Dynamic Behavior of Metals Under Tensile Impact. Part II: Annealed and Cold Worked Materials.

Item

Title
Dynamic Behavior of Metals Under Tensile Impact. Part II: Annealed and Cold Worked Materials.
Description
The mechanical behavior of metals subjected to uniaxial tensile impact at room temperature is reported. Tests were conducted on 1100 aluminum subjected to light and to heavy, cold working; 2024 aluminum after annealing and after light and heavy cold working; C1010 steel in these same three conditions; and OFHC copper and 70-30 brass in an annealed state. In five of the ten series the materials were found to possess dynamic stress-strain curves which fell below the static curves. The yield point of the steel was lowered by impact loading. Ratios of dynamic to static ultimate stress were found to range from 0.59 to 1.3.
Date
1969
Index Abstract
Not Available
Photo Quality
Not Needed
Report Number
AFML TR 69-76 Part II
Creator
Schultz, Albert B.
Corporate Author
University of Illinois at Chicago Circle, Department Of Materials Engineering
Laboratory
Air Force Materials Laboratory
Extent
46
Identifier
AD0857984
AD0857984
Access Rights
Export Controls
Distribution Classification
1
Contract
F33615-67-C-1283
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
AFML USAF LTR
Report Availability
Full text available
DoD Project
7351 - Metallic Materials
DoD Task
735106 - Behavior of Metals
Date Issued
1969-06
Abstract
The mechanical behavior of metals subjected to uniaxial tensile impact at room temperature is reported. Tests were conducted on 1100 aluminum subjected to light and to heavy, cold working; 2024 aluminum after annealing and after light and heavy cold working; C1010 steel in these same three conditions; and OFHC copper and 70-30 brass in an annealed state. In five of the ten series the materials were found to possess dynamic stress-strain curves which fell below the static curves. The yield point of the steel was lowered by impact loading. Ratios of dynamic to static ultimate stress were found to range from 0.59 to 1.3.
Type
report
Provenance
Lockheed Martin Missiles & Fire Control
Format
1 online resource (v, 39 pages) : ill.
Publisher
Wright-Patterson Air Force Base, OH : Air Force Materials Laboratory, Air Force Systems Command, United States Air Force
Date Modified
Scanned by request 5/12/2002 submitted by JAHM Software, Inc. (Other Industry - Domestic)
Distribution Conflict
No
Media
AFMLTR69-076part02.pdf