Plastic Point In Compression

Test ID  
M-037

    
Description  
Cyclic tests are performed on a material, in which the material is compressed to incrementally increasing extensions and then unloaded in between.  Imposed and residual strains are recorded.  Up to thirty extensions are used.  A strain vs. residual strain curve is generated.  Plastic point is calculated from the intersection of the two asymtotes from the pre-yield and post-yield portions of the plots.    
Data  
An elastic limit defined and a stress v. plastic strain curve is provided. This data appears in Matereality as Compressive Properties.  
Replicates (# of times this test is repeated)  
2  
Samples  
5 - prisms [?]

    

Application 		 
This test defines a compressive non-linear elastic limit of plastics, foams and elastomers and the subsequent plasticity or hardening curve.