MASTODON: An Open-Source Software for Seismic Analysis and Risk Assessment of Critical Infrastructure. (3rd July 2021)

• Record Type: Journal Article
• Authors: Veeraraghavan, Swetha; Bolisetti, Chandrakanth; Slaughter, Andrew; Coleman, Justin; Dhulipala, Somayajulu; Hoffman, William; Kim, Kyungtae; Kurt, Efe; Spears, Robert; Munday, Lynn
• Is Part Of: Nuclear technology. Volume 207:Number 7(2021)
• Page Start: 1073
• Page End: 1095
• Publication Date: 2021-07-03
• Subjects: Seismic analysis -- probabilistic risk assessment -- soil-structure interaction -- site response analysis -- external hazard; Nuclear engineering -- Periodicals; Nuclear engineering; Nuclear Physics; Periodicals; Periodicals; 621.48
• DOI: 10.1080/00295450.2020.1807282
• Languages: English
• ISSNs: 1943-7471

Abstract

Abstract: Seismic analysis and risk assessment of safety-critical infrastructure like hospitals, nuclear power plants, dams, and facilities handling radioactive materials involve computationally intensive numerical models and coupled multiphysics scenarios. They are also performed in a strict regulatory environment that requires high software quality assurance standards, and in the case of safety-related nuclear facilities, a conformance to the American Society of Mechanical Engineers Nuclear Quality Assurance (NQA-1) standard. This paper introduces the open-source finite-element software, MASTODON (Multi-hazard Analysis of Stochastic Time-Domain Phenomena), which implements state-of-the-art seismic analysis and risk assessment tools in a quality-controlled environment. MASTODON is built on MOOSE (Multi-physics Object-Oriented Simulation Environment), which is a highly parallelizable, NQA-1 conforming, coupled multiphysics, finite-element framework developed at Idaho National Laboratory. MASTODON is capable of fault rupture and source-to-site wave propagation using the domain reduction method, nonlinear site response, and soil-structure interaction analysis, implicit and explicit time integration, automated stochastic simulations, and seismic probabilistic risk assessment. When coupled with other MOOSE applications, MASTODON can also solve strongly and weakly coupled multiphysics problems. This paper presents a summary of the capabilities of MASTODON and some demonstrative examples.