• Home
  • Mary Kathryn Thompson
Mary Kathryn Thompson

Mary Kathryn Thompson

Ph.D.

About

99
Publications
117,057
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
2,646
Citations
Additional affiliations
September 2012 - September 2015
Technical University of Denmark
Position
  • Professor (Associate)
January 2010 - September 2012
Korea Advanced Institute of Science and Technology
Position
  • Professor (Associate)
September 2007 - January 2010
Korea Advanced Institute of Science and Technology
Position
  • Professor (Assistant)

Publications

Publications (99)
Chapter
Additive Manufacturing (AM) enables designers to consider the benefits of digital manufacturing from the early stages of design. This may include the use of part integration to combine all required functions, utilizing multiple materials, moving assemblies, different local properties such as colour and texture, etc. Cost analysis can also be factor...
Article
This work studies multiscale analyses and characterizations of surface topographies from the engineering and scientific literature with an emphasis on production engineering research and design. It highlights methods that provide strong correlations between topographies and performance or topographies and processes, and methods that can confidently...
Article
Design for Manufacturing and Assembly (DfMA) has great potential for minimizing late engineering changes (ECs) that impede high-speed product development and delay time-to-profit. However, our understanding of DfMA and its implementation in industry is still incomplete. This paper presents an industrial case study on late ECs in high-speed product...
Chapter
This chapter provides an overview of postprocessing in ANSYS. You will learn about the types of results that are and can be calculated in ANSYS, where those results are stored, and how to access them. Next, you will learn about various results display options. You will learn how to list, plot, graph, animate, operate on, and combine results, and ho...
Chapter
In this exercise, you will create a finite element model of a simple Warren truss using direct generation of the nodes and elements. The truss will be modeled using spar (truss) elements. This allows uniaxial tension and compression within the members, but no bending of the members. All joints are pinned and can rotate freely. The pin in the lower...
Chapter
In this exercise, you will perform a transient thermal analysis of a hallway with an exterior composite wall. The outside air is a constant −20°C. There is a light wind outside the house that creates an external convective heat transfer coefficient of 10 W/m²K. The air inside the hallway has an initial constant temperature of 20°C. The natural conv...
Chapter
In this exercise, you will perform a steady state thermal analysis of a metal bar with sharp geometric discontinuities that has been modeled using continuum elements. 500,000 W/m³ of heat is generated over a volume of 5×5×5 cm in the center of the bar. The temperatures of the two ends of the bar are fixed at 100°C. The goal of this analysis is to v...
Chapter
In this exercise, you will use the direct method to modify the first input file from Exercise 10-2 (Input10-2-2mm) to create a batch file with cooking surface temperatures of 100, 150, 200, 250, and 300°C. Finally, you will run the batch file in batch mode and examine the output.
Chapter
This chapter provides an overview of the meshing process in ANSYS. You will learn how to specify the attributes of the elements to be generated and how to set the mesh controls. You will learn about free and mapped meshes and how to generate each one. You will learn about the factors that affect mesh quality and how to determine the quality of a gi...
Chapter
This chapter provides an introduction to finite element analysis and the ANSYS Mechanical APDL family of software. It begins with an overview of the finite element method, its benefits, and its limitations. Next, it introduces a basic 10-step procedure for finite element analysis. This is followed by a brief history of ANSYS and finite element soft...
Chapter
In this chapter, you will learn about the element types available in ANSYS, their properties, and their element families. You will learn how to find and use the element documentation. You will also learn how to choose, define, and delete elements; how to define real constants; and how to define the section properties for your elements.
Chapter
In this exercise, you will create a finite element model of a pipe flange using top down solid modeling techniques. Although the flange itself is axisymmetric, the bolt circle is not. Instead, you will take advantage of the fact that the part is symmetric about two axes and model only 90 degrees of the pipe flange. The fluid inside the pipe is assu...
Chapter
Exercise 4-2 is a continuation of a series of three exercises that perform a steady state structural analysis of a cantilever beam. In Exercise 4-2, you will take advantage of symmetry in the beam cross-section to create a two-dimensional model using PLANE182 elements. The goal of the analysis is to determine the deflection at the end of the beam a...
Chapter
In this exercise, you will build an axisymmetric model of a thin-walled cylindrical pressure vessel. The cylinder is sealed with hemispherical end caps and pressurized to 1 MPa. The goal is to find the radial displacement of the cylindrical walls and the hoop and meridional stresses in the walls that are generated in response to the applied radial...
Chapter
In this chapter, you will learn about material models and how they are implemented in ANSYS. You will also learn how to specify the material model that you wish to use, how to supply material property values, where to find material property data, and how to save your material data for future use.
Chapter
This chapter provides an overview of entity specification, selection, and picking in ANSYS. You will learn about the selection methods and options available in ANSYS, how to use the Select menu and Select commands, and how to save sets of selected entities for future use. You will also learn how to use the Picker, how the Picker operates, and how t...
