sheet metal assembly verification by fea methods

1. Introduction2. Objective3. Material property of components4. CAD model5. Unfold CAD model for sheet metal operation6. Base FEA assembly model7. Load and boundary condition8. Displacement results for deferent types of

element selection9. Stress results for deferent types of element

selection10. Documents of max value of displacement &

stress for deferent types of element selection11. Conclusion of the presentation

Verification of FEA results by use of deferent FEA modeling methods with same element pattern and assembly method with same load and boundary condition(inertia relief) .

It is a exercise of use of deferent testing methods and what type of assembly will satisfy it in all respect.

Material name

Young’s modulus

Shear modulus

Poison's ratio

density

Aluminum alloy

7.00e4 2.632e4 0.33 2.8e-9

steel 2.10e5 8.203e4 0.28 7.83e-9

Hex model of individual component is the base model

Mid face of Hex model of individual component

outer face of Hex model of individual component

Tet model extracted by splitting of Hex model of individual component

IMAGES OF AREA HAVING HIGHER DISPLACEMENT VALUE ON LOADING CONDITION

HEX ELEMENT TET ELEMENT

SHELL ELEMENT IN OUTER FACE SHELL ELEMENT IN MID PLAN

ASSEMBLY ELEMENT TYPE

NODE SHOWING MAX VALUE

VALUE AND RESULT TO BE TAKEN FOR

REVIEW

HEX MODEL 1.73E+00

TET MODEL 7.27E-01  

MID PLANE MODEL 1.81E+00  

OUTER SURFACE MODEL 1.82E+00HIGHER DISPLACEMENT

VALUE

ASSEMBLY ELEMENT TYPE

element showing max value

VALUE AND RESULT TO BE TAKEN FOR

REVIEW

HEX MODEL 1.66E+02

TET MODEL 1.14E+02  

MID PLANE MODEL 1.89E+02  

OUTER SURFACE MODEL 1.91E+02HIGHER DISPLACEMENT

VALUE

The objective is achieved by getting different results from assembly by use of deferent modeling methods without change of base pattern of FEA model.

Same assembly has to go for dynamic inertia relief test to gather output results variation.