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PSAM 16 Conference Paper Overview

Welcome to the PSAM 16 Conference paper and speaker overview page.

Lead Author: W. Gary W. Rivera Co-author(s): Emily Sandt, esandt@sandia.gov
Evaluation and Analysis of Person-Passable Openings Through Security Boundaries
Researchers at Sandia National Laboratories, in conjunction with the Nuclear Energy Institute and Light Water Reactor Sustainability (LWRS) Programs, have been conducted testing and analysis to reevaluate and redefine the minimum passable opening size through which a person can effectively pass and navigate. Physical testing with a representative population has been performed on both simple two-dimensional (rectangular and circular cross sections up to 36-inch in depth) and more complex three-dimensional (circular cross sections of longer lengths and changes in direction) opening configurations. The primary impact of this effort is to define the scenarios in which an adversary could successfully pass through a potentially complex opening, as well as define the scenarios in which an adversary would not be expected to successfully traverse a complex opening. This data can then be used to support risk-informed decision-making. At its inception, the project intended to investigate openings that could be found to intersect security boundary layers (e.g., drainage culvert), but through careful experimental design, the testing has sought to further understand the delay characteristics of engineered openings (e.g., piping systems), as well as potential breach points (e.g., cutting through a wall or door).

Paper WG301 Preview

Author and Presentation Info

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Lead Author Name: W. Gary Rivera (wgriver@sandia.gov)

Bio: Gary Rivera first joined Sandia National Laboratories in 1989 as an engineering intern conducting explosives and rocket testing. He completed his Bachelors in Mechanical Engineering from Northern Arizona University, then his Masters from the University of Notre Dame. After a short stint with Lockheed Martin working on modern artillery systems, he returned to Sandia as Staff Member in the Explosive Technology Group where he conducted explosive impulse testing, and led the Light Initiated High Explosive Facility. Gary received his PhD in Materials Engineering in 2006 from the New Mexico Institute of Mining and Technology, and taught explosive engineering classes as an adjunct professor from 2007 to 2019. For the last 14 years, Gary has has been a member of the Access Delay and structural assessment department, conducting access delay testing, analysis, and mentoring of up and coming staff.

Country: United States of America
Company: Sandia National Laboratories
Job Title: Principal Member of Technical Staff

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