Please use this identifier to cite or link to this item: https://doi.org/10.1061/(ASCE)0899-1561(2005)17:2(219)
Title: Failure surface for concrete under multiaxial load - A unified approach
Authors: Seow, P.E.C.
Swaddiwudhipong, S. 
Keywords: Axial loads
Failure surface
Fininte element method
High strength concretes
Steel fibers
Issue Date: Mar-2005
Source: Seow, P.E.C., Swaddiwudhipong, S. (2005-03). Failure surface for concrete under multiaxial load - A unified approach. Journal of Materials in Civil Engineering 17 (2) : 219-228. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)0899-1561(2005)17:2(219)
Abstract: A new unified five-parameter failure surface has been proposed for use with normal strength (NC), high strength (HSC), and steel fiber-reinforced (SFRC) concrete under biaxial, triaxial, or axisymmetric loads. The study covers concrete with strengths ranging from 20 to 130 MPa. The failure surface developed for plain concrete has been modified to account for the presence of steel fibers. The proposed failure surface was verified against experimental data of unconfined NC, HSC, and SFRC under multiaxial loads, as well as concrete confined by steel tubes. To facilitate the implementation of the failure surface into a finite-element package, a closed-form solution for predicting the state of stress in concrete has been developed. This failure criterion was successfully incorporated into constitutive models for plain concrete and SFRC. Experiments of plain concrete cubes and SFRC plates under multiaxial loads, as well as SFRC beams under two-point load, were modeled to illustrate the application of the failure surface to a wide range of concrete under varying load conditions. Good agreement between analytical and experimental results is observed. © ASCE.
Source Title: Journal of Materials in Civil Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/65584
ISSN: 08991561
DOI: 10.1061/(ASCE)0899-1561(2005)17:2(219)
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