FEA in biomechanic with simple static structural
Budget: $30 – $250 USD
Description:
I’m looking for an expert in finite element analysis (FEA) using ANSYS Mechanical APDL or Abaqus to simulate 3D human sacral soft tissue in a supine position, under vertical compression, without dressing or wounds. This model will follow the geometry and boundary conditions described in:
The purpose of this simulation is to:
• Visualize internal pressure and strain distribution in the skin and adipose tissue under loading.
• Replicate intact soft tissue configuration including skin, fat, and bone, based on the referenced paper.
• Evaluate strain concentrations near the sacral bony prominence under body weight pressure.
I will provide:
• Full-text of the reference paper, including geometry, loading, and material data.
• Summary of all material properties (Yeoh model for skin and fat, with constants).
• Annotated sketches for geometry guidance (3D model, single bony prominence).
• Expected loading and friction values from literature.
Simulation Requirements:
• 3D model of sacral region with layers:
– Skin: 1.3 mm thick
– Adipose tissue: 13.3–22.3 mm depending on region
– Sacrum: spherical segment with 110 mm curvature radius
• Bony prominence extrusion: elliptical, 5.2 mm high
• Load: 217 N applied vertically to simulate 47% body weight
• Boundary conditions: fixed mattress base, friction (0.43 skin-mattress)
• Meshing: Use appropriate solid elements (e.g., SOLID185 or C3D8H)
• Output: surface pressure maps and Green-Lagrange shear strain distribution in ROI
Preferred Tool:
ANSYS Mechanical APDL (nonlinear hyperelastic modeling required)
Please respond with:
• A short plan for how you would approach this simulation (steps, tools, assumptions)
• Examples of similar biomechanical simulations you’ve worked on (preferably soft tissue or pressure-related)
• Your estimated cost and expected delivery time
I’m looking for an expert in finite element analysis (FEA) using ANSYS Mechanical APDL or Abaqus to simulate 3D human sacral soft tissue in a supine position, under vertical compression, without dressing or wounds. This model will follow the geometry and boundary conditions described in:
The purpose of this simulation is to:
• Visualize internal pressure and strain distribution in the skin and adipose tissue under loading.
• Replicate intact soft tissue configuration including skin, fat, and bone, based on the referenced paper.
• Evaluate strain concentrations near the sacral bony prominence under body weight pressure.
I will provide:
• Full-text of the reference paper, including geometry, loading, and material data.
• Summary of all material properties (Yeoh model for skin and fat, with constants).
• Annotated sketches for geometry guidance (3D model, single bony prominence).
• Expected loading and friction values from literature.
Simulation Requirements:
• 3D model of sacral region with layers:
– Skin: 1.3 mm thick
– Adipose tissue: 13.3–22.3 mm depending on region
– Sacrum: spherical segment with 110 mm curvature radius
• Bony prominence extrusion: elliptical, 5.2 mm high
• Load: 217 N applied vertically to simulate 47% body weight
• Boundary conditions: fixed mattress base, friction (0.43 skin-mattress)
• Meshing: Use appropriate solid elements (e.g., SOLID185 or C3D8H)
• Output: surface pressure maps and Green-Lagrange shear strain distribution in ROI
Preferred Tool:
ANSYS Mechanical APDL (nonlinear hyperelastic modeling required)
Please respond with:
• A short plan for how you would approach this simulation (steps, tools, assumptions)
• Examples of similar biomechanical simulations you’ve worked on (preferably soft tissue or pressure-related)
• Your estimated cost and expected delivery time