Browsing by Author "Tasnim Hassan, Member"
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- Constitutively Model and Compare the Structural-Mechanical Properties of Jugular Vein Tissue.(2016-10-21) Kaul, Nayyan; Hsiao-Ying Shadow Huang, Chair; Mohammed Zikry, Member; Tasnim Hassan, Member
- Development of A Mechanical Model and Testing Protocol for Permanent Deformation of Asphalt Concrete.(2013-05-16) Choi, Yeong-Tae; Youngsoo Kim, Chair; Murthy Guddati, Member; Mohammed Gabr, Member; Tasnim Hassan, Member
- Development of Failure Criteria for Asphalt Concrete Mixtures under Fatigue Loading.(2012-07-23) Zhang, Jun; Youngsoo Kim, Co-Chair; Murthy Guddati, Co-Chair; Tasnim Hassan, Member
- Experimental and Analytical Investigations of Permanent Deformation Behavior of Asphalt Mixtures under Confining Pressure.(2014-12-15) Cao, Wei; Youngsoo Kim, Chair; Min Liu, Graduate School Representative; Murthy Guddati, Member; Cassandra Castorena, Member; Tasnim Hassan, Member
- Experimental and Nonlinear FEA Investigation of Elbow Leading to a New Definition of the B2 Stress Index(2001-08-31) Tan, Ying; Vernon C. Matzen, Chair; Abhinav Gupta, Member; Tasnim Hassan, Member; James M. Nau, MemberThis study suggests a new margin-consistent procedure for the calculation of the B2 stress index for any piping component, which is the ratio of the collapse moment of a corresponding straight pipe to the collapse moment of the piping component. It gives a B2 value of 1.00 when applied to a straight pipe and a safety margin for the component that is always the same as for the straight pipe. An example of using this definition to calculate the value of B2 is provided. To obtain the collapse moments of piping components, either finite element analysis (FEA) or experiments can be used. This work gives a brief review of nonlinear FEA modeling procedures. Then nonlinear FEA using ANSYS shell models and ABAQUS elbow models are used to simulate two tests on straight pipes and eight tests on elbows under in-plane closing, in-plane opening and out-of-plane bending. Constitutive models and welding effects are discussed. All correlations between FEA and measured experimental results for the load-displacement curves are excellent. It is concluded that nonlinear FEA using ANSYS SHELL181 and ABAQUS ELBOW31 can give quite accurate predictions of the global behavior of elbows and straight pipes under monotonic loading. A very preliminary study for B2' stress index for cyclic loading is also performed, in which two elbow tests subjected to quasi static in-plane cyclic loading were simulated.
- Harnessing of Energy Emanating from Hydrodynamic Cavitation for Manufacturing Processes.(2020-10-30) Pang, Hao; Gracious Ngaile, Chair; Tarek Echekki, Member; Kara Peters, Member; Tasnim Hassan, Member
- High-Temperature Mechanical Properties of Accident-Tolerant Fuel Cladding Materials(2023-06-29) Abouelella, Hamdy Salah Mostafamostafa; Korukonda Murty, Co-Chair; Jacob Eapen, Co-Chair; Tasnim Hassan, Member; Benjamin Beeler, Member; Lingfeng He, Member
- Integration of Metal Forming Process and Real Time Lubricant Formulation Utilizing Hydrodynamic Cavitation.(2018-01-12) Lowrie, James Ballanfonte; Gracious Ngaile, Chair; Tiegang Fang, Member; Jeffrey Eischen, Member; Tasnim Hassan, Member
- Models for Longitudinal Reinforcement Buckling in RC Circular Columns.(2021-12-03) Sosa Caiza, Diego Andrés; Mervyn Kowalsky, Chair; James Nau, Member; Tasnim Hassan, Member; Rudolf Seracino, Member; Thomas Birkland, Graduate School Representative
- Seismic Performance of Steel Pipe Pile to Cap Beam Moment Resisting Connections.(2013-01-08) Fulmer, Steven Joseph; Mervyn Kowalsky, Chair; James Nau, Member; Tasnim Hassan, Member; Rudolf Seracino, Member; Thomas Birkland, Graduate School Representative
- Strain Aging Effects on the Fracture Initiation in Structural Steel Subjected to Monotonic and Cyclic Loading.(2025-10-24) Janashvili, Amiran; Andrew Ziccarelli, Chair; Tasnim Hassan, Member; Mervyn Kowalsky, Member
- Three Dimensional Nonlinear Finite Element Analysis of Airport Pavements.(2011-08-04) Mojarrad, Hamed; M. Rahman, Co-Chair; Akhtarhusein Tayebali, Chair; Tasnim Hassan, Member; Narendra Khosla, Member
- Two-scale Homogenization for Hepatic Steatosis and Fibrosis.(2023-07-14) Shah, Haritya; Murthy Guddati, Chair; Tasnim Hassan, Member; Ghadir Haikal, Member
