ORCID Profile
0000-0003-4688-5812
Current Organisation
Western Sydney University
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Civil Engineering | Structural Engineering |
Polymeric Materials (e.g. Paints) | Cement and Concrete Materials | Civil Construction Design
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 11-2012
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2020
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2017
Publisher: American Society of Civil Engineers (ASCE)
Date: 2022
Publisher: MDPI AG
Date: 31-05-2020
Abstract: This paper presents an experimental program that includes 78 fiber reinforced polymer (FRP)-confined square concrete columns subjected to eccentric loading. The degradation of the axial strength of FRP-confined short concrete columns due to the load eccentricity is investigated in this work. A larger load eccentricity leads to a greater decrease in the axial strength. From the test results, it is found that FRP confinement can cause less strength degradation compared with that of unconfined concrete specimens. For FRP-confined square concrete specimens, the strength enhancement due to FRP confinement increases with increasing load eccentricity. However, the increasing load eccentricity decreases the confinement efficiency for FRP-confined circular concrete specimens. The relationship between the strength of eccentrically loaded FRP-confined square columns and their corner radii is evaluated.
Publisher: Elsevier BV
Date: 10-2019
Publisher: Springer Science and Business Media LLC
Date: 30-11-2018
Publisher: MDPI AG
Date: 23-10-2018
DOI: 10.3390/APP8112031
Abstract: Interfacial slip can cause rigidity degradation and stress concentration in fiber-reinforced polymer-concrete hybrid beam (FCHB). Therefore, precisely evaluating the composite action between fiber-reinforced polymer (FRP) and concrete of FCHB plays a pivotal role in structural analysis and design. Previous push-out tests showed that most connections for FCHB behave nonlinearly in load-slip relationships even at a low load level. However, existing analytical equations have their limitations due to the assumption of linear load-slip interfacial relationship which is not suitable for FCHB. The originality of this paper is to propose a finite difference method (FDM) to elaborate the interfacial slip and shear stress. FDM agreed well with the analytical solutions of the linear load-slip relationships for connections. Results indicate that higher accurateness can be obtained by using more elements. And 40 elements for half span of FCHB can reduce the error of numerical results to 1%. Then, the proposed FDM was expanded to predict the interfacial behavior of FCHB considering nonlinear interfacial load-slip relationships. It was found that perforated FRP rib connections can ensure nearly full composite action and the bolted connection can lead to a very high slip level. The use of ultra-high performance concrete (UHPC) results in a higher degree of composite action than normal concrete. The deflection considering slip was computed by adding deformation under full composition action and that caused by the slip effect. It was suggested that high strength steel bolts are effective both in normal concrete and UHPC. When the slip modulus is suggested to be larger than 20 kN/mm, the capacity per bolt should be larger than 20 kN.
Publisher: Elsevier BV
Date: 06-2017
Publisher: Elsevier BV
Date: 2023
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2021
Publisher: MDPI AG
Date: 11-05-2016
DOI: 10.3390/POLYM8050186
Publisher: American Society of Civil Engineers (ASCE)
Date: 08-2014
Publisher: Trans Tech Publications, Ltd.
Date: 06-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.538-541.2576
Abstract: Abstract. The free vibration of the piezoelectric laminated cylindrical shell with throughout circumference delamination is analyzed in this paper. By introducing the Heaviside step function into assumed displacement components and using elastic piezoelectric theory, the constitutive relations of the piezoelectric laminated shell with delamination are established. Then the dynamic governing equations of the structure are derived through variational principle. In numerical ex les, the effects of delamination length, depth, boundary condition, material property and thickness of piezoelectric layer on the first natural frequency of piezoelectric laminated shell with delamination are investigated.
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 2023
Publisher: American Society of Civil Engineers (ASCE)
Date: 11-2016
Publisher: Informa UK Limited
Date: 15-11-2016
Publisher: Elsevier BV
Date: 07-2019
Publisher: Wiley
Date: 21-01-2021
Abstract: Most existing studies on fiber reinforced polymer (FRP) confined concrete have focused on undamaged concrete that is subjected to uniaxial monotonic compression. However, FRP jackets are usually applied to concrete columns with existing material damage and potential future damage. This paper investigates FRP confinement on concrete with damage before and after FRP jacketing. A total of 32 FRP‐confined concrete specimens were tested under axial compression in this work. The prior damage before FRP jacketing was implemented as predamaging by applying preloading and then release on the plain concrete specimens. The post damage after FRP jacketing was performed by applying cyclic axial compression loading on FRP‐confined concrete specimens. The test results reveal that the concrete predamage levels have significant influences on the cyclic stress–strain curve and envelop stress–strain curve for FRP confined concrete under cyclic loading. Existing models on ultimate state, plastic strain, reloading and unloading moduli were evaluated and investigated in this work.
Publisher: Elsevier BV
Date: 02-2019
Publisher: IEEE
Date: 04-2011
Publisher: Elsevier BV
Date: 05-2018
Publisher: MDPI AG
Date: 08-10-2018
DOI: 10.3390/S18103361
Abstract: The behavior of fiber reinforced polymer (FRP) composites at high temperature is a critical issue that needs to be clearly understood for their structural uses in civil engineering. However, due to technical difficulties during testing at high temperature, limited experimental investigations have been conducted regarding the thermal behavior of basalt fiber reinforced polymer (BFRP) composites, especially for the in-plane shear modulus of BFRP laminates. To this end, both an analytical derivation and an experimental program were carried out in this work to study the in-plane shear modulus of BFRP laminates. After the analytical derivation, the in-plane shear modulus was investigated as a function of the elastic modulus in different directions (0°, 45° and 90° of the load-to-fiber angle) and Poisson's ratio in the fiber direction. To obtain the in-plane shear modulus, the four parameters were tested at different temperatures from 20 to 250 °C. A novel non-contacting digital image correlation (DIC) sensing system was adopted in the high-temperature tests to measure the local strain field on the FRP s les. Based on the test results, it was found that the elastic moduli in different directions were reduced to a very low level (less than 20%) from 20 to 250 °C. Furthermore, the in-plane shear modulus of BFRP at 250 °C was only 3% of that at 20 °C.
Publisher: Elsevier BV
Date: 12-2018
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2019
Publisher: Elsevier BV
Date: 05-2017
Publisher: Elsevier BV
Date: 2018
Publisher: Elsevier BV
Date: 2023
Publisher: SAGE Publications
Date: 11-2018
Abstract: Bayesian operational modal analysis and modal strain energy are employed for determining the damage and looseness of bolted joints in beam structures under ambient excitation. With this ambient modal identification technique, mode shapes of a damaged beam structure with loosened bolted connections are obtained based on Bayesian theory. Then, the corresponding modal strain energy can be calculated based on the mode shapes. The modal strain energy of the structure with loosened bolted connections is compared with the theoretical one without bolted joints to define a damage index. This approach uses vibration-based nondestructive testing of locations and looseness of bolted joints in beam structures with different boundary conditions by first obtaining modal parameters from ambient vibration data. The damage index is then used to identify locations and looseness of bolted joints in beam structures with single or multiple bolted joints. Furthermore, the comparison between damage indexes due to different looseness levels of bolted connections demonstrates a qualitatively proportional relationship.
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2013
Publisher: Elsevier BV
Date: 04-2013
Publisher: Elsevier BV
Date: 11-2018
Start Date: 09-2021
End Date: 09-2024
Amount: $396,958.00
Funder: Australian Research Council
View Funded Activity