Fracture Behaviour Under Impact 2

reportActive / Technical Report | Accession Number: ADA198643 | Open PDF

Abstract:

The behaviour of cracks loaded by impact generated stress pulses is investigated. Depending on the impact arrangement tension or shear loading at extremely high rates of the stress intensity factor can be realized. With specimens of a high strength steel increase of the tensile fracture decreasing to about 5us. This has been measured with an improved shadow optical technique in reflection. The assumption of an incubation time is used to explain this behaviour.

Author(s):
Winkler, S.
Author Organization(s):
FRAUNHOFER-INST FUER WERKSTOFFMECHANIK FREIBURG (GERMANY F R)
Descriptive Note:
Final rept. Oct 1985-Oct 1987
Supplementary Note:
DOI: 10.21236/ADA198643
Pagination:
0072

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):
R/D-3012A-AN
Contract/Grant Number(s):
DAJA45-85-C-0047
Task Number(s):
06
Project Number(s):
1L161103BH57
Monitor Series:
3012A-AN, ERO
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.2.5_Lessons Learned; JCA_5.3_Planning
Communities of Interest:
Weapons Technologies
Descriptor(s):
*FRACTURE(MECHANICS), *SHEAR PROPERTIES, HIGH RATE, IMPACT, CRACKS, TENSILE PROPERTIES, HIGH STRENGTH ALLOYS, STEEL, TIME, PULSES, INCUBATION, SHADOWS, OPTICS, STRESS CONCENTRATION, STRESSES
Field(s)/Group(s):
Mechanics
Keyword(s):
ASH57, PE61103A
Report Date:
1987 Oct 01