Numerical modelling of powder compaction — displacement based finite element method

1994 ◽  
Vol 49 (7-8) ◽  
pp. 49-50
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Modelling ◽  
Powder Compaction ◽  
Displacement Based ◽  
Element Method

scholarly journals Stress evaluation in displacement-based 2D nonlocal finite element method

2018 ◽  
Vol 5 (1) ◽  
pp. 136-145 ◽  
Author(s):  
Aurora Angela Pisano ◽  
Paolo Fuschi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Field ◽  
Nonlocal Elasticity ◽  
Integration Technique ◽  
Stress Evaluation ◽  
Numerical Examples ◽  
Spurious Oscillations ◽  
Displacement Based ◽  
Element Method

Abstract The evaluation of the stress field within a nonlocal version of the displacement-based finite element method is addressed. With the aid of two numerical examples it is shown as some spurious oscillations of the computed nonlocal stresses arise at sections (or zones) of macroscopic inhomogeneity of the examined structures. It is also shown how the above drawback, which renders the stress numerical solution unreliable, can be viewed as the so-called locking in FEM, a subject debated in the early seventies. It is proved that a well known remedy for locking, i.e. the reduced integration technique, can be successfully applied also in the nonlocal elasticity context.

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