In-situ property measurements on laser-drawn strands of SL 5170 epoxy and SL 5149 acrylate

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Description

Material behavior plays a significant role in the mechanics leading to internal stresses and, potentially, to distortion (curling) of parts as they are built by stereolithography processes that utilize photocuring resins. A study is underway to generate material properties that can be used to develop phenomenological material models of epoxy and acrylate resins. Strand tests are performed in situ in a 3D System`s SLA-250 machine; strands are drawn by either single or multiple exposures of the resin to a laser beam. Linear shrinkage, cross-sectional areas, cure shrinkage forces and stress-strain data are presented. Also, the curl in cantilever beam specimens, ... continued below

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8 p.

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Guess, T.R. & Chambers, R.S. August 1, 1995.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Material behavior plays a significant role in the mechanics leading to internal stresses and, potentially, to distortion (curling) of parts as they are built by stereolithography processes that utilize photocuring resins. A study is underway to generate material properties that can be used to develop phenomenological material models of epoxy and acrylate resins. Strand tests are performed in situ in a 3D System`s SLA-250 machine; strands are drawn by either single or multiple exposures of the resin to a laser beam. Linear shrinkage, cross-sectional areas, cure shrinkage forces and stress-strain data are presented. Also, the curl in cantilever beam specimens, built with different draw patterns, are compared.

Physical Description

8 p.

Notes

OSTI as DE95016086

Source

  • 6. solid freeform fabrication symposium, Austin, TX (United States), 7-9 Aug 1995

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  • Other: DE95016086
  • Report No.: SAND--95-0892C
  • Report No.: CONF-9508149--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 100151
  • Archival Resource Key: ark:/67531/metadc620642

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 8:34 p.m.

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Guess, T.R. & Chambers, R.S. In-situ property measurements on laser-drawn strands of SL 5170 epoxy and SL 5149 acrylate, article, August 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc620642/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.