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Title: Synchrotron CT imaging of lattice structures with engineered defects

Abstract

Understanding mechanical failure, crack propagation, and compressive behavior at the micrometer scale is essential for tailoring material properties for structural performance in cellular materials. Typically, modeling of traditional polymer foam materials is clouded by the lack of control in material morphology and its inherent stochastic structure. Additive manufacturing with sub-micrometer resolution provides a direct path for experimenters to specifically tailor structures needed by modelers to explicitly probe mechanical performance. Using laboratory-based 3D X-ray computed tomographic imaging (CT), the examination of deformation and damage provides a critical path to understand how these soft materials behave. Additionally, synchrotron CT yields realistic information at higher strain rates to directly validate the robustness of our finite element modeling. For this study, nanolithographic printing was employed to generate a series of engineered lattices with increasing levels of defects through the random removal of ligaments. These structures were mechanically tested and imaged with laboratory-based microCT. Additionally, synchrotron experiments were conducted in which the structures were imaged in 3D at 14 Hz during compression at a 0.4 s–1 strain rate. These 3D images show the changes in the structure as the ligaments bend, buckle and fracture in real time. This technique provides a robust framework for developingmore » our methodologies and future exploration of engineered structures.« less

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [4];  [4];  [4];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Inst. for Materials Science, Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Arizona State Univ., Tempe, AZ (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1762695
Grant/Contract Number:  
AC02-06CH11357; 89233218NCA000001; RR1600BP
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Materials Science
Additional Journal Information:
Journal Volume: 55; Journal Issue: 25; Journal ID: ISSN 0022-2461
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; x-ray tomography; microlattice; nanolithographic printing; finite element modeling

Citation Formats

Patterson, Brian M., Kuettner, Lindsey, Shear, Trevor, Henderson, Kevin, Herman, Matthew J., Ionita, Axinte, Chawla, Nikhilesh, Williams, Jason, Sun, Tao, Fezzaa, Kamel, Xiao, Xianghui, and Welch, Cynthia. Synchrotron CT imaging of lattice structures with engineered defects. United States: N. p., 2020. Web. doi:10.1007/s10853-020-04840-y.
Patterson, Brian M., Kuettner, Lindsey, Shear, Trevor, Henderson, Kevin, Herman, Matthew J., Ionita, Axinte, Chawla, Nikhilesh, Williams, Jason, Sun, Tao, Fezzaa, Kamel, Xiao, Xianghui, & Welch, Cynthia. Synchrotron CT imaging of lattice structures with engineered defects. United States. https://doi.org/10.1007/s10853-020-04840-y
Patterson, Brian M., Kuettner, Lindsey, Shear, Trevor, Henderson, Kevin, Herman, Matthew J., Ionita, Axinte, Chawla, Nikhilesh, Williams, Jason, Sun, Tao, Fezzaa, Kamel, Xiao, Xianghui, and Welch, Cynthia. 2020. "Synchrotron CT imaging of lattice structures with engineered defects". United States. https://doi.org/10.1007/s10853-020-04840-y. https://www.osti.gov/servlets/purl/1762695.
@article{osti_1762695,
title = {Synchrotron CT imaging of lattice structures with engineered defects},
author = {Patterson, Brian M. and Kuettner, Lindsey and Shear, Trevor and Henderson, Kevin and Herman, Matthew J. and Ionita, Axinte and Chawla, Nikhilesh and Williams, Jason and Sun, Tao and Fezzaa, Kamel and Xiao, Xianghui and Welch, Cynthia},
abstractNote = {Understanding mechanical failure, crack propagation, and compressive behavior at the micrometer scale is essential for tailoring material properties for structural performance in cellular materials. Typically, modeling of traditional polymer foam materials is clouded by the lack of control in material morphology and its inherent stochastic structure. Additive manufacturing with sub-micrometer resolution provides a direct path for experimenters to specifically tailor structures needed by modelers to explicitly probe mechanical performance. Using laboratory-based 3D X-ray computed tomographic imaging (CT), the examination of deformation and damage provides a critical path to understand how these soft materials behave. Additionally, synchrotron CT yields realistic information at higher strain rates to directly validate the robustness of our finite element modeling. For this study, nanolithographic printing was employed to generate a series of engineered lattices with increasing levels of defects through the random removal of ligaments. These structures were mechanically tested and imaged with laboratory-based microCT. Additionally, synchrotron experiments were conducted in which the structures were imaged in 3D at 14 Hz during compression at a 0.4 s–1 strain rate. These 3D images show the changes in the structure as the ligaments bend, buckle and fracture in real time. This technique provides a robust framework for developing our methodologies and future exploration of engineered structures.},
doi = {10.1007/s10853-020-04840-y},
url = {https://www.osti.gov/biblio/1762695}, journal = {Journal of Materials Science},
issn = {0022-2461},
number = 25,
volume = 55,
place = {United States},
year = {Wed May 27 00:00:00 EDT 2020},
month = {Wed May 27 00:00:00 EDT 2020}
}

