Our team has delivered more than 115 assignments that involved FEA analysis. With multiple ANSYS licenses, we ensure a quick turnaround time. Our experience includes all varieties of structural simulations possible like inertial, modal, random vibration, thermal stresses, drop, transient shock and fatigue. We regularly handle all kinds of non-linearities, be it material, geometrical or contact based. We use all our experience for the appropriate idealization of structures for optimal finite element models.

Thermal Stresses

Weight Optimisation

Failure Analysis

Stress Reduction

Shock and Vibrations

Material Characterization

Structural Analysis is the most common FE analysis carried out. Characteristics such as mode shape, stress, deformation, fatigue life are the most common results processed. Shock loading analysis is another common analysis done to verify structural integrity. For composite material structures, FEM consists of microscale and macroscale analysis. In microscale FEM, analysis is done for individual materials. In macroscale FEM, the entire assemblage is analyzed for structural properties. Using FEM analysis, failure modes can be estimated. For composite material, the failure mode is different. Here, inter-laminar shear strength is a key material property.

In finite element analysis, the structure is discretized into smaller elements. The elements could be a 1D beam, 2D shell or plate and 3D brick or tetrahedral. Constitutive relation for material stress-strain is then formulated on the elements. This results in a large matrix, whose size depends on the degree of freedom for the selected element. A numerical sparse matrix solver is then employed for the solution. For some structures, meshes are created separately on each sub-component. The connections are then formed either using rigid links or by defining surface contacts. The common types are frictional and frictionless contacts. Non-linearity in FEM can arise from material or geometry. Both require solutions to be executed in sub-steps.