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Materials
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Designer
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Tools
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Analysis
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Materials Database

Choose materials from the database or contribute your own

Selected Materials

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Laminate Designer

Design your laminate with symmetry and repetition controls

Operations on Base Laminate

Layer Management

Repetition & Symmetry

Current Laminate

Select a laminate first

Edit Base Layer

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Click "Add Layer" or select a stacking sequence

Saved layups

No custom sequences saved yet

Tools

Select analysis tools and configure geometry and loading conditions

Available Tools

Selected Tools

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Analysis

Configure tool settings and run analysis

Selected Tools Configuration

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Getting started

Design faster with ready-to-follow workflows

Move from material selection to laminate validation with steps aligned to Classical Laminate Theory (CLT), thermal expansion checks, and failure criteria verification.

Need a jump-start? Run your first analysis

1) Build your material stack

Select orthotropic plies or add custom materials with E₁/E₂, G₁₂, ν₁₂, thickness, and density. Capture thermal coefficients (α₁/α₂) to drive expansion analysis.

2) Configure laminate symmetry

Use repetition counts, before/after symmetry controls, and preset sequences (quasi-isotropic, cross-ply) to speed up stacking sequence creation.

3) Apply tools and loads

Attach stiffness, displacement, thermal, and failure tools, then set coupon dimensions and load cases to mirror your test setup.

4) Review outputs

Inspect ABD matrices, mid-plane strains/curvatures, thermal responses, and Tsai-Hill/Tsai-Wu margins to validate the laminate before fabrication.

FAQ

Answers for common laminate design questions

Targeted guidance for engineers, researchers, and students working on composite laminate analysis and validation.

How does the laminate calculator apply Classical Laminate Theory?

The platform assembles ply stiffness contributions into ABD matrices, computes mid-plane strains and curvatures, and surfaces laminate-level responses so you can verify stiffness, coupling, and thermal effects.

Can I account for thermal expansion in my stack?

Yes. Provide α₁ and α₂ for each ply, select the thermal analysis tool, and the solver integrates these coefficients to show laminate thermal expansion and temperature-dependent behavior.

What failure criteria are supported?

The analysis tools include Tsai-Hill and Tsai-Wu options with inputs for Xₜ/Xc, Yₜ/Yc, and S to compute safety margins for each ply.

How do I share or reuse stacking sequences?

Save custom sequences in the designer and reapply them across projects; presets are available for common layups like quasi-isotropic and cross-ply.

Is there a cost to use the laminate calculator?

The web application is free to use for all visitors. You can create an account to store custom materials, layups, and tool configurations.

Composite Material Analysis Tool

Trying to be a comprehensive and straightforward web-based laminate calculator for engineers, researchers, and students. Interactively design your laminate and perform analysis using different tools.

Advanced Composite Development Features

CLT Analysis

Complete Classical Laminate Theory calculations with ABD matrix computations and laminate stiffness constants.

Thermal Analysis

Advanced thermal expansion analysis with through-thickness stress calculations and thermal cycling effects.

Laminate Design

Interactive stacking sequence designer with symmetry controls and ply orientation optimization.

Failure Analysis

Comprehensive failure criteria evaluation including Tsai-Wu, Hashin, and maximum stress criteria.

Microcrack Analysis

Advanced microcrack detection and propagation analysis for composite materials under various loading conditions.

Fracture Toughness

Fracture toughness evaluation including mode I, mode II, and mixed-mode fracture analysis.

Material Science

  • Fiber-matrix interface analysis
  • Delamination prediction
  • Composite degradation modeling
  • Fatigue life estimation

Structural Analysis

  • Buckling analysis
  • Dynamic response calculation
  • Impact resistance assessment
  • Creep and relaxation modeling

Quality Control

  • Void content analysis
  • Fiber volume fraction calculation
  • Cure cycle optimization
  • Manufacturing defect detection

Environmental Effects

  • Moisture absorption modeling
  • Temperature cycling effects
  • UV degradation analysis
  • Chemical resistance evaluation