Works referenced in this record:

Finite-element modeling of trabecular bone: Comparison with mechanical testing and determination of tissue modulus
journal, September 1998


TomoPy: a framework for the analysis of synchrotron tomographic data
journal, August 2014


Impact of material processing and deformation on cell morphology and mechanical behavior of polyurethane and nickel foams
journal, October 2012


A review on 3D micro-additive manufacturing technologies
journal, November 2012


Mapping local deformation behavior in single cell metal lattice structures
journal, May 2017


In situ X-ray synchrotron tomographic imaging during the compression of hyper-elastic polymeric materials
journal, September 2015


On the crushing response of random open-cell foams
journal, October 2012


Ultralight, ultrastiff mechanical metamaterials
journal, June 2014


Elastic constants of cellular structures
journal, June 1997


Rapid, large-volume, thermally controlled 3D printing using a mobile liquid interface
journal, October 2019


Design and Fabrication of Hollow Rigid Nanolattices via Two-Photon Lithography: Design and Fabrication of Hollow Rigid Nanolattices
journal, October 2013


A novel theory of effective mechanical properties of closed-cell foam materials
journal, December 2013


Analysis of thermal history effects on mechanical anisotropy of 3D-printed polymer matrix composites via in situ X-ray tomography
journal, July 2017


Fast iterative reconstruction of data in full interior tomography
journal, January 2017


Failure modes in high strength and stiffness to weight scaffolds produced by Selective Laser Melting
journal, February 2015


Cohesive finite element modeling of the delamination of HTPB binder and HMX crystals under tensile loading
journal, May 2018


Additive manufacturing (3D printing): A review of materials, methods, applications and challenges
journal, June 2018


In Situ Imaging during Compression of Plastic Bonded Explosives for Damage Modeling
journal, June 2017


Defect sensitivity of a 3D truss material
journal, September 2001


A comparison among Neo-Hookean model, Mooney-Rivlin model, and Ogden model for chloroprene rubber
journal, May 2012


20 Hz X-ray tomography during an in situ tensile test
journal, February 2016


The effect of grain size, strain rate, and temperature on the mechanical behavior of commercial purity aluminum
journal, October 2006


Stress–strain behaviour of aluminium alloys at a wide range of strain rates
journal, October 2009


Quantitative X-ray tomography
journal, December 2013


Improving the fracture toughness of 3D printed thermoplastic polymers by fused deposition modeling
journal, December 2017


Continuous liquid interface production of 3D objects
journal, March 2015


Effect of temperature and strain rate on the tensile deformation of polyamide 6
journal, May 2007


Reactive, anomalous compression in shocked polyurethane foams
journal, May 2014


The effect of varying strain rates and stress states on the plasticity, damage, and fracture of aluminum alloys
journal, October 2010


Finite element modelling of the actual structure of cellular materials determined by X-ray tomography
journal, February 2005