To download the 2007 pdf update of MIL-HDBK-1823,
right-click the icon.
Choose "save file as..."
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NOTICE:
By
request from Robert B.
(Scott) Kuhnen,
CIV USAF ASC/ENOI, received 30 March,
2007, the download of the draft document is
temporarily disabled pending clearance from the ASC.
Charles Annis,
P.E.
Charles.Annis@StatisticalEngineering.com
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MIL-HDBK-1823
"Nondestructive Evaluation System
Reliability Assessment"
About the
mh1823 POD software:
The deliverables of my 2006-2007 contract to update MIL-HDBK-1823
included the draft of the updated Handbook and algorithms necessary to
implement the methods described in the Handbook. Software was not a
deliverable item.
However it soon became clear to me that delivering descriptions of
statistical algorithms, with no convenient implementation of them, would be
of limited utility, so I wrote the
mh1823 POD software suite to
help promulgate the
handbook's methods.
Since the software is mine, I am making it available - free - to anyone who
requests it. I have no Government support to maintain
the software or to provide bug fixes, so I am doing this gratis; however requested new capabilities
must await financial support.
mh1823 POD version history:
Current version is
mh1823_v2.5
(Changes to the version's third decimal place
are cosmetic only.)
Changes in version 2.5 from 2.4.4 (25 December, 2007)
- Fixed double bookkeeping of repeated measures in function
compute.a.90.etc. that caused the (2
mil) discrepancy in the
a90/95 values in
figures G-27 and G-28.
Fixed difficulties in reading exogenous â
noise data, which must be in column 1 on "Sheet1" if the input uses
an Excel format.
Allowed for read-in noise to contain NA for left-censored observations.
Restricted use of column 1 in input datasets to row identification only; column 1
cannot be used for either size or response.
Updated splash screen to acknowledge version 2.5
Removed the cause of an annoying but harmless recurring error
message associated with plotting noise data.
Fixed a problem reading CSV input files.
Although these upgrades may seem modest, nevertheless they
necessitated changes to 26 of the package's 154 subroutines.
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Changes in version 2.4.4 from 2.4.3 (26 October, 2007)
- Corrected misspelling of David Forsyth.
- Corrected typo: "plot.noise.analyis" to "plot.noise.analysis"
that had caused "could not find function" error.
- Updated disclaimer.
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Version 2.4.3 was submitted to the U.S. Air
Force on
28 February, 2007 with the DRAFT of MIL-HDBK-1823.
How to download, install, and use the
mh1823 POD Software:(Please read all the instructions before continuing.)
First, get things ready:
-
Create a folder called R-Projects in your My Documents
folder.
-
In that folder create a subfolder named
mh1823 POD
-
Next, download the mh1823
POD package and example datasets:
Since the One-click
download was "temporarily" disabled March 2007 you can get the
software - free - by
request.
Save the
MIL-HDBK-1823 POD files.zip to your
mh1823 POD folder and unzip it.
This will produce the 1823 POD icon, 6 EXCEL files, and another zip
file. Do not unzip that file (currently mh1823_2.5.zip).
The rest is easy:
Since the mh1823 POD
algorithms use R for all data manipulation, statistical analysis, and
graphics ...
-
Download and install R. Click
here.
-
Then install the mh1823
POD software which is an R package and is included in the
MIL-HDBK-1823 POD files.zip file. Click here.
Note on firewalls:
Downloading
software on the company computer may run afoul of enterprise
policy. One remedy is to install R and the
mh1823 POD package on a 1 gig memory stick.
(It takes about 1/4 gig total.) Then you can analyze NDE
data, and produce POD vs size curves, on any computer - plug in
the stick and you're good to go. All the analysis, results
and plots will be on the stick. |
Please send bug reports, comments, and suggestions to me:
Charles.Annis@StatisticalEngineering.com
