####################################################
# Judy Pang <pangj@ornl.gov>
# requesting 6 days, at minimum=3 days
# beamline 34ID-E, Investigation of crack tip properties in Al
# instrument 34ID-E bruker
####################################################
# top:/home/www/beamtime-requests/req00801.txt
# UNICAT Member Beam Time Request  #801
# created Fri Apr 22 09:51:15 CDT 2005
####################################################

apsrun:
	2005-02

beamline:
	34ID-E

collaboration:
	Yes

collaborator_Wenjun:
	ON

contact:
	pangj@ornl.gov

days:
	6

description:
	We propose to measure the plastic zone and strain distribution around crack tip of an Al specimen in 3D. Previous experiments on the plastic zone size in Al alloys in 3D suggest the microbeam technique is a good tool for fracture mechanics study. However the search for the crack positions beneath surface by the aperture method was very time-consuming. For the proposed experiments, the samples will be pre-cracked and the morphology of the crack will be mapped out by high energy X-ray tomography in ORNL.  This will allow us to confine the microbeam measurements to only the area of interests.

equipment_required:
	

experiment:
	Investigation of crack tip properties in Al

foreign_nationals:
	

hazards:
	None

instrument:
	34ID-E bruker

instrument_other:
	

minimumdays:
	3

name:
	Judy Pang

nonmembers:
	

unacceptable_dates:
	

z34ID_change_undulator:
	yes

z34ID_details:
	

z34ID_parasitic:
	no

z34ID_taper:
	yes


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