The Use of Physical Models in Development of the M-X Protective Shelter PDF Download
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Category :
Languages : en
Pages : 28
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Book Description
The design candidate M-X protective shelters made extensive use of engineering data developed from tests on physical models. This paper describes the effort associated with structural hardening of the three principal M-X shelter concepts: Horizontal Shelter, Vertical Shelter, and Shallow Buried TRench. Primary emphasis was on the trench concept in which a highly coordinated program of theory and experiment provided the data base for (1) characterization of the airblast loading within the trench structure (i.e., shallow buried tube), (2) feasibility determination of blast plug concepts, and (3) developing a minimum cost design for the hardened shallow buried tube. The experimental activities supporting this effort included laboratory and field shock tube testing, high explosive field testing, and an underground nuclear test. Most innovative, from a structural enginneering perspecitve, was the modeling of (1) coupled airblast and ground shock loading and damage-level response of shallow buried fiber-reinforced concrete tubes, (2) expansion and venting of the tube under internal airblast loading, and (3) coupled flow-structural response of the plug/tube system.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
The design candidate M-X protective shelters made extensive use of engineering data developed from tests on physical models. This paper describes the effort associated with structural hardening of the three principal M-X shelter concepts: Horizontal Shelter, Vertical Shelter, and Shallow Buried TRench. Primary emphasis was on the trench concept in which a highly coordinated program of theory and experiment provided the data base for (1) characterization of the airblast loading within the trench structure (i.e., shallow buried tube), (2) feasibility determination of blast plug concepts, and (3) developing a minimum cost design for the hardened shallow buried tube. The experimental activities supporting this effort included laboratory and field shock tube testing, high explosive field testing, and an underground nuclear test. Most innovative, from a structural enginneering perspecitve, was the modeling of (1) coupled airblast and ground shock loading and damage-level response of shallow buried fiber-reinforced concrete tubes, (2) expansion and venting of the tube under internal airblast loading, and (3) coupled flow-structural response of the plug/tube system.
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Category : Shock (Mechanics)
Languages : en
Pages : 618
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Author:
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ISBN:
Category : Shock (Mechanics)
Languages : en
Pages : 616
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Author:
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ISBN:
Category :
Languages : en
Pages : 440
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Contents: The Use of Physical Models in Development of the MX protective Shelter; Testing of Reduced-Scale Concrete MX-Shelters - Specimen Construction; Testing of Reduced-Scale Concrete MX-Shelters - Experimental Program; Testing of Reduced-Scale Concrete MX-Shelters - Instrumentation and Load Control; Blast and Shock Field Test Management; A Comparison of Nuclear Simulation Techniques on Generic MX Structures; Instrumentation for Protective Structures Testing; Finite Element Dynamic Analysis of the DCT-2 Model E; MX basing Development Derived from H.E. Testing; 1/5 Size VHS Series Blast and Shock Simulations; Small-Scale Tests of MX Vertical Shelter Structures; Laboratory Investigation of Expansion, Venting, and Shock Attenuation in the MX Trench; Dynamic Cylinder Test Program; Protective Vertical Shelters; and Determination of Soil Properties Through Ground Motion Analysis.
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Category : Power resources
Languages : en
Pages : 520
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 632
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Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.
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ISBN:
Category : Science
Languages : en
Pages : 1378
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309264146
Category : Social Science
Languages : en
Pages : 421
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Book Description
The United States is among the wealthiest nations in the world, but it is far from the healthiest. Although life expectancy and survival rates in the United States have improved dramatically over the past century, Americans live shorter lives and experience more injuries and illnesses than people in other high-income countries. The U.S. health disadvantage cannot be attributed solely to the adverse health status of racial or ethnic minorities or poor people: even highly advantaged Americans are in worse health than their counterparts in other, "peer" countries. In light of the new and growing evidence about the U.S. health disadvantage, the National Institutes of Health asked the National Research Council (NRC) and the Institute of Medicine (IOM) to convene a panel of experts to study the issue. The Panel on Understanding Cross-National Health Differences Among High-Income Countries examined whether the U.S. health disadvantage exists across the life span, considered potential explanations, and assessed the larger implications of the findings. U.S. Health in International Perspective presents detailed evidence on the issue, explores the possible explanations for the shorter and less healthy lives of Americans than those of people in comparable countries, and recommends actions by both government and nongovernment agencies and organizations to address the U.S. health disadvantage.
Author: United States. Defense Logistics Studies Information Exchange
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 934
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Author:
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ISBN:
Category : Electronic government information
Languages : en
Pages : 348
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