Chapter
This chapter provides an overview of the activities performed in the solution processor. You will learn how the term “solution” is used in ANSYS. You will learn how to apply boundary conditions and initial conditions to your model. You will learn how to set the solution options, initiate a solution, interpret the solution feedback provided by ANSYS...
Chapter
Exercise 4-3 is a continuation of a series of three exercises that perform a steady state structural analysis of a cantilever beam. In Exercise 4-3, you will create a full three-dimensional model using SOLID186 elements. The goal of the analysis is to determine the deflection at the end of the beam and the stresses throughout the beam. After Exerci...
Chapter
This chapter introduces the organization and behavior of ANSYS. It presents multiple ways to interact with the program and summarizes the types of feedback that ANSYS provides. It also answers common questions including “How do I save files?,” “Where is the Undo button?,” and “Where can I find help?.” Most importantly, it explains why ANSYS may be...
Chapter
In this exercise, you will perform a two-dimensional steady state structural analysis of a notched rectangular plate loaded axially in tension. The geometry will be created using top down solid modeling techniques including Boolean operations. The plate will deform under the applied load, growing longer and thinner. This will force the notches to b...
Chapter
In this chapter, you will learn how to create, debug, and document input files. In the process, you will learn about different approaches to writing input files, how to access the log file, and common features included in GUI-generated log files.
Chapter
In this exercise, you will perform a series of steady state thermal analyses of a rectangular plate with a central hole to explore the impact of the mesh on the solution quality. The plate is thin so it can be modeled in two dimensions. One side of the plate will be held at 400 K while the other side will be at 300 K. This will create a temperature...
Chapter
In this exercise, you will perform a steady state structural analysis of a rectangular plate with a central hole loaded axially in tension. The plate is thin so this can be treated as a two-dimensional problem. You will take advantage of the two axes of symmetry to create a quarter model using bottom up solid modeling. The plate will deform under t...
Chapter
In this exercise, you will focus on postprocessing a steady state structural model of a cylindrical shell. In the first load step, a downward force will be applied to the top of the cylinder. In the second load step, an inward force will be applied to the side of the cylinder. In the third load step, a pressure of 1 MPa will be applied to all inner...
Chapter
In this exercise, you will use the concurrent method to modify the input file from Exercise 10-1 to explore how various assumptions affect the behavior of the system. Assume that the heat has been turned up and the pan in no longer centered on the stove. The heat flux on the bottom of the plate now varies linearly from 1500 to 1200 kW/m2. You will...
Chapter
In this exercise, you will analyze the tensile behavior of a plate with a central hole using a linear elastic material model at room temperature and an elastic–plastic material model at a variety of temperatures. The plate is thin so this can be treated as a two-dimensional problem. The value of the applied load is relatively high. This will cause...
Chapter
In this chapter, you will learn how to create solid model geometry using the ANSYS native solid modeler, how to import geometry from other solid modeling software packages, and how to skip the solid modeling process altogether and directly generate the finite element mesh. You will also learn how to view, manipulate, and interact with solid models...
Chapter
In this exercise, you will use the sequential method to prepare an input file. First, you will perform a static thermal analysis to determine the temperature distribution through a section of steel clad copper cookware. The goal of the analysis is to find the temperature distribution through the plate, the maximum temperature of the plate, and the...
Chapter
Exercise 4-1 is the first of three exercises that perform a steady state structural analysis of a cantilever beam. In Exercise 4-1, you will create a one-dimensional model meshed with beam elements. The goal of the analysis is to determine the deflection at the end of the beam and the stresses throughout the beam. After Exercises 4-1, 4-2, and 4-3...
Article
Full-text available
This paper evaluates and quantifies the repeatability of post-processing settings, such as surface determination, data fitting, and the definition of the datum system, on the uncertainties of Computed Tomography (CT) measurements. The influence of post-processing contributions was determined by calculating the standard deviation of 10 repeated meas...
Article
The past few decades have seen substantial growth in Additive Manufacturing (AM) technologies. However, this growth has mainly been process-driven. The evolution of engineering design to take advantage of the possibilities afforded by AM and to manage the constraints associated with the technology has lagged behind. This paper presents the major op...
Article
Full-text available
This work characterizes and optimizes an outlier detection algorithm to identify potentially invalid scores produced by jury members while grading engineering design projects. The paper describes the original algorithm and the associated adjudication process in detail. The impact of the various conditions in the algorithm on the false positive and...
Article
Full-text available
The design of experimental test parts to characterize micro additive manufacturing (AM) processes is challenging due to the influence of the manufacturing and metrology processes. This work builds on the lessons learned from a case study in the literature to derive generalized requirements and high level decompositions for the design of test parts...
