DYNAMIC ENERGY-ABSORBING CHARACTERISTICS OF LIGHTWEIGHT VERMICULITE CONCRETE

reportActive / Technical Report | Accession Number: AD0262727 | Open PDF

Abstract:

The dynamic energy-absorption characteristics of confined lightweight vermiculite concrete are presented in the form of stress-strain and stress-time curves. In addition, data are included which show the effects of impact velocity and impact mass weight on these characteristics. Stress-strain and energy-absorption characteristics are discussed. A comparison is made between a dynamic and a static stress-strain curve for this material. For a cement to vermiculite mix of 1 to 8, the initial peak crushing stress is between 420 and 570 psi, and the average crushing stress to 30 strain is between 350 and 450 psi. The energy dissipated to 30 strain is between 8.8 and 10.9 ft-lbcu in.

Author(s):
Covington, Clarke
Author Organization(s):
TEXAS UNIV AT AUSTIN STRUCTURAL MECHANICS RESEARCH LAB
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DASA-1238
Contract/Grant Number(s):
DA-49-146-XZ-28
Monitor Series:
1238, DASA
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_1.2.5_Lessons Learned; JCA_6.1.3_Switching and Routing; JCA_4.6_Engineering; JCA_5_Command and Control
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*SHELTERS, *CONCRETE, *IMPACT SHOCK, *UNDERGROUND STRUCTURES, STRESS STRAIN RELATIONS, NUCLEAR EXPLOSIONS, DEFORMATION, SHOCK WAVES, VULNERABILITY, VIBRATION ISOLATORS, TEST METHODS, CEMENTS, CLAY MINERALS, CONSTRUCTION, ABSORPTION, BLAST
Field(s)/Group(s):
Construction Equipment, Materials and Supplies, Mechanics
Keyword(s):
VERMICULITE
Report Date:
1961 Jun 01