Appendix D

Report Sections
Cross-Referenced to the Statement of Task


Original Statement of Task for Phases I, II, and III (See Box 1-1)

Phase III Report Chapter or Appendix
The National Research Council will convene specialists in committee form to consider the technical issues relating to the testing of body armor. To do this the National Research Council shall conduct a three-phase study:

 

In Phase I a committee will comment on the validity of using laser-profilometry/laser-interferometry techniques to determine the contours of an indent made by a ballistic test in a nontransparent clay material at the level of precision established in the Army’s procedures for testing personal body armor. If laser-profilometry/laser-interferometry is not a valid method, the committee will consider whether a digital caliper can be used instead to collect valid data.

Phase I letter report was submitted on December 30, 2009. Findings are listed in Appendix K.

Chapter 5

    The committee will also provide interim observations regarding the column drop performance test described by the Army for assessing the part-to-part consistency of a clay body used in testing body armor.


Appendix K

Chapter 4

    The committee will prepare a letter report documenting the findings from its Phase I considerations. This is a 6-week effort beginning November 1, 2009, and ending mid December 2009.



Phase I letter report was submitted on December 30, 2009. Findings are in Appendix K.



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PREPUBLICATION DRAFT—SUBJECT TO EDITORIAL CORRECTION Appendix D Report Sections Cross-Referenced to the Statement of Task Original Statement of Task for Phases I, II, and III Phase III Report (See Box 1-1) Chapter or Appendix The National Research Council will convene specialists in committee form to consider the technical issues relating to the testing of body armor. To do this the National Research Council shall conduct a three-phase study: In Phase I a committee will comment on the validity of Phase I letter report was using laser-profilometry/laser-interferometry techniques submitted on December 30, to determine the contours of an indent made by a 2009. Findings are listed in ballistic test in a nontransparent clay material at the Appendix K. level of precision established in the Army’s procedures for testing personal body armor. If laser- Chapter 5 profilometry/laser-interferometry is not a valid method, the committee will consider whether a digital caliper can be used instead to collect valid data. The committee will also provide interim Appendix K observations regarding the column drop performance test described by the Army for Chapter 4 assessing the part-to-part consistency of a clay body used in testing body armor. The committee will prepare a letter report Phase I letter report was documenting the findings from its Phase I submitted on December 30, considerations. This is a 6-week effort beginning 2009. Findings are in November 1, 2009, and ending mid December Appendix K. 2009. -269-

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PREPUBLICATION DRAFT—SUBJECT TO EDITORIAL CORRECTION In Phase II a committee will consider in greater detail Phase II letter report was the validity of using the column drop performance test submitted on April 22, 2010. described by the Army for assessing the part-to-part Recommendations are in consistency of a clay body within the level of precision Appendix L. that is identified by the Army test procedures. The committee will prepare a letter report Phase II letter report was documenting the findings from its Phase II submitted on April 22, 2010. considerations. This is a 6-week effort beginning Recommendations are in November 1, 2009, and ending early February, Appendix L. 2010. In Phase III a committee will consider test materials, protocols, and standards that should be used for future testing of personal armor by the Army. The committee will also consider any other issues Throughout the report and associated with body armor testing that the summarized in Appendix F. committee considers relevant, including issues raised in the Government Accountability Office report Warfighter Support, Independent Expert Assessment of Body Armor Test Results and Procedures Needed Before Fielding (GAO-10-119). The committee will prepare a final report. This is a This report constitutes the 14-month effort beginning November 1, 2009, and Phase III final report. ending January 2011. The final report will document the committee’s findings pertaining to the following issues that are of particular immediate concern to DOT&E. The best methods for obtaining consistency of the Chapter 4 clay, and for conditioning and calibrating the clay backing used currently to test armor. The best instrumentation (e.g., laser scanning Chapter 5 system, digital caliper, etc.) and procedures to use to measure the backface deformation (BFD) in the clay. The appropriate use of statistical techniques (e.g., Chapter 6 rounding numbers, choosing sample sizes, or test Appendixes H, I, and M designs) in gathering the data. -270-

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PREPUBLICATION DRAFT—SUBJECT TO EDITORIAL CORRECTION The appropriate criteria to apply to determine Chapter 2 whether body armor plates can provide needed Appendix F protection to soldiers; this includes the proper prescription for determining whether a test results in a partial or complete penetration of body armor, including, as appropriate, the soft armor underlying hard armor. The final report will also document the committee’s Appendix C. See additional findings regarding any other issues regarding body taskings below. armor testing that the committee found relevant. The study team will have access to all data with respect to body armor testing that the team needs for the conduct of the study. Additional Phase III Taskings Received From Phase III Report DOT&E (See Appendix C) Chapter or Appendix Provide a roadmap to reduce variability of clay Chapters 4 and 9 processes and for how to migrate from clay to future solutions. Consider the use of statistics to permit a more Chapter 6 scientific determination of sample sizes to be used in body armor testing. Specifically, the committee was requested to review a statistically based protocol that had been developed by DOT&E with assistance from Army statisticians and testers. Within the time and funding available, review and Chapter 7 comment on methodologies and technical approaches to military helmet testing. Develop ideas for revising/replacing the Prather Chapters 8 and 9 study methodology. Consider the possibility of combining various Chapter 9 national body armor testing standards. -271-