Static loads and vibrations
Soda can crash
Rendering of Buckling simulation of a prosthetic hand, crashing soda can
Main aim of this simulation was to demonstrate rendering and texturing of a simulation results.
Soda can was modeled based on standard 0.2 mm thickness made of aluminium.
One of the challenges is to demonstrate and achieve a proper buckling of the aluminum foil, for achieving this goal a non linear material model. with damage accumulation was used - with Wierzbicki [1] failure model.
The prosthetic hand is a rigid material.
To simulate the contact between the hand and the can, a non linear stiffness interface was used,
The non linearity is essential due to the material plasticity of the soda can after buckling occurs.
Final render was applied on the results using Altair - Evolve. https://solidthinking.com/product/evolve/
[1] Bao, Y. and Wierzbicki, T. 2004. On Fracture Locus in the Equivalent Strain and Stress Triaxiality Space, International Journal of Mechanical Sciences, V. 46, pp. 81-98.
Electric cabinet vibration
Fron view PSD RMS stress
Side view PSD RMS stress
Transportation vibration profile
Fron view PSD RMS stress
Power spectral density (PSD) and free vibration simulation of electric cabinet
Main aim of this simulation was to determine electric cabinet resistance to variable vibration profiles in all directions, according to the standards MIL-STD-167 for sinus vibration and MIL-STD-810F for random shipping vibration.
The FE model solved using implicit dynamic method with frequency response over desired frequency spectrum.
Similar analyses are used in earthquake simulations and fatigue due to constant vibration. These analyses are important to find structural response to a specific frequency and acceleration, while showing the behavior of the structure under fatigue loading in such a loadcase.
Mechanical loads - industrial lifting device
Industrial lifter - weight loading analysis
Main aim of this simulation was to determine lifting device mechanical resistance to maximum possible applied weight,
All material used in this simulation were Elasto-plastic to determine, both the safety factor until yielding point, and further to find maximum residual deformation after the load has been released.
The FE model solved using non linear implicit static method while the applied weight is loaded from 0 to 100% and stresses are calculated at increments of 10%.