Blast Analysis: Concrete-Filled Corrugated Steel Tube Models
Budget: ₹1,500 – ₹12,500 INR
Project: Blast Analysis of Concrete-Filled Corrugated Steel Tube (CF-CST) Columns — ~50 FE Models
Scope:
Parametric explicit-dynamic FE simulations of CF-CST columns subjected to blast loading. Variables include corrugation angle and selected geometric/material parameters. Deliverables include time-history responses (displacements, velocities, accelerations), damage metrics, support reactions, energy absorption, and high-quality plots/animations for each model.
Key Tasks:
Build/mesh ~50 models (corrugation angle + other parameters: pitch, amplitude, thickness, D/t, L/D, f’c, fy, axial load ratio, etc.).
Apply blast loads (TNT equivalent; stand-off distances; free-air/near-field/contact as applicable) using standard methods (e.g., CONWEP/UFC-based functions).
Use explicit solvers (ABAQUS/Explicit or LS-DYNA). Include strain-rate effects (steel: Cowper–Symonds or Johnson–Cook; concrete: CDP/CSCM).
Output: midspan and critical-point responses, residual deformation, plastic strain/crack/damage maps, interface slip, reaction forces, impulse, energy balances, and failure modes.
Convergence and mesh sensitivity for representative cases.
Clean, reproducible documentation and model files.
Deliverables:
Per-model result bundle (ODB/K files, CSVs, figures, animations).
Master spreadsheet + summary report comparing all 50 runs.
Optional: validation vs. literature SDOF or benchmark case.
What to include in your bid:
Similar blast/explicit FE experience + 2–3 sample figures.
Proposed workflow, software, and timeline.
Fixed price for 50 models
Scope:
Parametric explicit-dynamic FE simulations of CF-CST columns subjected to blast loading. Variables include corrugation angle and selected geometric/material parameters. Deliverables include time-history responses (displacements, velocities, accelerations), damage metrics, support reactions, energy absorption, and high-quality plots/animations for each model.
Key Tasks:
Build/mesh ~50 models (corrugation angle + other parameters: pitch, amplitude, thickness, D/t, L/D, f’c, fy, axial load ratio, etc.).
Apply blast loads (TNT equivalent; stand-off distances; free-air/near-field/contact as applicable) using standard methods (e.g., CONWEP/UFC-based functions).
Use explicit solvers (ABAQUS/Explicit or LS-DYNA). Include strain-rate effects (steel: Cowper–Symonds or Johnson–Cook; concrete: CDP/CSCM).
Output: midspan and critical-point responses, residual deformation, plastic strain/crack/damage maps, interface slip, reaction forces, impulse, energy balances, and failure modes.
Convergence and mesh sensitivity for representative cases.
Clean, reproducible documentation and model files.
Deliverables:
Per-model result bundle (ODB/K files, CSVs, figures, animations).
Master spreadsheet + summary report comparing all 50 runs.
Optional: validation vs. literature SDOF or benchmark case.
What to include in your bid:
Similar blast/explicit FE experience + 2–3 sample figures.
Proposed workflow, software, and timeline.
Fixed price for 50 models