Universal testing machine of 12-million-lbf capacity at the National Bureau of Standards

Kirstein, Arthur F

doi:10.6028/nbs.sp.355

Cited by 2 publications

(2 citation statements)

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“…Above 4.448 MN, NIST provides compression calibrations up to 53 MN by comparison with NIST transfer standard strain gage load cells using a 53 MN capacity universal testing machine shown schematically in Fig. 10 [ 33 ]. For this purpose, NIST maintains a set of three 4.448 MN NIST transfer standards, each calibrated in the 4.448 MN deadweight machine, and a set of four 13 MN transfer standards each calibrated by comparison with three 4.448 MN transfer standards.…”

Section: Force Metrologymentioning

confidence: 99%

The kilogram and measurements of mass and force

Jabbour¹,

Yaniv²

2001

J. Res. Natl. Inst. Stand. Technol.

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This paper describes the facilities, measurement capabilities, and ongoing research activities in the areas of mass and force at the National Institute of Standards and Technology (NIST). The first section of the paper is devoted to mass metrology and starts with a brief historical perspective on the developments that led to the current definition of the kilogram. An overview of mass measurement procedures is given with a brief discussion of current research on alternative materials for mass standards and surface profiles of the U.S. national prototype kilograms. A brief outlook into the future possible redefinition of the unit of mass based on fundamental principles is included. The second part of this paper focuses on the unit of force and describes the realization of the unit, measurement procedures, uncertainty in the realized force, facilities, and current efforts aimed at the realization of small forces.

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Section: Force Metrologymentioning

confidence: 99%

The kilogram and measurements of mass and force

Jabbour¹,

Yaniv²

2001

J. Res. Natl. Inst. Stand. Technol.

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“…The vehicle support frame was attached to the tie-down floor system which is incorporated in the foundation of this machine during the drop tests. 4.…”

Section: Universal Testing Machinementioning

confidence: 99%

Crush characteristics of automobile structural components

Robinson¹

1975

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Static and dynamic test procedures were developed for evaluating the crush characteristics of automotive structural components which perform a major structural function in side impacts. Laboratory tests were conducted on several 1969 to 1971 4-door intermediate size automobiles to evaluate the crush characteristics of some of their structural components. Static crush tests were conducted in the 12-mil 1 ion-lbf capacity universal testing machine at the National Bureau of Standards, employing its large working space. The dynamic tests were conducted using the monorails attached to the sensitive crosshead and the tie-down floor system which is incorporated in the foundation of this machine. The crush loads were applied perpendicular to the vehicle side for each of the tests. The response of the structural components was established based on the evaluation of displacement and/or strain measurements and detailed examination of the permanently deformed components following each test. Empirical factors were obtained which are useful for comparison of static and dynamic crush characteristics of a vehicle side door structure over a limited loading range. Further development of the test procedures is required in order to extend the range over which such results would be meaningful.

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Universal testing machine of 12-million-lbf capacity at the National Bureau of Standards

Abstract: that the NBS staff has optimum accessibility to the scientific information of the world, and directs the public information activities of the Bureau. The Office consists of the following organizational units:

Cited by 2 publications

References 1 publication

The kilogram and measurements of mass and force

The kilogram and measurements of mass and force

Crush characteristics of automobile structural components

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