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Title: Accelerated stress rupture lifetime assessment for fiber composites

Abstract

Objective was to develop a theoretical and experimental framework for predicting stress rupture lifetime for fiber polymer composites based on short-term accelerated testing. Originally a 3-year project, it was terminated after the first year, which included stress rupture experiments and viscoelastic material characterization. In principle, higher temperature, stress, and saturated environmental conditions are used to accelerate stress rupture. Two types of specimens were to be subjected to long-term and accelerated static tensile loading at various temperatures, loads in order to quantify both fiber and matrix dominated failures. Also, we were to apply state-of-the-art analytical and experimental characterization techniques developed under a previous DOE/DP CRADA for capturing and tracking incipient degradation mechanisms associated with mechanical performance. Focus was increase our confidence to design, analyze, and build long-term composite structures such as flywheels and hydrogen gas storage vessels; other applications include advanced conventional weapons, infrastructures, marine and offshore systems, and stockpile stewardship and surveillance. Capabilities developed under this project, though not completed or verified, are being applied to NIF, AVLIS, and SSMP programs.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
461398
Report Number(s):
UCRL-ID-126454
ON: DE97051666
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Feb 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; COMPOSITE MATERIALS; MECHANICAL TESTS; MATERIALS TESTING; POLYMERS; RUPTURES; FIBERS; LIFETIME; FAILURES

Citation Formats

Groves, S.E., DeTeresa, S.J., Sanchez, R.J., Zocher, M.A., and Christensen, R.M.. Accelerated stress rupture lifetime assessment for fiber composites. United States: N. p., 1997. Web. doi:10.2172/461398.
Groves, S.E., DeTeresa, S.J., Sanchez, R.J., Zocher, M.A., & Christensen, R.M.. Accelerated stress rupture lifetime assessment for fiber composites. United States. doi:10.2172/461398.
Groves, S.E., DeTeresa, S.J., Sanchez, R.J., Zocher, M.A., and Christensen, R.M.. Sat . "Accelerated stress rupture lifetime assessment for fiber composites". United States. doi:10.2172/461398. https://www.osti.gov/servlets/purl/461398.
@article{osti_461398,
title = {Accelerated stress rupture lifetime assessment for fiber composites},
author = {Groves, S.E. and DeTeresa, S.J. and Sanchez, R.J. and Zocher, M.A. and Christensen, R.M.},
abstractNote = {Objective was to develop a theoretical and experimental framework for predicting stress rupture lifetime for fiber polymer composites based on short-term accelerated testing. Originally a 3-year project, it was terminated after the first year, which included stress rupture experiments and viscoelastic material characterization. In principle, higher temperature, stress, and saturated environmental conditions are used to accelerate stress rupture. Two types of specimens were to be subjected to long-term and accelerated static tensile loading at various temperatures, loads in order to quantify both fiber and matrix dominated failures. Also, we were to apply state-of-the-art analytical and experimental characterization techniques developed under a previous DOE/DP CRADA for capturing and tracking incipient degradation mechanisms associated with mechanical performance. Focus was increase our confidence to design, analyze, and build long-term composite structures such as flywheels and hydrogen gas storage vessels; other applications include advanced conventional weapons, infrastructures, marine and offshore systems, and stockpile stewardship and surveillance. Capabilities developed under this project, though not completed or verified, are being applied to NIF, AVLIS, and SSMP programs.},
doi = {10.2172/461398},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1997},
month = {Sat Feb 01 00:00:00 EST 1997}
}

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