Solve Complex Engineering Challenges with Precision FEA
At Mechanika Ltd, we provide expert Finite Element Analysis (FEA) services that enable engineers, designers, and manufacturers to understand how their products will perform under real-world conditions, before a single prototype is built.
From stress distribution to fatigue and failure prediction, our simulations bring clarity, speed, and confidence to your product development cycle.
Need precise simulation insights?
What is Finite Element Analysis (FEA)?
Finite Element Analysis (FEA) is a computer-based simulation technique used to predict how objects will react to external forces such as pressure, heat, vibration, and impact. It breaks down complex structures into smaller elements, allowing engineers to visualise internal stresses and weak points before manufacturing begins.
Finite Element Analysis (FEA) enables an entire structure to be modelled, restrained, and loaded as close as possible to how it would be in the real world. FEA is capable of simulating the distribution of load, deflection, and stress throughout a structure and can consider the complex effects of all influencing variables, such as material, geometry, restraints, and contacts (linear and nonlinear). FEA gives a high-resolution capture of the stress, deflection, and force/moment reactions within a system, which, if done via hand calculation, would be labour-intensive, long, over-simplified, and in some instances impossible to do.
Why Use FEA?
Whether you’re validating a new product design or troubleshooting an existing failure, FEA is a reliable way to save time, reduce costs, and improve performance. FEA enables complex structural behaviour to be quantified with high geometric resolution and accuracy, so that fatigue and creep can be fully reported and, where necessary, optimised accordingly.
Furthermore, it is possible to model dynamic loading conditions such as mating gear trains, screw threads and wheel-interface modelling and various other complex contact situations.
Our FEA Capabilities
We offer a full spectrum of Finite Element Analysis services tailored to complex engineering needs. Our expertise spans across the following key areas:
Stress Analysis Specialists
We specialise in advanced stress analysis using FEA to model scenarios that go beyond the assumptions of linear elasticity. This includes simulations with non-linear materials and contact behaviours, ensuring more accurate insights into real-world structural performance.
Thermal Analysis Services UK
With deep expertise in thermal simulations, we understand the critical role of boundary conditions and constraints in heat transfer analysis. Our models account for thermal expansion and stress under varying temperature gradients, enabling you to design for durability and optimal performance.
Vibration Analysis
Our vibration analysis services accurately compute natural frequencies and mode shapes for assemblies of any size or complexity. We also conduct forced vibration simulations to evaluate structural responses to external excitations such as machinery or environmental vibrations.
Optimisation Analysis
Optimisation is essential for balancing weight, size, cost, and performance in any design. At Mechanika, we advise on optimal material selection and geometry, and use advanced solvers to automate structural improvements, delivering high-performance designs with minimal resource waste.
Non-Linear Analysis
When components exceed their elastic limits, linear models are no longer sufficient. We use non-linear analysis to capture the behaviour of structures under plastic deformation, large deflections, or complex contact interactions — helping you understand true operational performance.
Impact & Crash Analysis
Traditional static analysis often falls short in high-speed or high-energy scenarios. Our impact simulations account for transient, time-dependent loads to assess equipment performance during crashes, drops, or other short-duration force events.
Structural & Mechanical Dynamics
We offer comprehensive dynamic analysis for buildings, cranes, bridges, and mobile systems. From modal analysis to forced response evaluations, we simulate how structures behave under moving loads, human interaction, and mechanical vibrations.
Seismic Assessment
As one of the few UK firms with seismic qualification capabilities, Mechanika provides seismic analysis and design services for critical equipment and structures. We’ve supported assessments for cranes, bogies, walkways, and more in high-integrity environments.
Beam/Frame Modelling
For large or slender structures, solid elements can be inefficient. We use beam elements to model trusses, frames, and other long, narrow sections with high fidelity. This method ensures accurate results while reducing computation time and resource use.
Fatigue Analysis
Our fatigue analysis services help predict failure due to repeated loading. We evaluate stress levels, identify high-risk regions, and refine designs to prevent crack initiation and growth. This improves product lifespan and informs inspection and warranty schedules.
Buckling Analysis
Buckling can lead to sudden and catastrophic failure under compressive stress. We assess critical load points, simulate instability, and recommend structural improvements to maintain strength, safety, and reliability throughout your product’s life cycle.
Design Code Compliance
How We Report and Validate
We do not just create a model and tell our customers the results; we fully document and report the FEA using structural calculation report formatting to design codes. Using FEA to carry out code compliance checks to a national standard is a tricky affair that requires highly skilled and experienced engineers who understand the behaviour of the solver and reported results, to enable appropriate stresses to be selected, reported, and compared against the permissible stress from the design code. Without this expertise, the unknowing user would report singular stresses (singularities) and very localised hotspots above the stated maximum permissible stresses. These stresses require very careful consideration and awareness of how the solver works, to determine what is a real stress or a singularity stress.
Our FEA Project Experience
FEA is the core of our annual work throughput, and we have worked on a vast number of projects, ranging from small products and individual components, right the way up to complex heavy load bearing structures in excess of 400 tonnes and aircraft structures, using both linear and non-linear modelling techniques.