To Non-Java ALLSTAR Network Website

                                                                                                                                                                        JAVA-capable browser required for graphic-based menus (Exploer 3.0 or Netscape 2.0 or greater)

Please let me remind all of you--this material is copyrighted.  Though partially funded by NASA, it is still a private site.  Therefore, before using our materials in any form, electronic or otherwise, you need to ask permission.
There are two ways to browse the site: (1) use the search button above to find specific materials using keywords; or,
(2) go to specific headings like history, principles or careers at specific levels above and click on the button.
Teachers may go directly to the Teachers' Guide from the For Teachers button above or site browse as in (1) and (2).

FAQnewred.gif (906 bytes)           

Bending

   This type of stress combines tension and compression. You put a bending stress on a bar when you grasp it with both hands and push the ends together or when you bend a paper clip. The wing spars (interior structural members) are subjected to bending while the aircraft is in flight. The lower side of the spar is subjected to tension, while the upper side is subjected to compression. Obviously, some materials will break before they bend and often are unacceptable for aircraft construction. (see animation or figure 1-2c which shows the upper side of the beam is the tensile side) <p><img src="images/pic1-2c.gif" alt="Type of stress: Bending" align="bottom" width="304" height="130">

 

Back to the lesson


Send all comments to allstar@fiu.edu
1995-2017 ALLSTAR Network. All rights reserved worldwide.

Funded in part by NASA/LTP From
Civil Air Patrol
Educational Materials

Updated: July 30, 2004