Non-metallic antenna-support materials

Marlowe, Donald E; Halsey, Nixon; Mitchell, Richard A.; Mordfin, Leonard

doi:10.6028/nbs.ir.73-233

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…(3) driving wedges into the ends of the rods prior to potting. The results of these studies [16] showed no improvement over those obtained with the standard Mod 4 end fitting.…”

Section: Development Of the Mod 4 End Fittingmentioning

confidence: 63%

“…The aluminum-block end fitting was subsequently redesigned [16] in a cylindrical, one-piece configuration, and assigned the laboratory designation H3M. See Figure 9_.…”

Section: Development Of the H3m End Fittingmentioning

confidence: 99%

“…On the basis of the pultruder's experience, plus the results obtained from a preliminary sample which had been manufactured and tested previously [16], constant values were assigned to three additional process parameters for the purposes of this study.…”

Section: Development Of the H3m End Fittingmentioning

confidence: 99%

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Non-metallic antenna-support materials pultruded rods for antenna guys, catenaries and communications structures

Halsey¹,

Marlowe²,

Mitchell³

et al. 1976

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When Government drawings, specifications, or other data are used for any purpose other than in connection with a definitely related Government procurement operation, the United States Government thereby incurs no responsibility nor any obligation whatsoever; and the fact that the Government may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data, is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be related thereto.

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“…(3) driving wedges into the ends of the rods prior to potting. The results of these studies [16] showed no improvement over those obtained with the standard Mod 4 end fitting.…”

Section: Development Of the Mod 4 End Fittingmentioning

confidence: 63%

“…The aluminum-block end fitting was subsequently redesigned [16] in a cylindrical, one-piece configuration, and assigned the laboratory designation H3M. See Figure 9_.…”

Section: Development Of the H3m End Fittingmentioning

confidence: 99%

See 1 more Smart Citation

Non-metallic antenna-support materials pultruded rods for antenna guys, catenaries and communications structures

Halsey¹,

Marlowe²,

Mitchell³

et al. 1976

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“…The required tensile loads were applied to the specimens by 30 000lbf (130-kN) capacity, horizontal, dead-weight, lever-arm, creep-testing machines (Figure 8) which can accomodate tensile specimens up to nine feet (2.7 m) long [3]. The test environments were provided by environmental chambers installed in the machines.…”

Section: Test Equipmentmentioning

confidence: 99%

Fatigue and weatherability studies of aramid-fiber rope slings

Halsey¹,

Mordfin²

1976

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Tests were carried out on twenty-six sling-leg specimens, fabricated from aramid-fiber ropes, as part of a program to develop improved external cargo slings for helicopters. The ropes included both parallel-strand and cab led-strand varieties, in three different tensile capacities. The tests were intended to evaluate the reductions in rope strength caused by fatigue loading and by exposure to simulated weathering. It was found that the fatigue capabilities of some of the ropes may not be entirely satisfactory; but, because of inadequacies in the end fittings installed by the rope manufacturers, thorough evaluations were not possible. The results indicate that the performances of the ropes could be enhanced through the use of more efficient end fittings, and suggestions for the development of such end fittings are offered.

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Failure of high voltage electrical insulators with pultruded glass fibre-reinforced plastic cores

1986

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Non-metallic antenna-support materials

Abstract: A bank of six JUUUU-ibf-capacity creep testing machines was designed and is being assembled. These machines, which will accommodate 9-ft specimens, are equipped with environmental chambers for stress-rupture tests up to 200°F under saturated humidity conditions.

Cited by 3 publications

References 5 publications

Non-metallic antenna-support materials pultruded rods for antenna guys, catenaries and communications structures

Non-metallic antenna-support materials pultruded rods for antenna guys, catenaries and communications structures

Fatigue and weatherability studies of aramid-fiber rope slings

Failure of high voltage electrical insulators with pultruded glass fibre-reinforced plastic cores

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