Injection moulding simulation report

landing_ribbed_plate_e266

Modeltmpli3701q0.step
MaterialABS
Solvergrid · 2046 cells
Run06a5042f1743
Date2026-10-16 02:56:37
Unitsmm / MPa / °C
SoftwareCavityX 7.0.0

landing_ribbed_plate_e266

Fill simulation report  ·  run 06a5042f1743  ·  2026-10-16 02:56:37

Key results

Fill time5.690 s
Filled100.0 %
Injection pressure (required)80.0 MPa
Peak cavity pressure18.0 MPa
Clamp force4.9 t
Melt / mould temperature229.9 °C / 40.0 °C
Cooling time to eject333.5 s
Volumetric shrinkagemean 1.66 % · max 1.77 %
Max warp deflectionwarp could not build a solid mesh of this part: CAD tet mesh failed (gmsh tet meshing failed (exit 1): eshing failed after retries: size 8.06 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 6.45 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 5.16 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 4.13 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'); grid fallback failed (No module named 'tetgen')
Part mass15.12 g
Air traps / weld lines0 / 0 cells
Short shot0 cells
Fill time
5.6898 s
gate + cavity in series, Q from the pressure solve
Final fill
100.00 %
of cavity volume
Peak cavity P
18.0 MPa
gate velocity 1.2 m/s
Gate dia.
1.56 mm
auto
Melt viscosity
1500 Pa·s
melt 229.9 °C
Gate freeze-off
7.874 s
margin 1.40×

Result views

fill
Fill time
pressure
Pressure at end of fill
temperature
Temperature at end of fill
defects
Defects
sink
Sink marks
shrinkage
Volumetric shrinkage
packp
packp

Fill progress

0.0004890.2480.4960.7440.99201.412.824.235.64time (s)fill fraction

Pressure vs time

3.798.5913.418.22303.426.8410.313.7time (s)peak pressure (MPa)

Temperature vs time

20020821522223003.426.8410.313.7time (s)peak temperature (°C)

Part & mesh

Volume14.400 cm³
Surface area163.2 cm²
Bounding box80.00 × 60.00 × 12.00 mm
Wall thickness2.28 mm mean
Part mass15.12 g
Grid cells2046 wall / 7626 total
Cell size1.951 × 1.935 × 2.000 mm
Grid reach100.0 % of 1 region(s)
Compute backendCPU (SciPy SuperLU direct)
Solve wall time0.6 s

Process

MaterialABS
Injection pressure80.0 MPa
Melt temperature229.9 °C
Mold temperature40.0 °C
Pack pressure—
Number of gates1
Control modepressure-controlled
Required / used injection pressure80.0 MPa
Mean flow rate Q = V/t2.74 cm³/s
Gate pressure drop60.2 MPa
Peak cavity pressure19.8 MPa
Gate shear rate8,987 1/s (limit 50,000)
Machine max pressurenot set

Gates

  • (0.000, 0.000, 0.000) mm

Defects

Air traps0 (0 not reachable by a parting-line vent)
Weld / meld lines0 cells, 0 head-on
Hesitation0 cells
Short shot0 unfilled wall cells
Shear ratemax 866 1/s (limit 50000); 0 cells over; shear heating ≈ 3.4 K
Sink marks155 cells, est. max depth 0.09 mm
Clamp force4.9 t (projected area 48.0 cm²)

Packing, shrinkage & warp

Pack pressure40.0 MPa (default 50% of injection)
Hold ends9.73 s (gate freeze 4.04 s)
Volumetric shrinkagemean 1.66% · max 1.77%
PVT dataKastelic et al. 2026, Polymers 18:1310, Table A2 (ABS Polylac PA757)
Pack modeltime-stepped compressible pack/hold (Tait, Hele-Shaw, slab cooling)
Pressure at end of hold (max)33.0 MPa
Part mass15.61 g at end of fill → 15.92 g (+0.32 g fed during pack)
Warpwarp could not build a solid mesh of this part: CAD tet mesh failed (gmsh tet meshing failed (exit 1): eshing failed after retries: size 8.06 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 6.45 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 5.16 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 4.13 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'); grid fallback failed (No module named 'tetgen')

Accuracy limits: packing is a time-stepped compressible Hele-Shaw solve (Tait PVT) with first-mode slab cooling and frozen-layer growth, gate held at the set pack pressure (no runner/nozzle losses); residual stress from a layered thermo-viscoelastic model (in-mould constraint, Maxwell relaxation); fiber orientation is a fill-direction approximation, not Folgar-Tucker. Published benchmarks: within ~2x on a mould-ΔT case, large under-prediction on flat plates warped by unmodelled effects (see review); treat values as trend indicators, not tolerances.

Pack / hold: gate pressure

15.121.327.533.639.85.9435.965.895.8126time (s)gate pressure (MPa)

Pack / hold: last-to-fill pressure

01.072.143.214.295.9435.965.895.8126time (s)last-to-fill pressure (MPa)

Part mass vs time

15.615.715.815.815.95.9435.965.895.8126time (s)part mass (g)