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Benchmarks for element performance and shape sensitivity.

Basic element tests:

• single element completeness tests for membranes
  
  
• patch test for an assemblage of membrane elements
  
  
• false zero energy mode tests for membrane elements
  
  
• invariance tests for membrane elements
  
  
• shape sensitivity tests for membrane elements
  
  
• single element completeness tests for plate elements
  
  
• patch test for an assemblage of plate bending elements
  
  
• false zero energy mode tests for plate elements
  
  
• invariance tests for plate elements
  
  
• shape sensitivity tests for plate elements