Late News Poster Session: Mechanics & Structural Reliability
Program Organizers: TMS Administration

Monday 5:30 PM
March 20, 2023
Room: Exhibit Hall G
Location: SDCC


F-4: An End-to-end Crystal Plasticity Framework for Single and Multiscale Analysis as it Relates to ICME: Deepankar Pal1; Grama Bhashyam1; Anupam Neogi1; 1Ansys
     A serious bottleneck towards full adoption of the ICME framework is the unavailability of end-to-end tools resulting in a user organization to negotiate multiple simulation vendor contracts. At Ansys, we believe, that by creating end-to-end tools in a step-by-step manner, the above-mentioned conundrum could be solved. Materials could be classified into Crystalline, Amorphous, Semi-Crystalline and their hybrids. At Ansys, the structure-property ICME vertical wrt Crystal Plasticity takes precedence due to our traditional performance simulation superiority in addition to its relation to our corporate goals.To show effectiveness of our Crystal Plasticity approach, an end-to-end solution will be shown. Salient features include Microstructure preprocessing and meshing in PyAnsys, solution using Ansys Mechanical alongwith post-processing in Ansys Mechanical for result visualization and demonstration of multiscale capabilities using a new Pythonic interface. In addition, material microstructure, boundary condition and mechanistic variations will be demonstrated using practical and innovative case studies.

Microstructural Effect on the Resistance to Fatigue Crack Growth of High-entropy Alloys: Won Hui Jo1; Chohyeon Lee1; Jae Bok Seol1; Hyokyung Sung2; 1Gyeongsang National University; 2Kookmin University
    High-entropy alloys (HEA) has been found to display its superior damage tolerance achieved by the slip planarity and deformation twinning. In the fatigue crack growth (FCG) behavior, the tendency for slip reversibility, originating from a relatively large grain size, were contributed to a higher the threshold stress intensity factor range (ΔKth). In this study, FCG behavior of HEAs with different microstructure was studied under the load ratio of 0.1 at room temperature. Despite increase in grain size to 100 μm, the increment of ΔKth value is restricted compared to the specimen with smaller grain size (30 μm). ΔKth value of the LT specimen is higher than that of the TL specimen due to anisotropic direction of sub-grain structures. Therefore, a systematic study of the FCG behavior enabled to understand the microstructural dependence of ΔKth value in HEAs.