Strength of Materials: http://en.wikipedia.org/wiki/Strength_of_materials 

Testing Solutions at Instron: http://www.instron.in/wa/solutions/default.aspx 

Fundamentals of Materials Science and Engineering, W.D. Callister, 3rd Ed., 2008, John Wiley & Sons. (ISBN 978-0-470-12537-3)

Mechanics of Materials, F.P. Beer, E.R. Johnston, J.T. Dewolf, and D.F. Mazurek, 6th Ed., 2012, McGraw Hill. (ISBN: 978-0-07-338028-5)

Mechanical Testing Center at Southeast University: http://sbc.seu.edu.cn/lxsyzx/ 

Virtual Labs at Indian Institute of Technology (IIT): http://www.vlab.co.in/index.php 

Mechanical Testing Instructional Laboratory at University of Illinois at Urbana-Champaign (UIUC): http://mtil.illinois.edu/ 

Mechanics of Materials Laboratory by Michael G. Jenkins at University of Washington: http://swhite.me.washington.edu/~jenkinsm/me354/