Bolted Flange Joint

Bolt preload and flange stress under service load

Category: Static Structural & Stress ConcentrationComplexity: Complex

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An analysis of a two-flange bolted joint with surface contact and staged bolt pretension. The results show the most loaded bolt and whether the joint stays closed under service load.

Bolted Flange Joint: report page 1 (Stress contours)

Project info

CategoryStatic Structural & Stress Concentration
ComplexityComplex
Image sets2 pages
Estimated build time± 21 working days
SoftwareANSYS Fluent / CFX
PriceUS$391 - US$1,578

Deliverables

ANSYS Mechanical project files along with the mesh
Bolt and flange stress contour images
A concise report on assumptions, results, and recommendations

Image sets

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

Software and models

ANSYS Mechanical
ANSYS SpaceClaim
Static Structural
Contact Nonlinear

Analysis scope

Flange, bolt, nut, and washer geometry
Nonlinear contact with friction between surfaces
Bolt pretension step followed by service load
Bolt force, flange gap, and flange stress checks

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$391

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$953

excl. 11% VAT

Duration: 14 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
Flange, bolt, nut, and washer geometry
Nonlinear contact with friction between surfaces
Bolt pretension step followed by service load
Bolt force, flange gap, and flange stress checks
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$1,578

excl. 11% VAT

Duration: 20-26 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
Bolt and flange stress contour images
A concise report on assumptions, results, and recommendations
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 Bolted Flange Joint

What is included in the "Bolted Flange Joint" 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 21 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$391, Scope 2 (calculations + FEA simulation) US$953 and Scope 3 (full engineering report + design recommendations) US$1,578, 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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Project info

CategoryStatic Structural & Stress Concentration

ComplexityComplex

Image sets2 pages

Estimated build time± 21 working days

SoftwareANSYS Fluent / CFX

PriceUS$391 - US$1,578

Deliverables

ANSYS Mechanical project files along with the mesh

Bolt and flange stress contour images

A concise report on assumptions, results, and recommendations

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$391

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$953

excl. 11% VAT

Duration: 14 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
Flange, bolt, nut, and washer geometry
Nonlinear contact with friction between surfaces
Bolt pretension step followed by service load
Bolt force, flange gap, and flange stress checks
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$1,578

excl. 11% VAT

Duration: 20-26 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
Bolt and flange stress contour images
A concise report on assumptions, results, and recommendations
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 Bolted Flange Joint

What is included in the "Bolted Flange Joint" 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 21 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?

Bolted Flange Joint

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 Bolted Flange Joint

Similar projects

Notched Plate in a Lifting Device

Gravity Dam Cross-Section

Pedestrian Bridge Truss

Bolted Flange Joint

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 Bolted Flange Joint

Similar projects

Notched Plate in a Lifting Device

Gravity Dam Cross-Section

Pedestrian Bridge Truss