4th World Congress on Integrated Computational Materials Engineering (ICME 2017): Integration Framework and Usage - IA
Program Organizers: Paul Mason, Thermo-Calc Software Inc.; Michele Manuel, University of Florida; Alejandro Strachan, Purdue University; Ryan Glamm, Boeing Research and Technology; Georg J. Schmitz, Micress/Aachen; Amarendra Singh, IIT Kanpur; Charles Fisher, Naval Surface Warfare Center
Monday 10:30 AM
May 22, 2017
Room: Salon I
Location: Ann Arbor Marriott Ypsilanti at Eagle Crest
A Vision for Mutliscale Materials and Structural Modeling: David Furrer1; Xuan Liu1; 1Pratt & Whitney
Materials modeling has been rapidly advancing to enable significant changes in how materials area design, developed, defined and implemented. Computational tools and methods are becoming commonplace for many applications. As the materials engineering is evolving, there has also been a progressive acceptance of computational materials engineering into other engineering disciplines, such as design and structural engineering. The future of integrated multiscale materials engineering with other disciplines has been assessed and a vision for this future-state has been constructed. Based on this future-state target, a detailed review of the current technology gaps has been assembled. This effort has provided clear actions that must be taken on by the community to achieve this envisioned future state of multiscale materials and structural engineering. A summary of this effort and proposed actions will be provided.
Insertion of ICME Paradigm to Shipbuilding through Process Simulation: Charles Fisher1; 1Naval Surface Warfare Center
The integrated computational materials engineering (ICME) paradigm has found increased use across the scientific community to enable reduction of costly physical testing and improve efficiency in design selection. Within shipbuilding, the use of computational simulations is prevalent for structural finite-element analysis. However, current practice for FEA simulations does not integrate material processing into the structural design or failure-mode prediction calculations. Thus, the influence of residual stress and distortion induced by the fabrication process are not included in the simulation, yielding uncertainty in the computational models. To address this, numerous projects have initiated to validate thermal loading conditions and computational weld mechanics (CWM) techniques. Programs involving crack mitigation through residual stress reduction at welded joints, physical validation of CWM techniques, and computational software integration will be discussed, as well as identification of technical gaps for implementation. The end goal is improved confidence in, and use of, ICME techniques in order to better serve the shipbuilding enterprise.
An Attempt to Integrate Software Tools at Microscale and Above Towards an ICME Approach
for Heat Treatment of a DP Steel Gear with Reduced Distortion: Deepu John1; Hamidreza Farivar2; Gerald Rothenbucher3; Ranjeet Kumar3; Pramod Zagade4; Danish Khan4; Aravind Babu1; BP Gautham4; Ralph Bernhardt3; G. Phanikumar1; Ulrich Prahl2; 1Indian Institute of Technology Madras; 2Institut für Eisenhüttenkunde(IEHK); 3Simufact Engineering GmbH; 4TRDDC, TCS Research, Tata Consultancy Services
Finite element simulation of heat treatment cycles in steel could be challenging when it involves phase transformation at the microscale. An ICME approach that can take into account the microstructure changes during the heat treatment and the corresponding changes in the macroscale properties could greatly help these simulations. Inter-critical annealing in DP steel involves phase transformation at the microscale and the finite element simulation of this heat treatment could be greatly improved by such an ICME approach. In the present work, phase field modeling implemented in the software package Micress is used to simulate the microstructure evolution during inter-critical annealing. Asymptotic Homogenization is used to predict the effective macroscale thermoelastic properties from the simulated microstructure. The macroscale effective flow curves are obtained by performing Virtual Testing on the phase field simulated microstructure using Finite Element Method. All the predicted effective properties are then passed on to the macro scale FE simulation software Simufact Forming, where the heat treatment cycle for the inter-critical annealing is simulated. The thermal profiles from this simulation are extracted and passed on to microscale to repeat the process chain. All the simulation softwares are integrated together to implement a multi-scale simulation, aiming towards ICME approach.
Integrated Computational Materials Engineering Approach to Development of Lightweight Third Generation Advanced High-Strength Steel (3GAHSS) Vehicle Assembly: Harjinder Singh1; Mahendran Paramasuwom1; Vesna Savic2; Louis G. Hector, Jr.2; Ushnish Basu3; Anirban Basudhar3; Nielen Stander3; 1EDAG, Inc.; 2General Motors; 3Livermore Software Technology Corp.
This presentation will cover an application of integrated computational materials engineering (ICME) for third generation advanced high-strength steels (3GAHSS) to vehicle lightweighting. Following a brief overview of the ICME project, design optimization of a vehicle structure using a multi-scale ICME material model will be presented. Preliminary results show 35% mass reduction potential of a mid-size sedan body side structure with the use of 3GAHSS. Design optimization steps, as well as the challenges in application of ICME models in vehicle design integration and optimization will be addressed. The presentation will conclude with integration steps that are needed to enable vehicle performance metrics driven material development in terms of chemical composition and phase characteristics.
Integrated Microstructure based Modelling of Process-Chain for Cold Rolled Dual Phase Steels: Danish Khan1; Ayush Suhane1; Srimannarayana P1; Akash Bhattacharjee1; Gerald Tennyson1; Pramod Zagade1; B.P Gautham1; 1TRDDC, TCS Research, Tata Consultancy Services, Pune, INDIA
The properties of dual phase (DP) steels are governed by the underlying microstructure, the evolution of which is determined by the processing route. In order to design a dual phase steel with tailored properties, it is therefore important to model and design each of the process involved at the microstructure level in an integrated fashion. In this work, an integrated approach is used to predict the final microstructure and mechanical properties of dual phase steels through microstructure based modelling of cold rolling, intercritical annealing and quenching processes. Starting with a representative volume element (RVE) of initial ferrite-pearlite microstructure, cold-reduction during rolling is simulated in a FEM based micromechanics approach under appropriate boundary conditions. The deformed microstructure with plastic strain energy distribution after cold-reduction serves as input for modelling recrystallization and ferrite to austenite transformation during intercritical annealing using a phase-field approach. A micromechanics based quenching simulation is then used to model austenite to martensite transformation, related volume expansion and evolution of transformational stress/strain fields. The resultant microstructure with its complete state is used to evaluate the flow behavior under uniaxial loading conditions in a FEM based micromechanics approach under periodic boundary conditions. Property variation for different initial microstructure, composition and processing conditions are studied and discussed.
12:10 PM Break