SwanLab/Swan
Oct 2024 – Oct 2025
13 Months active
Languages Used
MATLABdatXMLPlain TextPostScript
Technical Skills
Finite Element MethodMATLAB ProgrammingNumerical MethodsOptimizationBug FixingBug fixing
Gerard Villalta
PROFILE
Gerard Villalta
Gerard Villalta developed advanced simulation and material modeling capabilities for the SwanLab/Swan repository, focusing on continuum damage mechanics, phase field methods, and hyperelasticity. He engineered modular solvers and refactored core components to improve maintainability, integrating new geometry features and robust benchmarking workflows. Using MATLAB and leveraging object-oriented programming, Gerard enhanced mesh generation, numerical integration, and data visualization pipelines, while stabilizing test suites and expanding coverage for multiple material models. His work addressed complex boundary conditions and improved solver configurability, resulting in more reliable simulations and streamlined onboarding. The depth of his contributions reflects strong engineering rigor and technical breadth.
Overall Statistics
Feature vs Bugs
66%Features
Repository Contributions
275Total
Bugs
48
Commits
275
Features
94
Lines of code
5,314,288
Activity Months13
Work History
October 2025
5 Commits • 2 Features
Oct 1, 2025October 2025 focused on delivering a new geometry capability, hardening the mesh workflow, and strengthening the test suite across multiple material models. Key deliverables include a Circles geometry feature (computeCircles) that determines point containment relative to radii, robust handling of multi-dimensional fValues in UnfittedMeshLagrangian and UnfittedBoundaryMesh, and fixes to boundary condition tests to correctly apply external work, traction and displacement loads. The DiffReact test suite received stability and coverage enhancements, with ElasticityFunctional refactored for multiple material models and HyperelasticityComputer extended for broader boundary conditions, plus expanded StiffnessMass test data. These changes reduce defect risk, improve simulation reliability, and enable safer deployments.
5 Commits • 2 Features
Oct 1, 2025October 2025 focused on delivering a new geometry capability, hardening the mesh workflow, and strengthening the test suite across multiple material models. Key deliverables include a Circles geometry feature (computeCircles) that determines point containment relative to radii, robust handling of multi-dimensional fValues in UnfittedMeshLagrangian and UnfittedBoundaryMesh, and fixes to boundary condition tests to correctly apply external work, traction and displacement loads. The DiffReact test suite received stability and coverage enhancements, with ElasticityFunctional refactored for multiple material models and HyperelasticityComputer extended for broader boundary conditions, plus expanded StiffnessMass test data. These changes reduce defect risk, improve simulation reliability, and enable safer deployments.
October 2025
September 2025
15 Commits • 4 Features
Sep 1, 2025September 2025 performance summary for SwanLab/Swan focusing on delivering new capabilities, improving verification, and stabilizing the codebase to reduce future toil. The work emphasized business value through robust tooling, reliable simulations, and maintainable software practices.
September 2025
15 Commits • 4 Features
Sep 1, 2025September 2025 performance summary for SwanLab/Swan focusing on delivering new capabilities, improving verification, and stabilizing the codebase to reduce future toil. The work emphasized business value through robust tooling, reliable simulations, and maintainable software practices.
August 2025
14 Commits • 3 Features
Aug 1, 2025In 2025-08, SwanLab/Swan delivered core feature work and architectural refinements that standardize material modeling, accelerate onboarding, and improve long-term maintainability. Focused improvements spanned a Kronecker-product utility, a new hyperelasticity tutorial, and a comprehensive refactor of elasticity interfaces and the ContinuumDamage stack, supported by targeted testing work.
14 Commits • 3 Features
Aug 1, 2025In 2025-08, SwanLab/Swan delivered core feature work and architectural refinements that standardize material modeling, accelerate onboarding, and improve long-term maintainability. Focused improvements spanned a Kronecker-product utility, a new hyperelasticity tutorial, and a comprehensive refactor of elasticity interfaces and the ContinuumDamage stack, supported by targeted testing work.
