Issues

• 🐛 Bug report | fiber-CDF: stress and tangent do not match (tangent test shows 56% difference)

  bug
  febiosoftware/FEBio#140 · Filter by author longpath1 opened on Oct 24, 2026

• Rigid euler angles convention (User Interface vs solver implementation)

  febiosoftware/FEBio#139 · Filter by author lorenzoongaro01-arch opened on Oct 21, 2026

• 🐛 Bug report | Contact part lists fail to build if a space is used between names

  bug
  febiosoftware/FEBio#137 · Filter by author stevenlabelle opened on Oct 20, 2026

• 🐛 Bug report | possible memory leak in newton solver

  bug
  febiosoftware/FEBio#135 · Filter by author abe-winter opened on Sep 8, 2026
  1

• 🙏 Feature request | cached factorization

  enhancement
  febiosoftware/FEBio#134 · Filter by author abe-winter opened on Sep 5, 2026
  1

• 🐛 Bug report | Issue with fiber map definition in prestrain material

  bug
  febiosoftware/FEBio#127 · Filter by author konris87 opened on Jun 5, 2026
  4

  

• 🐛 Bug report | FEBio crashes if MeshDomains entries are not in correct order

  bug
  febiosoftware/FEBio#126 · Filter by author stevenlabelle opened on Mar 24, 2026

• 🙏 Feature request | Reduced Integration Hex/Quad Shell Elements w Hourglass Control

  enhancement
  febiosoftware/FEBio#119 · Filter by author rmahutga opened on Feb 5, 2026

• 🐛 Bug report | [Bug Title]

  bug
  febiosoftware/FEBio#118 · Filter by author manuellucasso opened on Jan 29, 2026
  1

• 🙏 Feature request | Moving Pressure BC

  enhancement
  febiosoftware/FEBio#117 · Filter by author RyanMahutga opened on Jan 19, 2026

• 🐛 Bug report | Contact penalty, status always output 0

  bug
  febiosoftware/FEBio#116 · Filter by author stevenlabelle opened on Jan 7, 2026
  4

  

• 📓 Documentation request | Potential contact

  documentation
  febiosoftware/FEBio#115 · Filter by author stevenlabelle opened on Dec 17, 2025

• Documentation errors on Rigid section

  febiosoftware/FEBio#114 · Filter by author Kevin-Mattheus-Moerman opened on Nov 12, 2025

• 🐛 Bug report | [LogFile deformation gradients error]

  bug
  febiosoftware/FEBio#113 · Filter by author amyzaling opened on Oct 23, 2025
  1

• User Manual - Materials Chapter Errors

  febiosoftware/FEBio#110 · Filter by author siboles opened on Sep 22, 2025

• Issue: 🐛Bug report | No bounds checking for image gradients

  febiosoftware/FEBio#105 · Filter by author stevenlabelle opened on Apr 7, 2025

• Issue: 🐛Bug report | Image library does not check for file extension and will fail without clear error messages

  febiosoftware/FEBio#103 · Filter by author stevenlabelle opened on Apr 4, 2025

• Issue: 🐛Bug report | Relative volume incorrectly plotted for kinematic growth materials.

  febiosoftware/FEBio#101 · Filter by author stevenlabelle opened on Mar 28, 2025
  2

• Issue: 📖 Documentation request | solid domain spec

  febiosoftware/FEBio#97 · Filter by author stevenlabelle opened on Nov 15, 2024

• need suite of FEBio benchmark problems and script to run them

  from fbs
  febiosoftware/FEBio#95 · Filter by author JeffWeissUT opened on Oct 23, 2024

• Contact pressure logfile report 0 pressure while the plotfile returns precise float values

  febiosoftware/FEBio#94 · Filter by author ckv1110 opened on Oct 8, 2024

• Use vtk fix from FEBioStudio dev version

  febiosoftware/FEBio#84 · Filter by author steffenger opened on Mar 27, 2024
  2

• Expand criteria used for erosion

  enhancement
  febiosoftware/FEBio#78 · Filter by author SteveMaas1978 opened on Dec 15, 2023
  

• Review and document the "neo-Hookean transiso" material.

  documentation
  febiosoftware/FEBio#77 · Filter by author SteveMaas1978 opened on Dec 15, 2023
  

• Document Yeoh material

  documentation
  febiosoftware/FEBio#76 · Filter by author SteveMaas1978 opened on Dec 5, 2023