Static properties and multiaxial strength criterion for design of composite automotive structures

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Description

The Durability of Lightweight Composite Structures Project was established at Oak Ridge National Laboratory (ORNL) by the US Department of Energy to provide the experimentally-based, durability-driven design guidelines necessary to assure long-term structural integrity of automotive composite components. The initial focus of the ORNL Durability Project was on one representative reference material -- an isocyanurate (polyurethane) reinforced with continuous strand, swirl-mat E-glass. The present paper describes tensile, compressive, flexure, and shear testing and results for the reference composite. Behavioral trends and proportional limit are established for both tension and compression. Damage development due to tensile loading, strain rate effects, and ... continued below

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7 p.

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Ruggles, M.B.; Yahr, G.T. & Battiste, R.L. November 1, 1998.

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Description

The Durability of Lightweight Composite Structures Project was established at Oak Ridge National Laboratory (ORNL) by the US Department of Energy to provide the experimentally-based, durability-driven design guidelines necessary to assure long-term structural integrity of automotive composite components. The initial focus of the ORNL Durability Project was on one representative reference material -- an isocyanurate (polyurethane) reinforced with continuous strand, swirl-mat E-glass. The present paper describes tensile, compressive, flexure, and shear testing and results for the reference composite. Behavioral trends and proportional limit are established for both tension and compression. Damage development due to tensile loading, strain rate effects, and effects of temperature are discussed. Furthermore, effects on static properties of various fluids, including water at room and elevated temperatures, salt water, antifreeze, windshield washer fluid, used motor oil, battery acid, gasoline, and brake fluid, were investigated. Effects of prior loading were evaluated as well. Finally, the effect of multiaxial loading on strength was determined, and the maximum shear strength criterion was identified for design.

Physical Description

7 p.

Notes

OSTI as DE99000209

Source

  • 13. annual ESD advanced composite technology conference and exposition, Detroit, MI (United States), 28-29 Sep 1998

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  • Other: DE99000209
  • Report No.: ORNL/CP--99199
  • Report No.: CONF-980943--
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/290934 | External Link
  • Office of Scientific & Technical Information Report Number: 290934
  • Archival Resource Key: ark:/67531/metadc684934

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  • November 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 21, 2016, 12:32 p.m.

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Ruggles, M.B.; Yahr, G.T. & Battiste, R.L. Static properties and multiaxial strength criterion for design of composite automotive structures, report, November 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc684934/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.