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contributor authorG. Georgiades
contributor authorS. O. Oyadiji
contributor authorX. Q. Zhu
contributor authorJ. R. Wright
contributor authorJ. T. Turner
date accessioned2017-05-09T00:23:51Z
date available2017-05-09T00:23:51Z
date copyrightOctober, 2007
date issued2007
identifier issn0094-4289
identifier otherJEMTA8-27101#497_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/135803
description abstractThis paper is on the characterization of the mechanical properties of Newtonian-type shock absorbing elastomeric composites. This composite material is a blend of elastomeric capsules or beads in a matrix of a Newtonian liquid. The material can be considered as a liquid analogy to elastomeric foams. It exhibits bulk compression characteristics and acts like an elastic liquid during an impact, unlike elastic foams, which exhibit uniaxial compression characteristics. A test cell consisting of an instrumented metal cylinder and a piston was designed. A sample of the material was placed in the instrumented cylinder, which was located at the base of a drop test rig. A drop mass of 17.3kg was subsequently released from a desired height to impact the piston. From measurements of the acceleration histories of the drop mass and the piston, and from the displacement history of the piston, the force-displacement curves and the associated impact energies absorbed were derived. These are compared to the corresponding characteristics derived from measurements of pressure of the fluid medium inside the cylinder. The results are compared for blends of different bead types, and the different aspects contributing to their performance are discussed. It is shown that the performance curves derived from the accelerometer measurements matched those derived from the pressure measurements. Blends of this composite material of different types of beads showed distinctively different characteristics.
publisherThe American Society of Mechanical Engineers (ASME)
titleCharacterization of the Core Properties of a Shock Absorbing Composite
typeJournal Paper
journal volume129
journal issue4
journal titleJournal of Engineering Materials and Technology
identifier doi10.1115/1.2772323
journal fristpage497
journal lastpage504
identifier eissn1528-8889
keywordsFluids
keywordsComposite materials
keywordsViscosity
keywordsForce
keywordsShock (Mechanics)
keywordsCylinders
keywordsPistons
keywordsStress
keywordsAccelerometers
keywordsPressure
keywordsDrops AND Silicones
treeJournal of Engineering Materials and Technology:;2007:;volume( 129 ):;issue: 004
contenttypeFulltext


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