August 2025
July 2025
18 Commits • 4 Features
Jul 1, 2025July 2025 monthly summary for Swan project (SwanLab/Swan). Focused on delivering a modular, more maintainable Hyperelasticity solver, stabilizing the LHS integrator, and advancing Phase Field and damage framework capabilities. The work reduces long-term maintenance cost, improves numerical robustness, and accelerates feature development for simulations in biomechanics and materials modeling.
July 2025
18 Commits • 4 Features
Jul 1, 2025July 2025 monthly summary for Swan project (SwanLab/Swan). Focused on delivering a modular, more maintainable Hyperelasticity solver, stabilizing the LHS integrator, and advancing Phase Field and damage framework capabilities. The work reduces long-term maintenance cost, improves numerical robustness, and accelerates feature development for simulations in biomechanics and materials modeling.
June 2025
18 Commits • 5 Features
Jun 1, 2025June 2025 SwanLab/Swan monthly summary focusing on delivering a robust continuum damage workflow, enhanced benchmarking capabilities, and a cleaner API. Implemented core stability and accuracy improvements for continuum damage mechanics, expanded boundary condition support, and integrated phase-field data assets to support benchmarking and validation. Developed testing and visualization tooling to streamline analysis of damage results, and overhauled the AnalyticalFunction API to enable dynamic ndimf computation and simpler initialization. The month also included targeted bug fixes that stabilized core computations and data pipelines, improving reliability for design decisions and research validation.
18 Commits • 5 Features
Jun 1, 2025June 2025 SwanLab/Swan monthly summary focusing on delivering a robust continuum damage workflow, enhanced benchmarking capabilities, and a cleaner API. Implemented core stability and accuracy improvements for continuum damage mechanics, expanded boundary condition support, and integrated phase-field data assets to support benchmarking and validation. Developed testing and visualization tooling to streamline analysis of damage results, and overhauled the AnalyticalFunction API to enable dynamic ndimf computation and simpler initialization. The month also included targeted bug fixes that stabilized core computations and data pipelines, improving reliability for design decisions and research validation.
June 2025
May 2025
23 Commits • 10 Features
May 1, 2025May 2025 SwanLab/Swan monthly summary: Delivered end-to-end improvements across damage modeling, material modeling readiness, tooling, and test stability. Strengthened DesignVariable integration for damage data flow, advanced hyperelastic readiness for simulations, and expanded tooling for 1D case setup, SEN data, and geometry utilities. Stabilized the test suite and improved reliability of the PhaseField workflow, with updated derivatives and tutorials to reflect recent homogenization changes. Business value includes faster iteration on design-variable-driven damage models, more realistic material responses, and a robust CI pipeline for dependable results.
May 2025
23 Commits • 10 Features
May 1, 2025May 2025 SwanLab/Swan monthly summary: Delivered end-to-end improvements across damage modeling, material modeling readiness, tooling, and test stability. Strengthened DesignVariable integration for damage data flow, advanced hyperelastic readiness for simulations, and expanded tooling for 1D case setup, SEN data, and geometry utilities. Stabilized the test suite and improved reliability of the PhaseField workflow, with updated derivatives and tutorials to reflect recent homogenization changes. Business value includes faster iteration on design-variable-driven damage models, more realistic material responses, and a robust CI pipeline for dependable results.
April 2025
22 Commits • 8 Features
Apr 1, 2025April 2025 Swan development delivered a cohesive set of core material-modeling capabilities, solver enhancements, and repository health improvements, driving higher simulation fidelity, faster validation, and smoother collaboration. Key work spanned hyperelasticity with Voigt notation utilities, a stabilized PF test suite, expanded model coverage, and foundational solver and tutorial capabilities, while pruning legacy structure and documenting changes for onboarding.
