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http://dx.doi.org/10.7735/ksmte.2014.23.2.145

Development and Durability Evaluation of a Bimaterial Composite Frame by Pultrusion Process  

Lee, Haksung (Korea Institute of Carbon Convergence Technology, Advanced Material Research Division)
Kang, Shinjae (Korea Institute of Carbon Convergence Technology, Advanced Material Research Division)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.23, no.2, 2014 , pp. 145-151 More about this Journal
Abstract
Recently, the growing demand for weight reduction and improved structure durabilityfor commercial vehicles has led to active research into the development and application of suitablecomposite materials. This studysuggests abimaterial composite frame produced by apultrusion process to replace steel frames. We focused on the development of a composite frameconsisting of two types of materialsby mixing anorthotropic material with anisotropic material. The inside layer consisted of an aluminum pipe, and the outside layer was composed of a glass fiber pipe. To determine the strength and failure mechanisms of the composite material, tensile tests, shear tests, and three-point bending tests were conducted, followed by fatigue tests. After static testing, the fatigue tests were conducted at a load frequency of 5 Hz, a stress ratio (R) of 0.1, and an endurance limit of $10^6$ for the S-N curve. The resultsshowed that the failure modes were related to both the core design and the laminating conditions.
Keywords
Composite frame; Bimaterials composite; Pultrusion mechanism; Hydro actuator; Fatigue test; S-N curve;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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