Aashay Arora

Dr. Aashay Arora

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2021 in Cement and Concrete Composites
Verified
Journal Article
Closed access
BMBarzin Mobasher
Barzin Mobasher
ALAnling LI
Anling LI
YYYiming Yao
Yiming Yao
AAAashay Arora
Aashay Arora
NNNarayanan Neithalath
Narayanan Neithalath

25 January 2026 in Applied Sciences
Verified
Journal Article
Open access
PDF file
PYPu Yang
Pu Yang
AAAashay Arora
Aashay Arora
CHChristian G. Hoover
Christian G. Hoover
BMBarzin Mobasher
Barzin Mobasher
NNNarayanan Neithalath
Narayanan Neithalath
This study addresses a key limitation in meso-scale discrete element modeling (DEM) of ultra-high performance concrete (UHPC). Most existing DEM frameworks rely on extensive macroscopic calibration and do not provide a clear, transferable pathway to derive contact law parameters from measurable micro-scale properties, limiting reproducibility and physical interpretability. To bridge this gap, we develop and validate a micro-indentation-informed, poromechanics-consistent calibration framework that links UHPC phase-level micromechanical measurements to a flat-joint DEM contact model for predicting uniaxial compression, direct tension, and flexural response. Elastic moduli and Poisson’s ratios of the constituent phases are obtained from micro-indentation and homogenization relations, while cohesion (c) and friction angle (α) are inferred through a statistical treatment of the indentation modulus and hardness distributions. The tensile strength limit (σₜ) is identified by matching the simulated flexural stress–strain peak and post-peak trends using a parametric set of (c, α, σₜ) combinations. The resulting DEM model reproduces the measured UHPC responses with strong agreement, capturing (i) compressive stress–strain response, (ii) flexural stress–strain response, and (iii) tensile stress–strain response, while also recovering the experimentally observed failure modes and damage localization patterns. These results demonstrate that physically grounded micro-scale measurements can be systematically upscaled to meso-scale DEM parameters, providing a more efficient and interpretable route for simulating UHPC and other porous cementitious composites from indentation-based inputs.

27 September 2022 in arXiv
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Preprint
Open access
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FWFrank Würthwein
Frank Würthwein
JGJonathan Guiang
Jonathan Guiang
AAAashay Arora
Aashay Arora
DDDiego Davila
Diego Davila
JGJohn Graham
John Graham
CGChin Guok
Chin Guok
Unique scientific instruments designed and operated by large global collaborations are expected to produce Exabyte-scale data volumes per year by 2030. These collaborations depend on globally distributed storage and compute to turn raw data into science. While all of these infrastructures have batch scheduling capabilities to share compute, Research and Education networks lack those capabilities. There is thus uncontrolled competition for bandwidth between and within collaborations. As a result, data "hogs" disk space at processing facilities for much longer than it takes to process, leading to vastly over-provisioned storage infrastructures. Integrated co-scheduling of networks as part of high-level managed workflows might reduce these storage needs by more than an order of magnitude. This paper describes such a solution, demonstrates its functionality in the context of the Large Hadron Collider (LHC) at CERN, and presents the next-steps towards its use in production.