Fatigue Life Modeling&Simulation of Elastomer-Polymer Materials

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$364,988.00
Award Year:
2011
Program:
SBIR
Phase:
Phase II
Contract:
W56HZV-11-C-0202
Award Id:
n/a
Agency Tracking Number:
A2-4441
Solicitation Year:
2009
Solicitation Topic Code:
A09-198
Solicitation Number:
2009.3
Small Business Information
6749 SR 12 W, Findlay, OH, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
021297238
Principal Investigator:
William Mars
President
(419) 957-0543
wvmars@endurica.com
Business Contact:
Linda Mars
Officer Manager
(419) 957-0544
lrmars@endurica.com
Research Institute:
Stub




Abstract
Engineering and qualifying a rubber component for dynamic applications is often time-consuming and expensive due to the need to control fatigue failure. Endurica"s Phase I project demonstrated feasibility of using numerical simulation of rubber"s failure process to compute effects of material properties, component geometry, and applied duty cycle. Through simulation, Endurica provides means to evaluate fatigue performance before costs of component testing start to accrue. Funding Endurica"s Phase II proposal will enable the implementation, testing, and productization of a wide range of capabilities useful for simulating fatigue failure of rubber components. The final deliverable will include the ability to analyze multiaxial, variable amplitude duty cycles, to consider the unique material characteristics of rubber (inclusive of temperature effects), and to account for self-heating of the rubber under the action of dynamic loading. The code will include a user-oriented, menu-driven interface. Using the new tool, a case study will be made of a tank track backer pad. The backer pad material will be fully characterized, and finite element analysis of its mechanical and thermal behavior will be run to determine strain history and operating temperature. Fatigue life predictions of the backer pad will be compared with experimental observations.

* information listed above is at the time of submission.

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