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Practical guidelines & common issues Common basic issues This sub-unit provides a useful summary list of what might be regarded as bad practice, common mistakes, pitfalls and rookie errors. This will hopefully provide a useful list of what to avoid, for the novice user and perhaps bring a smile to the face of the more experienced analyst, who may have come across some of these in their travels. Down-right illegal practices are not included here, although one or two listed may be heading in that direction. Some of the so-called basic issues may perhaps be pardonable when working in a team environment off course i.e. in cases when someone who does know what they are doing is directing you and...more
Credibility is Everything (Or How to Get the Most from Verification and Validation…) 5-minute read Sinothile Baloyi - March 31st 2022 “I have not failed. I've just found 10,000 ways that won't work.” - Thomas Edison Sure, and well done for persisting Edison, but how much did that cost in time and materials? Yikes! Luckily, we have come a long way since, and nowadays we can simulate and perform those 10,000 iterations within much, much shorter time frames and without the cost of physical testing. Great for the company’s finances and the environment, not to mention the engineers – after all, who really wants to repeat the same physical test 10,000 times? But – there’s always a but! – how...more
As companies drive towards virtual product development and complete digital descriptions of their products and manufacturing systems, simulation becomes increasingly important. A company’s actual capability to do simulation well, so it is repeatable, reliable, and robust, can become an important factor in quality, cost and time to market, and overall competitiveness. However, research shows that many companies are failing to achieve an effective (optimum) return on their investment in and commitment to simulation. In this opinion piece, Dr. Keith Meintjes of CIMdata—an internationally recognized authority on Product Lifecycle Management (PLM), proposes that simulation can be demonstrably superior...more
The webinar recording can be viewed by clicking this link. The password can be obtained via the member download button. Overview As companies drive towards virtual product development and complete digital descriptions of their products and manufacturing systems, simulation becomes increasingly important. A company’s actual capability to do simulation well, so it is repeatable, reliable, and robust, can become an important factor in quality, cost and time to market, and overall competitiveness. However, research shows that many companies are failing to achieve an effective (optimum) return on their investment in and commitment to simulation. In this opinion piece, Dr. Keith Meintjes of CIMdata—an...more
As part of our focus on Integrated Computational Materials Engineering (ICME), David Quinn spoke with Louise Wright, Head of Science for Data Science and the Head of Digital Metrology at The National Physical Laboratory (NPL), and chair of the NAFEMS Computational Structural Mechanics (CSM) Working Group, to get the low-down on how we can really unlock the potential of ICME. This article appeared in the April 2023 Issue of BENCHMARK ....more
4. FEM vs. Numerical Simulation In the scenario presented in the previous section, the consultants explained the difference between finite element modeling and numerical simulation. The terms “finite element modeling” and “numerical simulation” are essential in the understanding of the role of Simulation Governance. Please watch this 5-minute video addressing the question of why Numerical Simulation is not the same as Finite Element Modeling. Once finished with this video, proceed to the next section which will offer a series of true/false questions to confirm understanding. Quiz What is the Difference Between Finite Element Modeling and Numerical Simulation? This question cannot be answered...more
Presentation made by I. Riaz at the NAFEMS Americas Conference 'New Frontiers in Product Modeling and Simulation' that was held in Seattle, Washington on 7-9 June 2016....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
This presentation was made at the 2019 NAFEMS World Congress in Quebec Canada Resource Abstract The expansion of the use of simulation across the product lifecycle is critically dependent on full confidence in the veracity of the results of numerical simulations. It’s not sufficient that the results are correct, the process through which the results are obtained to support business or regulatory decisions needs to be transparent, traceable, repeatable and fully documented. Traditional manual documentation methods based on notebooks and shared drives are no longer fit for purpose in a world of simulation data sets of increasing complexity distributed across virtual teams. Free format reporting...more
Presentation made by V. Balabanov, T. Lacaux, S. Georgiadis, D. Trop, M. Schemat, B. Schlaepfer, M. Frenzel, D. Heiserer at the NAFEMS Americas Conference 'New Frontiers in Product Modeling and Simulation' that was held in Seattle, Washington on 7-9 June 2016....more
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