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Full-Text Articles in Engineering
Modeling Of Frame Structures Undergoing Large Deformations And Large Rotations, Hui Liu
Modeling Of Frame Structures Undergoing Large Deformations And Large Rotations, Hui Liu
Open Access Dissertations
Numerical simulation of large-scale problems in structural dynamics, such as structures subject to extreme loads, can provide useful insights into structural behavior while minimizing the need for expensive experimental testing for the same. These types of problems are highly non-linear and usually involve material damage, large deformations and sometimes even collapse of structures. Conventionally, frame structures have been modeled using beam-frame finite elements in almost all structural analysis software currently being used by researchers and the industry. However, there are certain limitations associated with this modeling approach. This research focuses on two issues, in particular, of modeling frame structures undergoing …
Modeling Picking On Pharmaceutical Tablets, Shrikant Swaminathan
Modeling Picking On Pharmaceutical Tablets, Shrikant Swaminathan
Open Access Dissertations
Tablets are the most popular solid dosage form in the pharmaceutical industry because they are cheap to manufacture, chemically and mechanically stable and easy to transport and fairly easy to control dosage. Pharmaceutical tableting operations have been around for decades however the process is still not well understood. One of the common problems faced during the production of pharmaceutical tablets by powder compaction is sticking of powder to the punch face, This is known as 'sticking'. A more specialized case of sticking is picking when the powder is pulled away form the compact in the vicinity of debossed features. In …