TY - JOUR
T1 - Shock wave propagation in cementitious materials at micro/meso scales
AU - Nelms, Matt
AU - Rajendran, A. M.
AU - Hodo, Wayne
AU - Mohan, Ram V
PY - 2017/1/13
Y1 - 2017/1/13
N2 - Shock wave response of heterogeneous materials like cement and concrete is greatly influenced by the constituents and their statistical distributions. The microstructure of cement is complex due to the presence of unhydrated water, nano/micro pores, and other hydrated and unhydrated products, such as the Calcium Silicate Hydrate (C-S-H) gel, tri-calcium silicate, dicalcium silicate etc. The evolved microstructures at different degrees of hydration are captured using a suite of software that explicitly modeled the chemical compositions of various constituents and their byproducts for a water/cement ratio of 0.4. An evolved microstructure of 50×50×50 micron3 volume of Portland cement product was modeled as a representative volume element (RVE) through a general purpose finite element code, ABAQUS®. The heterogeneity induced shock decay phenomenon under compression in this 50-micron size cube due to an OFHC Copper flyer plate impact is analyzed.
AB - Shock wave response of heterogeneous materials like cement and concrete is greatly influenced by the constituents and their statistical distributions. The microstructure of cement is complex due to the presence of unhydrated water, nano/micro pores, and other hydrated and unhydrated products, such as the Calcium Silicate Hydrate (C-S-H) gel, tri-calcium silicate, dicalcium silicate etc. The evolved microstructures at different degrees of hydration are captured using a suite of software that explicitly modeled the chemical compositions of various constituents and their byproducts for a water/cement ratio of 0.4. An evolved microstructure of 50×50×50 micron3 volume of Portland cement product was modeled as a representative volume element (RVE) through a general purpose finite element code, ABAQUS®. The heterogeneity induced shock decay phenomenon under compression in this 50-micron size cube due to an OFHC Copper flyer plate impact is analyzed.
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U2 - 10.1063/1.4971691
DO - 10.1063/1.4971691
M3 - Conference article
SN - 0094-243X
VL - 1793
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
IS - 120009
M1 - 120009
T2 - 19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015
Y2 - 14 June 2015 through 19 June 2015
ER -