Home » Services » CAE Consulting » FEA Consulting services

Our services at glance

Why Choose DESIGNTEC as Your FEA Consulting Partner

successfully finished FEA consulting projects

customers from Germany and Austria

Have you considered using simulations to help you with the project progresses?

We are able to offer you way towards the solution in wide range of physics and industries.

Finite Element Analysis (FEA) – an Approach for Optimal and Safe Design

Finite Element Analysis (FEA) and numerical simulations form an integral part of the product and structure development process in various industries. Benefits of FEA:

  • prove and assess structural integrity, fatigue live and durability prior to manufacturing,
  • extend the knowledge of structure response in real conditions,
  • minimize cost of materials and maximize product performance (virtual product development),
  • reduce product design time and time-to-market,
  • reduce expensive physical prototype manufacturing and testing.

FEA as applied in engineering on a wide spectrum of complex engineering problems is a tool used for the evaluation of structures and systems, providing an accurate prediction of a component’s response subjected to a load condition and proof of reliability as well as durability of the product or structure.

The application of modern numerical simulations tremendously helps in minimizing your costs, improving the product or structure and hence in maintaining and improving your competitiveness.

  • Virtual Product Development & Optimization

    Virtual Product Development & Optimization

    Combination of finite element method applications and optimization techniques for your costs savings and product performance improvement.

  • Fatigue Assessment

    Fatigue Assessment

    DESIGNTEC helps you to predict and asses fatigue damage of your structures or products in accordance with applicable norms and industrial standards

Our FEA Services in Detail

Structural Statics and Stress Analysis

DESIGNTEC provides structural FEA consulting services to customers that need static design of complex structures where standard technologies may be insufficient for analysis and explanation of the conditions and behavior of a civil structure or mechanical device.

FE-Analysis can be effectively applied to investigate structural integrity of individual component as well as performance of whole structure under service and extreme conditions. Static structural analysis can be used for limit state design or for advanced modeling of real structure behavior under extreme loading conditions where the nonlinear behavior of structure components plays crucial role. In such cases nonlinear FE-Analysis provides insight into possible mechanisms of failure and helps to improve the structural performance.

There are many physical aspects that can be considered during simulation process:

  • Geometrical nonlinearities (stress stiffening large displacements, large strains).
  • Material nonlinearities (Metals, plastics, rubbers, foams, composites, fluid, reinforced concrete, fiber reinforced concrete, timber, soil and rock). Composite laminates with per ply definition.
  • Extensive failure and yield models. Time, rate and temperature dependent material properties.
  • Nonlinear contact behavior.
  • De-lamination, crack propagation.
  • Linear and Non-linear stability analysis considering structural imperfections.
  • Material creep and shrinkage.

There is variety of applications:

  • Linear and Nonlinear analysis of civil engineering structures and mechanical constructions.
  • Structural analysis of welded (EC3, FKM standard) and bolted (FKM standard, SpaceBolt / A-Bolt) structures.
  • Soil-Structure Interaction analysis.
  • Simulation of nonlinear response of materials and structures and machines.
  • Ultimate and serviceability state design for steel and reinforced concrete structures based on FE-Analysis, simulation of experimental tests.
  • Geo-mechanical and Geo-technical simulations.
  • Nonlinear behavior of reinforced and fiber-reinforced concrete.
  • Stability of rock/soil slopes (limit equilibrium methods, continuum and discontinuum numerical methods).
  • Analysis of the sequential construction (civil engineering, geo-technics etc.).
  • Above and underground storage tanks.
  • Assessing the structural safety of building structures subjected to fire loading.

Structural Dynamics and Vibrations

Through a deep understanding of structural behavior subjected to dynamic loading, it is possible to obtain improvements into the operating efficiency of a product, and to reduce probability of failures, shutdowns and minimize maintenance costs. Vibration analysis and FEA technique can be effectively used to evaluate the dynamic characteristics of machines and structures prior to fabrication or for troubleshooting of installed systems.

Dynamic structural analysis helps to avoid resonance effects and excessive vibration of the structure at design stage. To ensure structural integrity and serviceability of all structural components we design tuned vibration absorbers, passive vibration isolators and active vibration control systems. Furthermore, simulation of accidental dynamic conditions such as heavy wind, earthquake, vehicle/aircraft impact or explosion
can be used to investigate structural integrity during such disasters.

We provide structural analysis services ranging from simple modal analysis to complex nonlinear transient analysis.

