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Solutions for Realistic Modeling of NonLinear Components

Most everyday applications that involve physical components tend to be non-linear in nature. Whether you are stretching of an elastic band or pulling on a leash, the force required is not uniform at all times. The reasons range from large deformation and strain, material behaviour, the effect of contact to other boundary condition nonlinearities. This needs to be addressed and accounted for at the design stage to rule out concerns around product failures, safety issues, and ad-hoc costs.

MSC Software has a wide range of non-linear simulation solutions that facilitate large displacement and strain analysis, plasticity, viscoelasticity, non-linear elasticity, bolt modeling, etc. These solutions find extensive applications in several industries such as aerospace and defence, automotive, electronics, energy, rail, and ship building.

Key Solutions

Geometry Non-linearity

When rigidity occurs due to the displacement between components, MSC Software solutions can help engineers to accurately predict the real-structural behaviour. Examples include the stiffening of a loaded clamped plate or buckling in components.

Material Non-linearity

In the case of elasto-plastic, hyperelastic, crushing, and temperature and time related phenomenon such as visco-elasticity or visco-plasticity (creep), non-linear stress and train occurs in the material of a structure. This results in slow weakening of structural interaction due to internal decomposition especially when force is exerted.

Boundary Condition Non-linearity

In the case of extremely flexible components or structural assemblies that consists of numerous components, we see the occurrence of progressive displacement due to self or component-to-component contact. This type of non-linearity is also known as boundary condition or ‘contact’ nonlinearity. Bolted connections, toothed gears, and various forms of sealing or closing mechanisms are examples of Boundary Condition Non-linearity.

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