skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A comparison of shockwave dynamics in stochastic and periodic porous polymer architectures

Journal Article · · Polymer

Dynamic loading of materials is fundamental in understanding the mechanical response of cellular solids and elucidates time dependent properties that pertain to energy absorption under extreme conditions. Of particular interest is how the discrete behavior of the individual cell in a stochastic foam affects the dynamic shockwave behavior. The deformation mechanism in a stochastic open-cell foam is bending-dominated versus stretch-dominated in periodic lattice structures, resulting in a decrease in the plastic yield stress. We investigate shockwave dynamics in stochastic open-cell foams through phase contrast imaging and finite element modeling. We observe that the distribution of pore sizes and the proximity of each produces a random topology with varying cell wall thicknesses that cause points of high strain creating irregularity in the shock wave at higher impact speeds. The shockwave dynamics of the stochastic foam are compared to periodic additive manufactured (AM) foams with similar density and it can be observed that modulation via microstructural control in elastomer foams has a dramatic effect on shockwave dynamics.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC); LANL Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-06NA25396; AC02-06CH11357
OSTI ID:
1482007
Alternate ID(s):
OSTI ID: 1642271
Report Number(s):
LA-UR-18-26269
Journal Information:
Polymer, Vol. 160; ISSN 0032-3861
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (43)

Ultralight, ultrastiff mechanical metamaterials journal June 2014
Periodic Bicontinuous Composites for High Specific Energy Absorption journal July 2012
Mechanics of deformation-triggered pattern transformations and superelastic behavior in periodic elastomeric structures journal August 2008
Pattern Transformation Triggered by Deformation journal August 2007
Foam Structures with a Negative Poisson's Ratio journal February 1987
Composite materials with poisson's ratios close to — 1 journal July 1992
Designing Metallic Microlattices for Energy Absorber Applications: Designing Metallic Microlattices journal November 2013
Ultralight porous metals: From fundamentals to applications journal October 2002
Multifunctional heat exchangers derived from three-dimensional micro-lattice structures journal April 2012
Review on thermal transport in high porosity cellular metal foams with open cells journal June 2012
Pattern transformation of thermo-responsive shape memory polymer periodic cellular structures journal October 2015
Negative stiffness honeycombs for recoverable shock isolation journal March 2015
Programmable Mechanical Metamaterials journal October 2014
The conflicts between strength and toughness journal October 2011
Tough, Bio-Inspired Hybrid Materials journal December 2008
Topology Optimized Architectures with Programmable Poisson's Ratio over Large Deformations journal August 2015
Multifunctional Topology Design of Cellular Material Structures journal February 2008
Synchrotron-Based X-ray Computed Tomography During Compression Loading of Cellular Materials journal April 2015
In situ X-ray synchrotron tomographic imaging during the compression of hyper-elastic polymeric materials journal September 2015
Application of Fracture Mechanics Concepts to Hierarchical Biomechanics of Bone and Bone-like Materials journal March 2006
3D Soft Metamaterials with Negative Poisson's Ratio journal July 2013
Flexible mechanical metamaterials journal October 2017
Exploiting Microstructural Instabilities in Solids and Structures: From Metamaterials to Structural Transitions journal September 2017
Directed Colloidal Assembly of 3D Periodic Structures journal September 2002
Microperiodic structures: Direct writing of three-dimensional webs journal March 2004
3D Printing of Personalized Artificial Bone Scaffolds journal June 2015
Hybrid 3D Printing of Soft Electronics journal September 2017
In-plane crushing of a hierarchical honeycomb journal May 2016
Shock enhancement of cellular structures under impact loading: Part I Experiments journal December 2007
Mechanically triggered transformations of phononic band gaps in periodic elastomeric structures journal February 2008
Dynamic crushing strength of hexagonal honeycombs journal May 2010
Experiments on Transformation Thermodynamics: Molding the Flow of Heat journal May 2013
Controlling shockwave dynamics using architecture in periodic porous materials journal April 2017
Dynamic Behavior of Engineered Lattice Materials journal June 2016
Three-Dimensional Printing of Elastomeric, Cellular Architectures with Negative Stiffness journal May 2014
3D printed cellular solid outperforms traditional stochastic foam in long-term mechanical response journal April 2016
Measure of morphological and performance properties in polymeric silicone foams by X-ray tomography journal October 2012
Phase transitions under shock-wave loading journal July 1977
Ultrafast, high resolution, phase contrast imaging of impact response with synchrotron radiation journal March 2012
Jet formation in cerium metal to examine material strength journal November 2015
A continuum glassy polymer model applicable to dynamic loading journal October 2012
Harnessing Buckling to Design Tunable Locally Resonant Acoustic Metamaterials journal July 2014
Shock compression of aluminum, copper, and tantalum journal May 1981

Cited By (1)

Shock-Driven Decomposition of Polymers and Polymeric Foams journal March 2019

Similar Records

Controlling shockwave dynamics using architecture in periodic porous materials
Journal Article · Fri Apr 07 00:00:00 EDT 2017 · Journal of Applied Physics · OSTI ID:1482007

3D Printing of Liquid Crystal Elastomer Foams for Enhanced Energy Dissipation Under Mechanical Insult
Journal Article · Mon Dec 28 00:00:00 EST 2020 · ACS Applied Materials and Interfaces · OSTI ID:1482007

Dynamic Behavior of Engineered Lattice Materials
Journal Article · Mon Jun 20 00:00:00 EDT 2016 · Scientific Reports · OSTI ID:1482007

Related Subjects