There are more analysis options depending on the problem physics:

  • Modal analysis.
  • Harmonic analysis (resonance problems).
  • Transient dynamic analysis of linear and nonlinear systems (random excitation, impulse, moving loads, etc.).
  • Response spectrum analysis (single point and multi-point spectra).
  • Nonlinear explicit dynamics (short duration events as impact, crash and explosion).
  • Random vibrations and PSD.
  • Signal processing (DFT, FFT, filtering)

There is variety of applications:

  • Analysis of vibrations caused by rotating equipment under operation conditions as well as during startup and shutdown conditions.
  • Structures subjected to wind load (cable-supported structures, membrane roofs, towers and masts, multi-storey buildings).
  • Fluid-structure interaction and flow induced vibrations (pumps, pipe systems, storage facilities).
  • Earthquake engineering.
  • Failure, Fatigue and Fitness for Service analysis of machine components, bearings, platforms, floors, connected piping systems, electronic devices and other auxiliary equipment.
  • Structural vibration troubleshooting (modification of the vibration source and transfer or the structure mass/stiffness, design of passive and active vibration control systems, vibration insulation).
  • Foundation design and soil structure analysis for rotary, reciprocating and impact machines.
  • Vibration control systems for human comfort, sensitive devices and accurate production processes.
  • Seismic design of equipment and machinery systems.
  • Rotordynamic Analysis.
  • Flexible and rigid Multi-body Dynamics.

Thermal and Hydraulic analysis

Temperature changes can have a significant impact on the behavior of machines and structures and often represent crucial design aspect that is necessary to be considered within the design process and structural analysis. Thermal analysis represents the simulation heat transfer by thermal conduction, convection and radiation leading to temperature distribution over a structure or system. Such analysis enables studying how heat is being transferred through a material, how temperature field changes over time period, and how temperature changes affect the behavior of a structure.

DESIGNTEC provides customers superior groundwater modeling services, including groundwater flow through porous/fractured media, unsaturated flow and contaminant transport. We have experience and expertise in the development of advanced numerical groundwater flow models in a wide range of applications related to engineering hydrogelogy, geotechnics, mining and environmental engineering.

We provide our customers with performing and evaluating of thermal and hydraulic analysis from simple steady state problems to complex nonlinear transient thermal and hydraulic analysis.

Following analysis are considered:

  • Steady state thermal analysis
  • Transient thermal analysis
  • Convection modelling
  • Radiation modelling
  • Thermal-Structural analysis
  • Darcy flow in porous media – Steady state and Transient unsaturated groundwater flow
  • Van Genuchten retention model

There is variety of applications:

  • Heat exchanger design and optimization
  • Thermal loads on civil structures (bridges, building structures, etc.)
  • Simulation of heating and cooling processes of valves, pumps, pressure vessels and reactors (incl. stress assessment)
  • Simulation of thermal insulation and thermal shields
  • Ground water flow through porous/fractured media
  • Calculation of pore pressures, effective stresses and seepage forces resulting from groundwater flow through embankments, gravity dams and their subgrade
  • Simulation of contaminant and pollutant transport
  • Design and assessment of groundwater control – cut-off walls and grouting for de-watering of excavations, aimed at preventing pollution migration and flood control

Multi-physics and Coupled field problems

Our consulting services also cover modeling of coupled problems: heat transport and subsurface flow (thermo-hydraulic coupling), mechanical interaction between groundwater and porous/fractured geologic media (hydraulic-mechanical coupling) or the combination – thermo-hydraulic-mechanical coupling. These advanced simulation techniques can be used to study variety of geologic processes.

Following analysis are considered:

  • Direct coupling
  • Sequential coupling
  • Structural-Thermal
  • Fluid-Structure Interaction (FSI)
  • Hydraulic-Mechanical
  • Thermo-Hydraulic-Mechanical
  • Steady state / Transient problems

There is variety of applications:

  • Geothermal energy and geothermal power plants
  • Consolidation modelling
  • Multi-scale models assessing CO2 storage in geological reservoirs
  • Slope stability analysis with seepage forces
  • Modelling of Thermo-hydraulic-mechanical processes near radioactive waste disposals

Assessment and Strength Verification

The load bearing capacity and the proof of strength of newly developed constructions, devices, parts and components has to be calculated, evaluated and verified following standardized procedures and according to criteria and required safety levels defined in standards.

The basis for the assessment and verification are the stresses resulting from various loading situations and their mutual combinations, which are also specified in standards and norms. The calculations of these stresses are predominantly carried out by means of FE-Analyses, as this strategy enables complex geometries and operating conditions to be analyzed.

Assessment and verification refer not only to the structural stresses related to permanent state of deformation and fracture respectively, but also to fatigue life, i.e. the verification of fatigue strength.

Crucial structural components requiring specific assessment and verification are bolted and welded joints and connections (check the A-Bolt).

We have used following standards and norms as the basis for strength and fatigue assessment in many our projects:

  • palette of EuroCodes and DIN Standards
  • FKM-Richtlinie
  • VDI 2230, ECSS-HB-32-23
  • ČSN and others

Reference Projects