Constitutive modeling of Radiation effects on the Permanent Set in a silicone elastomer

Maiti, A; Gee, R; Weisgraber, T; Chinn, S; Maxwell, R

doi:10.1016/j.polymdegradstab.2008.05.023

Title: Constitutive modeling of Radiation effects on the Permanent Set in a silicone elastomer

Journal Article · Mon Mar 10 00:00:00 EDT 2008 · Polymer Degradation and Stability

DOI:https://doi.org/10.1016/j.polymdegradstab.2008.05.023· OSTI ID:945133

Maiti, A; Gee, R; Weisgraber, T; Chinn, S; Maxwell, R

When a networked polymeric composite under high stress is subjected to irradiation, the resulting chemical changes like chain scissioning and cross-link formation can lead to permanent set and altered elastic modulus. Using a commercial silicone elastomer as a specific example we show that a simple 2-stage Tobolsky model in conjunction with Fricker's stress-transfer function can quantitatively reproduce all experimental data as a function of radiation dosage and the static strain at which radiation is turned on, including permanent set, stress-strain response, and net cross-linking density.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 945133

Report Number(s):: LLNL-JRNL-402192; PDSTDW; TRN: US200902%%1236

Journal Information:: Polymer Degradation and Stability, Vol. 93, Issue 12; ISSN 0141-3910

Country of Publication:: United States

Language:: English

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Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CROSS-LINKING
ELASTOMERS
IRRADIATION
RADIATION EFFECTS
RADIATIONS
SILICONES
SIMULATION
STRAINS

Title: Constitutive modeling of Radiation effects on the Permanent Set in a silicone elastomer

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References (16)

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