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Latest News in Testing, Inspection and Certification

NTS News Center - Latest News in Testing, Inspection and Certification

Solicitation Alert: SPEAR Family of Tactical Headborne Systems Coxswain Helmet System

Solicitation Title: SPEAR Family of Tactical Headborne Systems Coxswain Helmet System
Issued by: U.S. Special Operations Command

Solicitation Number: H92222-17-R-027
Solicitation Location: Click here for Solicitation

Issued: 12 May 2017
Response Date: 25 July 2017

Other details/instructions:

  • This is only a pre-solicitation. Final solicitation expected to be released in June 2017.
  • All interested offerors MUST submit a Notice of Intent to submit a proposal in order to obtain the Performance Specification and have their proposal considered by the Government.

Please visit this link for detailed solicitation information and attachments: Click here for Solicitation

Solicitation Primary Point of Contact:
Kelly L. McNeill, kelly.mcneill@socom.mil

Solicitation Secondary Point of Contact:
Laura Fuller, laura.fuller@socom.mil

NTS Wichita and NTS Chesapeake are both NIJ-Certified, ISO/IEC 17025 accredited laboratories with the expertise and availability to perform all ballistic and non-ballistic testing as identified in the Solicitation. Both laboratories have the capacity to accommodate test range needs and provide deliverables within the due dates specified in the Solicitation.

NTS Wichita POC:
Matt Lutz, matthew.lutz@nts.com, 316-832-1600

NTS Chesapeake POCs:
Craig Thomas, craig.thomas@nts.com, 410-297-8154
Kyle North, kyle.north@nts.com, 410-297-8154

The Solicitation Reminder is a service of NTS Wichita and Chesapeake Testing divisions to help our customers uncover Federal Business Opportunities. We hope that you find this a valuable benefit of your partnership with us.

Solicitation Alert: SPEAR Soft Armor Ballistic Inserts

The Solicitation Reminder is a service of NTS Wichita and Chesapeake Testing divisions to help our customers uncover Federal Business Opportunities. We hope that you find this a valuable benefit of your partnership with us.

SPEAR Soft Armor Ballistic Inserts

Solicitation Number: H92222-17-R-0005
Solicitation Location: Click here for Solicitation

Issued: 6 March 2017
Response Date: 4 May 2017

Other details/instructions:

  • As part of each offeror’s proposal, ballistic data must be provided per Tables C-1 and C-2 of Appendix C of the Performance Specification.
  • Offerors will be required to submit Product Demonstration Models (PDMs) with proposal submission for evaluation. See Table C-3 and C-4 of Appendix C of the Performance Specification.
  • All interested offerors MUST submit a Notice of Intent to submit a proposal in order to obtain the Performance Specification and have their proposal considered by the Government.

Please visit this link for detailed solicitation information and attachments: Click here for Solicitation

Solicitation Primary Point of Contact:
Kelly L. McNeill, kelly.mcneil@socom.mil

Solicitation Secondary Point of Contact:
Laura Fuller, laura.fuller@socom.mil

NTS Wichita and NTS Chesapeake are both NIJ-Certified laboratories with the expertise and availability to perform all ballistic and non-ballistic testing as identified in the Solicitation. Both laboratories have the capacity to accommodate test range needs and provide deliverables within the due dates specified in the Solicitation.

NTS Wichita POC:
Matt Lutz, matthew.lutz@nts.com, 316-832-1600

NTS Chesapeake POCs:
Craig Thomas, craig.thomas@nts.com, 410-297-8154
Kyle North, kyle.north@nts.com, 410-297-8154

 

Solicitation Alert: Maritime Security Helmets

Helmet TestingSolicitation Title: Maritime Security Helmets
Issued by: Department of the Navy, NSWC Panama City Division

Solicitation Number: N61331-17-R-0002
Solicitation Location: Click here for Solicitation

Issued: 10 November 2016
Response Date: 16 December 2016

  • The purchase is 100% small business set aside. NAICS: 325211, FSC Code: 8470, Size Standard: 1,250 employees.
  • Proposals are due via email to the POC, Alex Potter, alex.potter@navy.mil
  • The following test data is required in each offeror’s proposal (per Section 3.2, Factor 2 of the RFP):
    • Ballistic test data relevant to the ballistic requirements of the SOW and Attachment J-1
    • Evidence that test data sheets originate from ATC or a National Institude of Justice (NIJ) certified lab
    • 9 mm Resistance to Penetration (RTP) and Ballistic Transient Deformation (BTD) results (Attachment J-1 Section 4.9.11.4 and 4.9.11.5)
    • Dry and ambient V50 testing (Attachment J-1 Section 4.9.11.3): 2-gr RCC, 4-gr RCC, 16-gr RCC, 64-gr RCC, and 17-gr FSP
    • Blunt Impact Protection (Attachment J-1 Section 4.9.13 and Attachment J-2)

