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Updated: Jun 2, 2026

Formation of Dispersible Taohong Siwu Tablets
Published on: February 3, 2023
3D simulation of internal tablet strength during tableting
Simo Matti Siiriä1, Osmo Antikainen, Jyrki Heinämäki
1Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, Finland. simo.siiria@helsinki.fi
This study introduces a novel discrete element simulation model to predict powder compression and tablet strength. The model accurately simulates particle bonding and strength distribution during tableting, aiding pharmaceutical development.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Computational Modeling
Background:
- Tablet compression is crucial in pharmaceutical manufacturing.
- Accurate modeling of powder behavior under compression is essential for tablet quality.
- Existing models may not fully capture particle-level interactions during bonding.
Purpose of the Study:
- To develop and validate a new discrete element simulation model for powder compression.
- To simulate particle-particle bond formation during tablet compression.
- To calculate tablet strength distribution based on simulated bond formation.
Main Methods:
- A discrete element simulation model was developed.
- The model incorporates particle-particle bond formation.
- Simulated results were compared with experimental data from microcrystalline cellulose/theophylline pellets.
Main Results:
- Simulated and experimental compression forces showed similar increases.
- Tablet-breaking forces correlated with calculated bond strengths from simulations.
- Calculated bond strength distributions mirrored literature findings for density and pressure, with central variations noted.
Conclusions:
- The discrete element model effectively simulates powder compression and tablet strength.
- The model provides insights into the distribution of bond strengths within tablets.
- Further investigation into central bond strength variations is warranted for enhanced tablet uniformity.
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