MohrsCircles
Stress in crystal plasticity
$2.99 · Designed for iPad
Master maximum shear stresses and recognize their impact on crystal plasticity! Rotate 3D stress tensors dynamically and ace the τ-max Challenge.
Master the Mechanics of Materials
The Mohr’s Circle Interactive Analysis app is an educational tool, designed to demystify complex stress states. This app provides a seamless, visual, and mathematically rigorous experience to correlate arbitrary stress states with the theory of maximal shear stress according to Tresca.
Why Mohr’s Circle?
In structural and mechanical engineering, understanding how stress transforms at different angles is critical. Our app goes beyond static textbooks by providing a real-time, interactive simulation where you can see the relationship between input stresses and the resulting Mohr’s Circle instantly.
Theoretical Foundation & Background:
To ensure a deep conceptual understanding, the app includes integrated educational slides. These slides break down the underlying mathematics and physical principles, providing the necessary context to bridge the gap between numerical input and mechanical theory.
Key Features for Academic Study:
Comprehensive Theory Slides: Learn the mathematical derivation of stress transformation equations directly within the app.
Tresca Criterion Visualization: Correlate arbitrary stress states with the theory of maximum shear stress (Tresca) to understand the onset of yielding.
Dynamic 3D Visualization: Watch a 3D stress element (cube) rotate in real-time as you adjust parameters. This visual feedback is crucial for understanding the spatial orientation of principal planes.
Focus on Crystal Plasticity: Explore the conceptual link between macroscopic stress tensors and the microscopic origins of material deformation.
Important Notice & Disclaimer:
This application is strictly intended for academic and educational purposes only. It is designed as a visual aid for theoretical study and classroom demonstrations. The results are based on idealized mathematical models and must not be used for engineering design, structural analysis, or any professional/practical application.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New feature: ShearStressChallenge to identify maximal shear stress states. The most important stress state for crystal elasticity and plasticity. User can now play with sliders to find maximal shear stress. Sliders will have rest points at appropriate angles. Easy and fun, find at least three of six possible angle-sets to solve the challenge.
Improved arrangements of optical elements according to different display sizes. Parentheses around Matrix to improve intuitive recognition. Brighter coloring in dark Mode, especially in Mohr’s circles view.
AutoScaling of Mohr’s circles view integrated
Fixed hydrostatic stress
New languages: Italian and Chinese (simple)
The developer, Jorg Gollnick, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jorg Gollnick
- Size
- 36.3 MB
- Category
- Education
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Italian, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 materialmodel - Joerg Gollnick
