Energy Dissipation Characteristics in Pre-strained Silicone Foam Transitioning to Silicone Rubber

Sanborn, Brett; Song, Bo

doi:10.1007/s40870-019-00183-1

Energy Dissipation Characteristics in Pre-strained Silicone Foam Transitioning to Silicone Rubber

Journal Article · Mon Feb 25 00:00:00 EST 2019 · Journal of Dynamic Behavior of Materials

DOI:https://doi.org/10.1007/s40870-019-00183-1· OSTI ID:1498485

^[1]; Song, Bo ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Silicone foam is used as a shock mitigation material in a variety of systems to protect internal components from being damaged during external shock or impact loading. Characterizing the shock mitigation response of silicone foam under a variety of scenarios is a critical step in designing and/or evaluating new shock mitigation systems. In this study, a Kolsky bar with precompression capability was used with a passive radial confinement tube to subject the sample to various levels of pre-strain followed by impact loading. The effects of both pre-strain and impact velocity on impact energy dissipation behavior were investigated for silicone foam. The energy dissipation response of silicone foam is compared to a silicone rubber manufactured using the same processing methods to understand the energy dissipation characteristics of silicone foams transitioning to a silicone rubber. The final density of the foam or rubber plays a key role in both the total energy dissipation ratio in the time domain and the energy dissipation ratio as a ftinction of frequency in the frequency domain.

Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1498485

Report Number(s):: SAND--2018-12106J; 668992

Journal Information:: Journal of Dynamic Behavior of Materials, Journal Name: Journal of Dynamic Behavior of Materials Journal Issue: 1 Vol. 5; ISSN 2199-7446

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Related Subjects

36 MATERIALS SCIENCE
Kolsky bar
energy dissipation
frequency response
rubber
shock mitigation
silicone foam

Energy Dissipation Characteristics in Pre-strained Silicone Foam Transitioning to Silicone Rubber

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