Late News Poster Session: Modeling
Program Organizers: MS&T Administration, MS&T PCC
Tuesday 4:45 PM
October 19, 2021
Room: Exhibit Hall B
Location: Greater Columbus Convention Center
Poster
P3-28: Fatigue Analysis of a Spring Coil Structure under Cyclic Loading Conditions: Sunday Folorunso1; Jian Zhang1; Tejesh Dube1; Jing Zhang1; 1Indiana University – Purdue University Indianapolis
The objective of this student project is to conduct a finite element based analysis on how spring coil behave under cyclic fatigue conditions. The spring coil structure was constructed using a commercial software package. Using a fatigue model, the fatigue life of the structure was determined based on the loading conditions.
P3-29: Finite Element Modeling of Sheet Metal Bending Process: Sunket Kulkarni1; Tejesh Dube1; Jian Zhang1; Jing Zhang1; 1Indiana University – Purdue University Indianapolis
In this graduate student project, a finite element model was developed to simulate the sheet metal bending process. The model consists of top punch, bottom die, and sheet metal. Using a transient analysis, the deformation and stress distribution in the sheet metal forming process is simulated. The model can be used as a design tool to optimize the forming process in the future.
Poster
P3-30: Grain Size-texture Coupling in Crystal Plasticity Finite Element Modeling : Application to Magnesium Alloys: Aaditya Lakshmanan1; Mohsen Andani1; Veera Sundararaghavan1; Amit Misra1; John Allison1; 1University Of Michigan
Grain size refinement is a ubiquitous approach to strengthening the mechanical properties of polycrystalline alloys. The Hall-Petch effect, which refers to a linear relationship between the yield strength and inverse square-root of the average grain size, provides an avenue to phenomenologically capture this strengthening. Crystal plasticity modeling provides a general framework to simulate plasticity in polycrystals while considering the underlying microstructure. In our work, we extend the Hall-Petch relationship to the slip system level to modify the slip system resistance, where the relevant size is the slip system-level grain size, different for each point in the microstructure. The slip system-level Hall-Petch coefficient is modified to include grain boundary information via a power-law dependence on the crystallographic compatibility factor. This method is used to demonstrate the texture-dependent grain-size effect in Mg-4Al (wt %) alloys, employing crystal plasticity finite element simulations via the PRISMS-CPFE open-source software.
Poster
P3-31: Reactive Phase Formation: Kinetics and Associated Microstructure Evolution: Connor Mcnamara1; Helen Chan1; Jeffrey Rickman1; 1Lehigh University
Recent experimental work has shown that beginning with a duplex phase structure (A, B), solid-state reaction can result in synthesis of the product phase (C) as a single crystal. A stochastic numerical simulation procedure has been developed to solve a reaction-diffusion master equation specific to this duplex geometry. In particular, we have employed the so-called τ -leaping technique, an approximation to the inhomogeneous stochastic simulation algorithm, for solving this master equation. The kinetics and microstructural evolution of the reactant phase were modelled in terms of the initial microstructure, the relative rates of diffusion and reaction, and whether nucleation of the product phase is homogeneous or heterogeneous. Implications for the construction of templates that may be employed to facilitate microstructural design will be discussed.
P3-32: Understanding Mechanical Behavior of Basketball Hoops Using Finite Element Modeling: Luc Rulinda1; Jian Zhang1; Tejesh Dube1; Jing Zhang1; 1Indiana University – Purdue University Indianapolis
This student project is focused on understanding the mechanical response of basketball hoop using finite element-based simulations. Two different loading scenarios on a homeowner’s style basketball hoop are simulated. The first loading scenario involves an average-sized NBA player dunking on the rim. This load was considered for a static structural, transient, and fatigue analysis. The second loading condition is the resulting force of someone shooting a basketball that hits the front edge of the rim. This load was considered for stress and fatigue analyses. The results from the simulated tests show that this rim is suitable for the regular use of a homeowner but should not be used for high-intensity play where dunking and hanging from the rim is involved.