Spider Web Strength Measure
Name: Joel Alan S.
Date: June 2002
How is tensile strength measured, especially when
measuring the strength of a spider web?
There are various devices for doing this type of measurement. These
measurements are common in a wide range of research, engineering, and
commercial applications. There are many configurations and variations that
can be set, but they all involve clamping the test sample at the ends in
some type of jaws -- the exact configuration of course depends upon whether
you are measuring a fiber or pipe. Then the jaws, which are pulled (or
pushed). The force (i.e. the stress) is measured as a function of the
stretching or compression (i.e. the strain). The rate of movement of the
jaws, the profile of the application of the stress as a function of time,
temperature and all that can be programmed, depending upon the instrument
and the measurement(s) that are desired. A common commercial machine is
called an "Instron tester". You may find a web site for that "brand name"
that will give you details.
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Update: June 2012