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This article is from a series of NAFEMS “What is”Guidance leaflets, which are available as free downloads at nafems.org. Other topics in the series include “What is Verification & Validation”, “What is Implicit and Explicit Finite Element Simulation”, “What is SQEP - Suitably Qualified and Experienced Personnel” and “What is Simulation Data Management”....more
Abstract The competition for the design and manufacturing of the best-in-class automotive products is more intense than ever due to technological advances and increased customer expectations. As a result, companies across the automotive industry are looking for innovations to improve their product design and manufacturing cycle time, cost and quality, and CAE simulation innovations and their effective implementations have long been proven to be a key competitive advantage. CAE organizations are also facing pressure to become more competitive and efficient. CAE Management and technical experts must constantly address an ever-growing demand to deliver more analytical product design and manufacturing...more
What’s in a Cookie? 6-minute read Sinothile Baloyi - June 30th 2023 Your favourite packaged cookie. What is it, actually? Let’s just focus on the basic ingredients of the kind of cookie you might bake yourself. So, probably wheat flour, sugar, baking powder, maybe chocolate, butter, and flavourings. Now let’s think about the physical properties of each ingredient, the things that your cookie is before it’s a cookie: Flour - powder Sugar- granular Chocolate - colloid composed of cocoa, fat and sometimes sugar Butter – water in oil emulsion Baking powder – compound powder What about your favourite sauce, ketchup, Brown sauce (Yes, rest of the world outside the UK, that’s what it’s...more
Abstract Analytical modeling and simulation of systems are traditionally done at the component or module levels and usually involve complex 3-D simulations. These types of simulations take a long time to solve but give detailed design direction. In addition, these types of simulations are typically conducted after the project gets into the development life cycle phase. Within a Systems Engineering strategy, modeling and simulation of systems are starting to be done at the product level and usually involve simplified 0-D or 1-D models. These types of simulations run very fast but only give general design direction. In addition, these types of simulations are typically needed during the planning...more
BENCHMARK April 2018 Digital Twins - Believe the Hype? In this Issue... Simulation - The Brains behind Digital Twins When Data Joins Physics VMAP - A new Interface Standard for Integrated Virtual Material Modelling in Manufacturing Industry A Preview of the NIST/TMS Additive Manufacturing Benchmark Test andConference Series What Few People Discuss About Digital Twins Simulation Data Management in Action Digital Twin – Looking Behind the Buzzwords The Digital Twin for Engineering ApplicationsThe Swanson Program at Cornell University PRACE: Empowering Computational Research and Innovation in Europe Excel for Engineers and other STEM Professionals Part 4 Analysis Origins...more
Hendrix, Van Halen, Newton and Einstein by The CAE Guy Back in the 1980s, when I was 16 or 17, I was arguing/discussing the “best” rock and roll guitarist off all time with a high school classmate of mine. While I remember it was a heated “debate” where we agreed to disagree: Long story short [1], I was advocating for Eddie Van Halen and he was advocating for Jimi Hendrix. For a little background, my classmate was a guy that seemed, at the time, to be really into rock and roll as he had the look and feel of a head banger [2,3]. I, on the other hand, was, how should I say this … a naïve computer geek and was just coming aware of the larger world around me. Sure, I had been listening to disco...more
Q&A Session Questions 1. What would be the first action organisations should take when considering a strategy for Engineering Simulation? First step is identifying and gathering your Stakeholders and agreeing your Goals for Simulation. Next step is to identify your detail requirements. i.e. What is the ‘to-do’ list you need Simulation to be able to address. 2. What is the most important action organisations should take to improve their Engineering Simulation Capability? Having identified your goals and requirements the most important action is to identify your current position regarding your processes, methods, tools, models etc… Where are the gaps? 3. What are some of the common issues...more
What are the differences between various differencing and meshing schemes? What are the basics of turbulence, heat transfer, and FSI modelling? What are errors and uncertainties in CFD and how do you reduce them? Get the answers to these questions and more with this industry-leading, code-independent e-learning course. Introduction to Practical CFD New Revised Course for 2025 This course offers attendees fundamental knowledge on using CFD in real-life engineering applications. Adopting a straightforward and moderately technical approach, it outlines the CFD process and explains the advantages and challenges of employing CFD analysis in the simulation of complex flow phenomena, as well as...more
How is plastic behaviour in metals simulated and used in practical engineering applications? What are potential difficulties and challenges in modelling plasticity problems using FE software? What are the potential errors and limitations of the FE plasticity solutions? This course gives you practical advice with a minimum of theory. Metals Material Modelling: Plasticity The course covers plasticity theories that are widely used to analyse practical engineering applications in metals. Mathematical formulations and equations are intentionally kept to a minimum. Emphasis will be placed on how engineering design incorporates these theories and how the FE method models plasticity. Difficulties encountered...more
Tutorial - Bending of a deep curved beam 3D Statement of Purpose The main purpose of this example is to demonstrate the use of 2-D plane stress elements and beam elements to model a curved uniform bar of rectangular cross section. The maximum tensile stress and the maximum compressive stress in the beam will be compared with a theoretical solution. Geometry r o = 9.1mm, r i = 7.0 mm, h = 2.0 mm Analysis Type(s) Linear material, static, small displacement. Material Steel, with Young’s Modulus = 200,000 N/mm 2 , Poisson’s Ratio = 0.3. Loading A bending moment 200Nmm applied at the top end. Boundary Conditions The bottom end is fully fixed while the top end is free. Target Solution...more
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