General Introduction. The two functional groups I deal with here are the C,C double bond and the C,C triple bond. In each case the group is named by changing the letter a in the suffix ane to e for the double bond and to y for the triple bond.otes: 1  Examples 1 and 2 show the use of E/Z for routine alkene structures for which cis/trans could have been used. 2  Examples 5 and 6 show how the rules require you to move down the chain away from the stereocentre (the double bond) until a difference is found. 3  Example 6 illustrates that the functional group named as a prefix takes precedence in ...
compressive strength Definition. The resistance capacity of any material, but especially structural members, to crushing force. Compressive strength is usuallyexpressed as the maximum number of pounds per square inch that can be resisted without failure.
The compressive strength of the material would correspond to the stress at the red point shown on the curve. In a compression test, there is a linear region where the material follows Hooke's Law.Hence for this region where this time E refers to the Young's Modulus for compression.ome materials fracture at their compressive strength limit; others deform irreversibly, so a given amount of deformation may be considered as the limit for compressive load. Compressive strength is a key value for design of structures.