The idealized inverse-opal lattice is a network of slender struts that has cubic symmetry. We analytically investigate the elastoplastic properties of the idealized inverse-opal lattice. The analysis reveals that the inverse-opal lattice is bending-dominated under all loadings, except under pure hydrostatic compression or tension. Under hydrostatic loading, the lattice exhibits a stretching dominated behavior. Interestingly, for this lattice, Young's modulus and shear modulus are equal in magnitude. The analytical estimates for the elastic constants and yield behavior are validated by performing unit-cell finite element (FE) simulations. The hydrostatic buckling response of the idealized inverse-opal lattice is also investigated using the Floquet–Bloch wave method.
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April 2018
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Mechanical Properties of the Idealized Inverse-Opal Lattice
Bijoy Pal,
Bijoy Pal
Department of Mechanical and Aerospace Engineering,
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
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S. N. Khaderi
S. N. Khaderi
Department of Mechanical and Aerospace Engineering,
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
e-mail: snk@iith.ac.in
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
e-mail: snk@iith.ac.in
Search for other works by this author on:
Bijoy Pal
Department of Mechanical and Aerospace Engineering,
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
S. N. Khaderi
Department of Mechanical and Aerospace Engineering,
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
e-mail: snk@iith.ac.in
Indian Institute of Technology,
Hyderabad 502285, Kandi, India
e-mail: snk@iith.ac.in
1Corresponding author.
Manuscript received August 26, 2017; final manuscript received January 9, 2018; published online February 5, 2018. Assoc. Editor: George Kardomateas.
J. Appl. Mech. Apr 2018, 85(4): 044501 (6 pages)
Published Online: February 5, 2018
Article history
Received:
August 26, 2017
Revised:
January 9, 2018
Citation
Pal, B., and Khaderi, S. N. (February 5, 2018). "Mechanical Properties of the Idealized Inverse-Opal Lattice." ASME. J. Appl. Mech. April 2018; 85(4): 044501. https://doi.org/10.1115/1.4038965
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