Screenshots from the Program
Presented below are screenshots from the program explaining
how easy it is to complete an analysis using BOLTCALC. The program runs under the Windows opersting system.
The program is designed for ease of use
and fully utilizes the Windows graphical interface. At start-up
the program can optionally display a tip of the day feature
that provides information of a general nature related to bolted
Bolt Size Estimate
From the menu on the main form, other
forms such as the bolt size estimate form can be viewed and
edited. The minimum amount of data is required to be entered
on this form for the program to provide an estimate of the bolt
size required for an application.
Data Entry Form
For a more detailed analysis of a joint
a multi-page data entry form is used to allow the various information
to be entered. To assist the engineer, standard data is entered
automatically once the bolt's diameter has been entered. The
user can change any data entered automatically by the program.
By clicking on the appropriate tab at
the top of the form, relevant information can be entered. For
example, the form shown above allows the user to select the
tightening method being used and enter specific details. The
program contains a database of thread and head friction values
to make selection of the appropriate value as easy as possible.
Additional forms can be accessed by clicking
on the appropriate button in order to gain additional information
about the data being requested by the program. Additional assistance
can be requested by clicking on the Help button.
Once all the necessary data has been
entered, the program will compute and display the results. The
results can also be output to a printer to a text file, or as
html and loaded into a web browser.
The program will also display a view
of the joint that can be useful for data checking. Any of the
drawings and graphs produced can be printed out or exported
as graphics files.
A summary of the results is also presented
that gives factors of safety for each of four possible failure
modes: insufficient clamp force being provided, the fastener
being overloaded, fatigue failure and excessive bearing pressure
being present under the nut face. If a problem is found, the
data can be edited by going back into the data entry form.
Presented below are links to further
information related to the BOLTCALC program:
pages giving further details about BOLTCALC
Presentations on the BOLTCALC program
Torque Tightening Analysis using BOLTCALC (pdf)
Thread Stripping Analysis using BOLTCALC (pdf)
Joint Analysis using BOLTCALC (pdf)
Datasheet in Adobe PDF format
Example in Adobe PDF format
- BOLTCALC's optional database editor