Energy Absorption and Impact Behavior of Stiffened and Unstiffened Aluminum Panels

reportActive / Technical Report | Accession Number: ADA002709 | Open PDF

Abstract:

The impact behavior of stiffened and unstiffened square aluminum panels under fixed boundary conditions was investigated experimentally and theoretically, and the ultimate energy-absorbing characteristics were determined as a function of geometry. The effect of rigid, closed-cell foam 2-lbcubic foot urethane on an unstiffened panel was also investigated. A geometric scaling law was developed to extrapolate experimental results to sizes needed for the underbody collision protection system fo surface effect vehicles for Arctic operation. Protection levels were determined as a function of allowable vertical impact velocity and craft weight.

Author(s):
Furio, A. J. ; Gilbert, W. E.
Author Organization(s):
DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
Descriptive Note:
Research and Development rept.
Pagination:
0069

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NSRDC-4499
Contract/Grant Number(s):
ARPA, ORDER-1676
Task Number(s):
17934
Project Number(s):
SF43.42.703
Monitor Series:
DARPA
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_5.5_Direct; JCA_4_Logistics; JCA_4.5_Operational Contract Support; JCA_6_Net Centric; JCA_5.3_Planning; JCA_5.5.1_Communicate Intent and Guidance; JCA_4.5.4_Requirements Definition; JCA_6.1.1_Wired Transmission; JCA_5.5.2_Task; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_6.4.1_Secure Information Exchange; JCA_1.4.2_Health Service Delivery; JCA_1.4_Force Support; JCA_4.5.1_Contract Support Integration; JCA_6.1_Information Transport
Modernization Areas:
Quantum Science and Computing
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*ALUMINUM, *IMPACT, *PANELS, *SURFACE EFFECT VEHICLES, ARCTIC REGIONS, DEFLECTION, ENERGY ABSORBERS, LOADS(FORCES), SCALING FACTOR
Field(s)/Group(s):
Surface Effect Vehicles and Amphibious Vehicles
Report Date:
1974 Nov 01