Please visit this link for detailed solicitation information and attachments: Click here for Solicitation

Solicitation Primary Point of Contact:
Alex Potter, alex.potter@navy.mil, 850-636-6084

NTS Wichita and NTS Chesapeake are both NIJ-Certified laboratories with the expertise and availability to perform all ballistic and non-ballistic testing as identified in the Solicitation. Both laboratories have the capacity to accommodate test range needs and provide deliverables within the due dates specified in the Solicitation.

NTS Wichita POC:
Matt Lutz, matthew.lutz@nts.com, 316-832-1600

NTS Chesapeake POCs:
Craig Thomas, craig.thomas@nts.com, 410-297-8154
Kyle North, kyle.north@nts.com, 410-297-8154

Methodology for Transient Thermal Analysis of Machine Gun Barrels Subjected to Burst Firing Schedules

Authors: Ryan Hill and Logan McLeod

This work presents a method for simulating the heating of machine gun barrels during burst firings. The method utilizes a two-dimensional axisymmetric finite element model which solves the highly transient convection input on the bore wall, conduction through the barrel, and convective and radiative cooling on the outside wall. The transient input is derived from a coupling of a lumped-parameter interior ballistics code with a one-dimensional compressible flow model which includes the discharge of the combustion product gas behind the projectile. This transient convective boundary condition can be repeated as desired for arbitrary firing schedules. Finally, an example simulation is performed on a small caliber machine gun and compared with experimental data.

Fill out the form below to download a PDF version of this white paper.

Analysis of Inter-Chamber Energy and Mass Transport in High-Low Pressure Gun Systems

Authors: Ryan Hill and Logan McLeod
Two assumptions are often made by lumped-parameter codes in the analysis of dual-chamber guns: (1) that the gas enters the large chamber at the propellant flame temperature, and (2) that the flow between the chambers is that of an ideal gas. An investigation on the effects of these two assumptions was performed by creating three lumped-parameter codes: one that maintains the two assumptions above, and two that conserve flow energy of the gas instead of maintaining a constant temperature. Of the latter two models, one uses an ideal gas and the other uses a noble-abel gas for the flow calculations. In this work, the noble-abel gas equation of state will be discussed in detail as well as its implications to the gas flow. Then, descriptions of the three approaches to the gas flow model will be presented, followed finally by a comparison of simulation results from the three models.

Fill out the form below to download a PDF version of this white paper.

Modeling of Ordnance-Induced Pyrotechnic Shock Testing

pyro shock plateAuthors: Logan McLeod and Santina Tatum

Design of an ordnance-induced pyrotechnic shock test to meet a specific acceleration based Shock Response Spectrum (SRS) test requirement for a given test article has traditionally been an empirical process. Based on experience, the test engineer will determine a potential test configuration and then, through a trial-and-error process, modify the test parameters and configuration until acceptable SRS levels have been achieved. As a complement to this approach, National Technical Systems (NTS) has developed an explicit finite element based modeling approach to simulate an ordnance-induced pyrotechnic shock test. This tool may be used to assist with test configuration design for particularly challenging test requirements or to streamline the process of arriving at acceptable test levels during the calibration phase of a test program.

While others have recognized the value of modeling ordnance-induced pyrotechnic shock, the majority of these efforts have utilized more traditional linear implicit finite element based approaches. The implicit approach suffers from two major challenges: determining a suitable spatio-temporal force/pressure distribution on the resonating plate induced by the explosive charge detonation; and accounting for non-linear material response such as plastic deformation in the primary resonating plate which commonly occurs during an ordnance-induced pyrotechnic shock event. The explicit approach inherently overcomes both of these challenges.

The NTS-developed explicit finite element modeling approach for ordnance-induced pyrotechnic shock testing will be presented along with model predictions for specific test configurations. Predicted results will include the acceleration-time history and corresponding SRS levels for a given location on the mounting shelf. Test data for these test configurations will be presented for comparison with model predictions. Post-processing of the model results in order to facilitate comparison with measured test data will also be discussed.

Fill out the form below to download a PDF version of this white paper.