Da Chen
University of Queensland
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Publication
Featured researches published by Da Chen.
Applied Mechanics and Materials | 2016
Da Chen; S. Kitipornchai; Jie Yang
This paper analyzes the dynamic response of a shear deformable functionally graded porous beam under a point harmonic load. Timoshenko beam theory is employed to include the effect of transverse shear strain. The elasticity moduli and mass density of the porous beam vary continuously in the thickness direction based on two different porosity distributions. The relationship between porosity and density coefficients are determined according to the mechanical property of an open-cell metal foam. The equations of motion are derived and solved by applying Ritz method in the space domain and Newmark-β method in the time domain. The dynamic deflections are obtained for porous beams with different boundary conditions. A detailed numerical analysis is presented to show the effects of porosity coefficient and slenderness ratio on the dynamic response of porous beams. The influence of porosity distribution pattern is highlighted to shed a useful insight into the design of functionally graded porous structures.
Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016 | 2017
Da Chen; S. Kitipornchai; Jie Yang
This paper analyzes the dynamic response of a shear deformable functionally graded porous beam under a point harmonic load. Timoshenko beam theory is employed to include the effect of transverse shear strain. The elasticity moduli and mass density of the porous beam vary continuously in the thickness direction based on two different porosity distributions. The relationship between porosity and density coefficients are determined according to the mechanical property of an open-cell metal foam. The equations of motion are derived and solved by applying Ritz method in the space domain and Newmark-β method in the time domain. The dynamic deflections are obtained for porous beams with different boundary conditions. A detailed numerical analysis is presented to show the effects of porosity coefficient and slenderness ratio on the dynamic response of porous beams. The influence of porosity distribution pattern is highlighted to shed a useful insight into the design of functionally graded porous structures.
Composite Structures | 2015
Da Chen; Jie Yang; S. Kitipornchai
International Journal of Mechanical Sciences | 2016
Da Chen; Jie Yang; S. Kitipornchai
Materials & Design | 2017
S. Kitipornchai; Da Chen; Jie Yang
Thin-walled Structures | 2016
Da Chen; S. Kitipornchai; Jie Yang
Composites Science and Technology | 2017
Da Chen; Jie Yang; S. Kitipornchai
Composite Structures | 2018
Jie Yang; Da Chen; S. Kitipornchai
Materials & Design | 2018
Da Chen; S. Kitipornchai; Jie Yang
Composites Part B-engineering | 2018
Y.H. Dong; Y.H. Li; Da Chen; Jie Yang
