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Models for the behavior of boron carbide in extreme dynamic environments

Ramesh, K. T. and Graham‐Brady, Lori and Goddard, William A. and Hurley, Ryan C. and Robbins, Mark and Tonge, Andrew L. and Bhattacharjee, Amartya and Clemmer, Joel T. and Zeng, Qinglei and Li, Weixin and Shen, Yidi and An, Qi and Mitra, Nilanjan (2021) Models for the behavior of boron carbide in extreme dynamic environments. Journal of the American Ceramic Society . ISSN 0002-7820. doi:10.1111/jace.18071. (In Press) https://resolver.caltech.edu/CaltechAUTHORS:20210929-223937030

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Abstract

We describe models for the behavior of hot-pressed boron carbide that is subjected to extreme dynamic environments such as ballistic impact. We first identify the deformation and failure mechanisms that are observed in boron carbide under such conditions, and then review physics-based models for each of these mechanisms and the integration of these models into a single physics-based continuum model for the material. Atomistic modeling relates the composition and stoichiometry to the amorphization threshold, while mesoscale modeling relates the processing-induced defect distribution to the fracture threshold. The models demonstrate that the relative importance of amorphization and fracture are strongly dependent on the geometry and impact conditions, with the volume fraction of amorphized material being unlikely to be significant until very high velocities (~3 km/s) are reached for geometries such as ball impact on plates. These connections to the physics thus provide guidelines for the design of improved boron carbide materials for impact applications.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1111/jace.18071DOIArticle
ORCID:
AuthorORCID
Ramesh, K. T.0000-0003-2659-4698
Graham‐Brady, Lori0000-0001-5040-4909
Goddard, William A.0000-0003-0097-5716
Hurley, Ryan C.0000-0003-1652-635X
Robbins, Mark0000-0001-7160-3608
An, Qi0000-0003-4838-6232
Mitra, Nilanjan0000-0003-0639-463X
Additional Information:© 2021 The American Ceramic Society. Version of Record online: 06 September 2021; Accepted manuscript online: 19 August 2021; Manuscript accepted: 18 July 2021; Manuscript revised: 15 July 2021; Manuscript received: 02 May 2021. Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-12-2-0022. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein.
Funders:
Funding AgencyGrant Number
Army Research Laboratory (ARO)W911NF‐12‐2‐0022
Subject Keywords:amorphization; atomistic simulation; boron carbide; continuum models; fracture; granular flow
Other Numbering System:
Other Numbering System NameOther Numbering System ID
WAG1487
DOI:10.1111/jace.18071
Record Number:CaltechAUTHORS:20210929-223937030
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210929-223937030
Official Citation:Ramesh, KT, Graham-Brady, L, Goddard, WA, Hurley, RC, Robbins, M, Tonge, AL, et al. Models for the behavior of boron carbide in extreme dynamic environments. J Am Ceram Soc. 2021; 00: 1–19. https://doi.org/10.1111/jace.18071
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:111104
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Oct 2021 19:16
Last Modified:19 Oct 2021 18:57

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