeling the cohesive stresses ahead of the crack tip. Numerical studies have been carried out on fracture analysis of three point bending specimens. It is observed from the studies that the computed values from FEA are in very good agreement with the corresponding experimental values. The computed values of stress vs crack width will be useful for evaluation of fracture energy, crack tip opening displacement and fracture toughness. Further, these values can also be used for crack growth study, remaining life assessment and residual strength evaluation of concrete structural components.

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APA Style
Murthy, A.R., Iyer, N.R., Prasad, B.R. (2012). Fracture analysis of high strength and ultra high strength concrete beams by using finite element method. Computers, Materials & Continua, 30(2), 177-194. https://doi.org/10.3970/cmc.2012.030.177
Vancouver Style
Murthy AR, Iyer NR, Prasad BR. Fracture analysis of high strength and ultra high strength concrete beams by using finite element method. Comput Mater Contin. 2012;30(2):177-194 https://doi.org/10.3970/cmc.2012.030.177
IEEE Style
A.R. Murthy, N.R. Iyer, and B.R. Prasad "Fracture Analysis of High strength and Ultra high strength Concrete beams by using Finite Element Method," Comput. Mater. Contin., vol. 30, no. 2, pp. 177-194. 2012. https://doi.org/10.3970/cmc.2012.030.177



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