22 Commits • 8 Features
Apr 1, 2025April 2025 Swan development delivered a cohesive set of core material-modeling capabilities, solver enhancements, and repository health improvements, driving higher simulation fidelity, faster validation, and smoother collaboration. Key work spanned hyperelasticity with Voigt notation utilities, a stabilized PF test suite, expanded model coverage, and foundational solver and tutorial capabilities, while pruning legacy structure and documenting changes for onboarding.
April 2025
March 2025
29 Commits • 11 Features
Mar 1, 2025March 2025 Swan/Swan monthly summary focusing on stability, feature delivery, and HPC readiness. Highlighted by API updates, expanded numerical capabilities, and strengthened test infrastructure enabling reliable production releases across platforms.
March 2025
29 Commits • 11 Features
Mar 1, 2025March 2025 Swan/Swan monthly summary focusing on stability, feature delivery, and HPC readiness. Highlighted by API updates, expanded numerical capabilities, and strengthened test infrastructure enabling reliable production releases across platforms.
February 2025
38 Commits • 15 Features
Feb 1, 2025February 2025 (2025-02) - SwanLab/Swan: Delivered core geometry and plotting capabilities, expanded mesh features, and substantial codebase stabilization. Features delivered include hexagon rendering, plot readiness, Open Product + Expand, SEN meshes, and homogeneous 2-parameter results. Major bugs fixed improved stability and user experience (e.g., PageKron, Plotter naming collisions, startup path cleanup, ConstantFunction error, DDP). The month also included maintenance work such as master synchronization, branch cleanup, and PhaseField readiness, reducing technical debt and preparing for upcoming PRs. Overall impact: faster feature delivery cycles, more robust rendering and analytics, and a cleaner, more maintainable codebase. Technologies demonstrated: geometry/math enhancements, rendering pipeline, advanced mesh handling, debugging, refactoring, and disciplined code maintenance.
38 Commits • 15 Features
Feb 1, 2025February 2025 (2025-02) - SwanLab/Swan: Delivered core geometry and plotting capabilities, expanded mesh features, and substantial codebase stabilization. Features delivered include hexagon rendering, plot readiness, Open Product + Expand, SEN meshes, and homogeneous 2-parameter results. Major bugs fixed improved stability and user experience (e.g., PageKron, Plotter naming collisions, startup path cleanup, ConstantFunction error, DDP). The month also included maintenance work such as master synchronization, branch cleanup, and PhaseField readiness, reducing technical debt and preparing for upcoming PRs. Overall impact: faster feature delivery cycles, more robust rendering and analytics, and a cleaner, more maintainable codebase. Technologies demonstrated: geometry/math enhancements, rendering pipeline, advanced mesh handling, debugging, refactoring, and disciplined code maintenance.
February 2025
January 2025
9 Commits • 2 Features
Jan 1, 2025January 2025 - SwanLab/Swan monthly summary: Delivered major Phase Field Homogenization enhancements with support for hexagonal and elliptical meshes, reorganization of inputs and results, and a dedicated PhaseFieldHomogenizer class, enabling richer multi-variable simulations and cleaner code. Added SENshear benchmark support with configurable parameters and new results, plus a refactored stopping condition structure. Fixed critical issues in boundary conditions, periodic node pairing, and damage computations, improving accuracy and test reliability. Overall, the work expands modeling capabilities, strengthens benchmarking, and reduces technical debt, delivering clear business value through more robust simulations and faster iteration.
January 2025
9 Commits • 2 Features
Jan 1, 2025January 2025 - SwanLab/Swan monthly summary: Delivered major Phase Field Homogenization enhancements with support for hexagonal and elliptical meshes, reorganization of inputs and results, and a dedicated PhaseFieldHomogenizer class, enabling richer multi-variable simulations and cleaner code. Added SENshear benchmark support with configurable parameters and new results, plus a refactored stopping condition structure. Fixed critical issues in boundary conditions, periodic node pairing, and damage computations, improving accuracy and test reliability. Overall, the work expands modeling capabilities, strengthens benchmarking, and reduces technical debt, delivering clear business value through more robust simulations and faster iteration.
