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Accession Number:
AD0670171
Title:
DYNAMIC TEMPERATURE MEASUREMENT DURING THE AXIAL IMPACT OF ANNEALED ALUMINUM TUBES,
Corporate Author:
KENTUCKY UNIV LEXINGTON DEPT OF ENGINEERING MECHANICS
Report Date:
1968-04-01
Abstract:
Experimental temperature data produced in annealed aluminum tubes during an axial impact of 0.005 seconds duration are presented for strains of magnitudes from 50 to 5,000 microns inin. The results approximately agree with the energy equation reported herein, but the data have a large variation which is attributed to impacts which are not perfectly axial. The temperature associated with the elastic volume changes which occur during plastic deformation is shown to be large compared to the plastic work. The stored energy of the dynamic impact is shown to be of the same order of magnitude as the static stored energy of cold work for annealed aluminum. The test specimen consisted of a short soft section which is ten inches long glued to a long hard aluminum tube of the same cross-section. This type specimen produced a more uniform strain field and permitted heat conduction to be neglected during impact. Author
Pages:
0070
Contract Number:
AF 49(638)-1646
File Size:
0.00MB
