What is structural analysis?

Structural analysis evaluates how a component, assembly or structure responds to applied loads. It can be used to assess stress, deformation, stiffness, load paths and structural integrity.

What is stress analysis?

Stress analysis determines how internal stresses develop within a component under specific loading conditions. The results can then be assessed against relevant material properties and engineering requirements.

When should FEA be used for structural analysis?

FEA is particularly useful where geometry, loading or structural behaviour is too complex to assess confidently using simple calculations. It can also be used to compare design alternatives and support design verification.

How accurate is structural FEA?

The accuracy of an FEA assessment depends on factors including geometry, material properties, loading, constraints, modelling assumptions and how the results are interpreted. A technically sophisticated model cannot compensate for unrealistic engineering assumptions.

Does a high stress result mean a component will fail?

Not necessarily. A high local stress may represent a genuine structural concern, but it can also result from a stress concentration, load introduction, constraint or modelling idealisation. Engineering judgement is required to determine its significance.

Can structural analysis reduce component weight?

Yes. Understanding load paths and structural demand can help identify areas where material may be reduced while maintaining the required strength and stiffness.

Can FEA replace physical testing?

FEA and physical testing serve different purposes and are often most effective when used together. FEA can help identify weaknesses and optimise a design before physical testing, while testing provides evidence of actual product behaviour.

What information is required for a structural analysis?

Typical requirements include component or assembly geometry, material information, applied loads, mounting or constraint conditions and relevant performance requirements. Where information is uncertain, appropriate assumptions can be discussed as part of the assessment.

Composite Structure Assessment

What We Do

Composite Structure Assessment

Composite structure assessment is used to understand how fibre-reinforced composite components and structuresrespond to mechanical and environmental loading.

Unlike conventional isotropic materials, composites can have significantly different properties depending on fibre direction, laminate configuration and material construction. Structural performance therefore depends not only on the overall geometry, but also on how the material is designed and loaded.

QANTIS Engineering Group provides consultancy-grade FEA and composite structure assessment to evaluate structural behaviour, strength and potential failure mechanisms in composite components and assemblies.

Typical engineering questions include:

Is the composite structure sufficiently strong for its intended loading?
How should loads be distributed through the laminate?
Are fibre orientations appropriate for the applied loads?
Where are the critical regions or failure mechanisms?
Could the laminate configuration be improved?
How does the composite structure respond to combined loading?
Is the design suitable for its intended operating conditions?

The objective is to understand how the composite material and structure work together to carry load and where potential weaknesses may exist.

Why This Analysis Matters

Composite structures can achieve excellent strength and stiffness at relatively low weight, but their performance is highly dependent on material direction, laminate construction and load transfer.

A composite assessment can help engineering teams:

Assess structural performance under defined loading conditions
Evaluate fibre and laminate behaviour in relation to applied loads
Identify critical failure mechanisms within the composite structure
Improve strength-to-weight efficiency through informed laminate design
Support design validation against defined structural requirements
Reduce development risk before manufacture and physical testing

Composite failure can involve different mechanisms, including fibre failure, matrix failure, interlaminar effects, delamination and localised damage. Understanding which mechanisms are relevant is essential when interpreting analysis results.

The value lies in understanding how the laminate carries load, where failure may initiate, and what that means for the overall structural design.

Our Engineering Approach

Our composite assessments begin with understanding the material system, laminate construction, loading conditions and structural requirements.

We establish the relevant composite properties, fibre orientations, laminate configuration, interfaces and operating loads before developing an appropriate analysis approach.

The structural response is then assessed with consideration of the behaviour relevant to composite materials. This may include fibre and matrix stresses, laminate-level behaviour and potential failure mechanisms where appropriate.

Results are interpreted in the context of the actual composite design and its intended application. Where concerns or opportunities are identified, we provide practical recommendations to improve structural performance, laminate efficiency or overall design robustness.

Our focus is on understanding how the composite structure carries load, how it may fail, and how the design can be improved with confidence.

When Is This Service Needed

New Composite Component Development

Assess early composite designs and develop an understanding of how the proposed structure will carry its intended loads.

Lightweight Structural Design

Evaluate opportunities to achieve the required strength and stiffness while minimising composite material and structural mass.

Laminate & Layup Development

Assess how fibre orientation, ply arrangement and laminate configuration influence structural performance.

Aerospace & UAV Structures

Support structural assessment of lightweight composite components where strength-to-weight performance is critical.

Motorsport & Automotive

Assess composite body structures, aerodynamic components, chassis-related structures and other weight-sensitive applications.

Existing Composite Design Assessment

Investigate structural concerns, unexpected deformation, damage or changes to an existing composite design.

Design Validation

Provide engineering analysis to support composite design verification and broader validation activities.

Industries We Support

QANTIS Engineering Group supports engineering teams across a range of industries, including:

Aerospace & Defence
Automotive
Motorsport
Rail & Transportation
Marine & Offshore
Oil & Gas
Nuclear
Renewable Energy
Consumer Products
Medical Devices

Robotics & Automation
Electronics & Semiconductors
Mining & Heavy Equipment
Materials & Advanced Manufacturing
Architecture & Building Products
Sports & Leisure
Packaging & Logistics
Product Development

Our work covers components, assemblies, brackets, frames, mounts, fabricated structures and other mechanical systems where structural performance needs to be understood and validated.

Frequently asked questions

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Whether you're developing a new product, investigating a design issue, or validating a component before manufacture, we're here to provide independent engineering insight that supports confident decision-making.

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