Thermal Expansion of a Steel Rail

Rail compressive stress as ambient temperature rises

Category: Thermal-StructuralComplexity: Simple

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A simulation of steel rail expansion from a temperature rise, with the ends either free or restrained by joints and sleepers. The results help set safe joint gaps and fastener spacing.

Thermal Expansion of a Steel Rail: report page 1 (Stress contours)

Project info

CategoryThermal-Structural
ComplexitySimple
Image sets2 pages
Estimated build time± 6 working days
SoftwareANSYS Fluent / CFX
PriceUS$203 - US$813

Deliverables

ANSYS Mechanical project files along with the mesh
Stress and displacement contour images
A concise report on assumptions and results

Image sets

Click an image to enlarge it. 1. Stress contours · 2. Convergence and results

Software and models

ANSYS Mechanical
Static Structural
Thermal-Structural

Analysis scope

Modelling a rail segment and sleepers
Uniform temperature rise as the thermal load
Comparison of free and restrained ends
Calculation of compressive force and the joint gap required

Packages and prices

Choose how far the study should go. Each higher scope includes everything in the lower ones. Prices exclude 11% VAT.

Scope 1

Initial Calculations and Technical Analysis

US$203

excl. 11% VAT

Duration: 5 working days

Output: Calculation report (PDF)

Deliverables

Collection and review of load, material and component geometry data
Analytical nominal stress, moment and force for the main load cases
Analytical estimate of critical points, safety factor and deflection
Strength adequacy against design criteria and reference standards
Engineering calculation report (PDF)

Choose Scope 1

Scope 2 · most chosen

Calculations + FEA Simulation

US$484

excl. 11% VAT

Duration: 10 working days

Output: Report + FEA simulation files

Includes all of Scope 1, plus

3D geometry modelling and meshing
Material, support, contact and load setup, then analysis runs in ANSYS Mechanical
Modelling a rail segment and sleepers
Uniform temperature rise as the thermal load
Comparison of free and restrained ends
Calculation of compressive force and the joint gap required
Stress and displacement distribution analysis (contours and critical points)
Mesh convergence check and safety factor review
Full analysis report with result contours (PDF + simulation files)

Choose Scope 2

Scope 3

Full Engineering Report + Design Recommendations

US$813

excl. 11% VAT

Duration: 15-20 working days

Output: Full engineering report + design recommendations

Includes all of Scope 1 & 2, plus

Design variant comparison and recommended optimal configuration
ANSYS Mechanical project files along with the mesh
Stress and displacement contour images
A concise report on assumptions and results
Recommended changes to geometry, material or thickness
Weight and strength comparison across design variants
Safety margin and failure risk analysis
Complete technical document ready for design and procurement (PDF)

Choose Scope 3

Payment: 50% down payment before work starts, balance after the report is delivered
Tax: Prices exclude 11% VAT
Data assumptions: Work is based on the data you provide; if the data changes, the scope may be reviewed
Revisions: Up to 2 revisions are included in the price

Frequently asked questions about Thermal Expansion of a Steel Rail

What is included in the "Thermal Expansion of a Steel Rail" package?

Geometry and mesh prepared from your drawings; Simulation case and data files (Fluent/CFX) with boundary settings; Technical report: assumptions, results and design recommendations; Contour, vector and animation outputs ready for presentation; A 60-minute results walkthrough and two rounds of revisions.

Can you simulate my own geometry?

Yes. Send CAD files or drawings and the operating conditions (flow rates, temperatures, materials). We prepare the geometry, mesh and boundary conditions for your case.

How long does it take?

Roughly 6 working days after we receive the geometry and conditions, depending on mesh size and how many design variants you want compared.

How is the price decided?

Each project has three packages: Scope 1 (calculations) US$203, Scope 2 (calculations + FEA simulation) US$484 and Scope 3 (full engineering report + design recommendations) US$813, excluding 11% VAT. Pick the one that fits; more design variants, transient runs, moving parts or validation against experiments adjust the quote after a short consultation.

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Packages and prices

Choose how far the study should go. Each higher scope includes everything in the lower ones. Prices exclude 11% VAT.

Scope 1

Initial Calculations and Technical Analysis

US$203

excl. 11% VAT

Duration: 5 working days

Output: Calculation report (PDF)

Deliverables

Collection and review of load, material and component geometry data
Analytical nominal stress, moment and force for the main load cases
Analytical estimate of critical points, safety factor and deflection
Strength adequacy against design criteria and reference standards
Engineering calculation report (PDF)

Choose Scope 1

Scope 2 · most chosen

Calculations + FEA Simulation

US$484

excl. 11% VAT

Duration: 10 working days

Output: Report + FEA simulation files

Includes all of Scope 1, plus

3D geometry modelling and meshing
Material, support, contact and load setup, then analysis runs in ANSYS Mechanical
Modelling a rail segment and sleepers
Uniform temperature rise as the thermal load
Comparison of free and restrained ends
Calculation of compressive force and the joint gap required
Stress and displacement distribution analysis (contours and critical points)
Mesh convergence check and safety factor review
Full analysis report with result contours (PDF + simulation files)

Choose Scope 2

Scope 3

Full Engineering Report + Design Recommendations

US$813

excl. 11% VAT

Duration: 15-20 working days

Output: Full engineering report + design recommendations

Includes all of Scope 1 & 2, plus

Design variant comparison and recommended optimal configuration
ANSYS Mechanical project files along with the mesh
Stress and displacement contour images
A concise report on assumptions and results
Recommended changes to geometry, material or thickness
Weight and strength comparison across design variants
Safety margin and failure risk analysis
Complete technical document ready for design and procurement (PDF)

Choose Scope 3

Payment: 50% down payment before work starts, balance after the report is delivered

Tax: Prices exclude 11% VAT

Data assumptions: Work is based on the data you provide; if the data changes, the scope may be reviewed

Revisions: Up to 2 revisions are included in the price

Frequently asked questions about Thermal Expansion of a Steel Rail

What is included in the "Thermal Expansion of a Steel Rail" package?

Can you simulate my own geometry?

Yes. Send CAD files or drawings and the operating conditions (flow rates, temperatures, materials). We prepare the geometry, mesh and boundary conditions for your case.

How long does it take?

Roughly 6 working days after we receive the geometry and conditions, depending on mesh size and how many design variants you want compared.

How is the price decided?

Thermal Expansion of a Steel Rail

Project info

Deliverables

Image sets

Software and models

Analysis scope

Packages and prices

Initial Calculations and Technical Analysis

Calculations + FEA Simulation

Full Engineering Report + Design Recommendations

Frequently asked questions about Thermal Expansion of a Steel Rail

Similar projects

Thermal Stress in a Heat Exchanger

Thermal Stress in a Heating Plate

Topology-Optimised Motor Mount

Thermal Expansion of a Steel Rail

Project info

Deliverables

Image sets

Software and models

Analysis scope

Packages and prices

Initial Calculations and Technical Analysis

Calculations + FEA Simulation

Full Engineering Report + Design Recommendations

Frequently asked questions about Thermal Expansion of a Steel Rail

Similar projects

Thermal Stress in a Heat Exchanger

Thermal Stress in a Heating Plate

Topology-Optimised Motor Mount