December 2024
18 Commits • 3 Features
Dec 1, 2024December 2024: SwanLab/Swan delivered targeted enhancements to Phase Field simulations, improved damage modeling robustness, and strengthened data/visualization assets for SEN gradient experiments. The work focused on configurable solver parameters, robust mesh data flow, fixes to the circle full damage calculation, and improved data organization and visualization of results, underpinning more reliable experiments and faster insight.
18 Commits • 3 Features
Dec 1, 2024December 2024: SwanLab/Swan delivered targeted enhancements to Phase Field simulations, improved damage modeling robustness, and strengthened data/visualization assets for SEN gradient experiments. The work focused on configurable solver parameters, robust mesh data flow, fixes to the circle full damage calculation, and improved data organization and visualization of results, underpinning more reliable experiments and faster insight.
December 2024
November 2024
65 Commits • 26 Features
Nov 1, 2024November 2024 Swan project: Launched the foundational Swan initialization and completed the startup flow, enabling a reliable onboarding and run-time sequence. Implemented ConstantFunction ndimf support and initiated Multiplot with first-stage rendering (DisplayMultiPlot). Updated mesh and Lagrangian data structures and integrated Lmesh where appropriate. Enhanced results handling and visualization through modularization, stepwise results, and expanded plots, accompanied by a stable tests suite and monitoring hooks. Business value realized includes faster onboarding, more reliable startup, richer visualization for decision making, and a scalable modeling foundation.
November 2024
65 Commits • 26 Features
Nov 1, 2024November 2024 Swan project: Launched the foundational Swan initialization and completed the startup flow, enabling a reliable onboarding and run-time sequence. Implemented ConstantFunction ndimf support and initiated Multiplot with first-stage rendering (DisplayMultiPlot). Updated mesh and Lagrangian data structures and integrated Lmesh where appropriate. Enhanced results handling and visualization through modularization, stepwise results, and expanded plots, accompanied by a stable tests suite and monitoring hooks. Business value realized includes faster onboarding, more reliable startup, richer visualization for decision making, and a scalable modeling foundation.
October 2024
1 Commits • 1 Features
Oct 1, 2024In 2024-10, delivered Adaptive Line Search for Phase Field Simulation in SwanLab/Swan, dynamically adjusting the tau parameter to improve convergence and stability. Implemented updates to PhaseFieldComputer.m and expanded monitoring to track line-search behavior and its impact on convergence. While no explicit major bugs were reported, the feature enhances stability and reliability for larger simulations, reducing iteration counts and improving robustness. This work demonstrates strong capabilities in MATLAB, numerical optimization, and performance tuning, delivering business value through faster, more reliable simulations.
1 Commits • 1 Features
Oct 1, 2024In 2024-10, delivered Adaptive Line Search for Phase Field Simulation in SwanLab/Swan, dynamically adjusting the tau parameter to improve convergence and stability. Implemented updates to PhaseFieldComputer.m and expanded monitoring to track line-search behavior and its impact on convergence. While no explicit major bugs were reported, the feature enhances stability and reliability for larger simulations, reducing iteration counts and improving robustness. This work demonstrates strong capabilities in MATLAB, numerical optimization, and performance tuning, delivering business value through faster, more reliable simulations.
October 2024
Activity
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Quality Metrics
Correctness82.8%
Maintainability83.0%
Architecture80.8%
Performance72.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
MATLABPlain TextPostScriptXMLdat
Technical Skills
3D ModelingBoundary ConditionsBug FixingBug fixingClass RenamingCode CleanupCode DeletionCode DocumentationCode GenerationCode MaintenanceCode ManagementCode OrganizationCode RefactoringCode SimplificationCode Standardization
Repositories Contributed To
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