Article
Full-text available
The minimum feature size and obtainable tolerances of additive manufacturing processes are linked to the smallest volumetric elements (voxels) that can be created. This work presents the iterative design of a test part to investigate the resolution of AM processes with voxel sizes at the micro scale. Each design iteration reduces the test part size...
Article
This paper introduces a new two-dimensional approach to modeling manufacturing process chains. This approach is used to consider the role of additive manufacturing technologies in process chains for a part with micro scale features and no internal geometry. It is shown that additive manufacturing can compete with traditional process chains for smal...
Conference Paper
Full-text available
The resolution and repeatability of 3D printing processes depends on a number of factors including the software, hardware, and material used. When printing parts with features that are near or below the nominal printing resolution, it is important to understand how the printer works. For example, what is the smallest unit shape that can be produced...
Conference Paper
Full-text available
Axiomatic Design (AD) Theory describes the design process as a mapping of ‘what’ to ‘how’ across four design domains. Every decision during this process is made deliberately, from the highest-level functional requirements to the lowest level process variables. However, it is unclear how and where to document that information within the AD framework...
Chapter
Full-text available
The DCEE 2014 meeting at the Technical University of Denmark focused on interdisciplinarity in design processes while embracing the central issues of the previous workshops: design tools / methods and design education in Civil and Environmental Engineering (CEE).
Conference Paper
Full-text available
This work analyzes and compares traditional subtractive machining processes (milling and turning) and additive manufacturing processes (fused deposition modeling, selective sintering, stereolithography, and 3D printing) in an Axiomatic Design context. The processes are examined from a local and isothermal perspective then as time-varying systems to...
Conference Paper
Full-text available
For over 50 years, personal rapid transit (PRT) has been viewed as one of the most promising ways to provide sustainable, economical, and convenient transportation while reducing reliance on personal automobiles. However, despite concerted efforts around the world, the promise of PRT has yet to be realized. This work demonstrates that different phy...
Article
This paper introduces a model to integrate the traditional requirements process into Axiomatic Design Theory and proposes a method to structure the requirements process. The method includes a requirements classification system to ensure that all requirements information can be included in the Axiomatic Design process, a stakeholder classification s...
Conference Paper
Full-text available
This paper presents an algorithm that was developed to identify statistical outliers from the scores of grading jury members in a large project-based first year design course. The background and requirements for the outlier detection system are presented. The outlier detection algorithm and the follow-up procedures for score validation and appeals...
Article
Full-text available
This paper explores the impact of the rubric rating scale on the evaluation of projects from a first year engineering design course.Asmall experiment was conducted in which twenty-one experienced graders scored five technical posters using one of four rating scales. All rating scales tested produced excellent results in terms of inter-rater reliabi...
Conference Paper
Full-text available
This paper presents an online grading system that was developed to collect, process, and return the grades produced by juries using a series of rubrics in a first year project-based design course. It discusses the design requirements, features, and implementation of the online grading system, as well as reactions from course faculty and staff membe...
Article
Full-text available
The boundaries between engineering design and business are becoming increasingly blurred and the need to produce innovative, entrepreneurial engineering students is growing. This work explores the meaning of innovation and how innovation is currently included in undergraduate curricula. It presents an 8 element model for encouraging innovation in c...
Article
Finite element (FE) modeling of rough surfaces is becoming increasingly common. However, the quality of the assumptions being made in these models, and thus the quality of the models themselves, is often unclear. Decisions about the geometry of the surface to be modeled, including the size of the surface to be modeled, the lateral resolution of the...
Conference Paper
Full-text available
Automated public urban freight transportation networks have the potential to greatly increase the energy efficiency of material transport by more closely matching the mass of the goods being transported with the mass of the transportation apparatus and reduce the cost to society by removing the requirement for human supervision for each package. In...
Article
This work discusses some of the benefits, techniques, challenges, and considerations associated with the incorporation of measured surfaces in finite element (FE) models including how much surface data to measure and import into the model, the shape of the surface geometry to create, the presence and effect of surface layers and impurities, the req...
Article
Full-text available
Environmental sustainability and eco-friendly design are becoming increasingly important in engineering today. This paper discusses green design in the KAIST Freshman Design Program. It is shown that students and faculty members tend to choose green design projects, even when not required. Students have successfully adapted general design processes...
Conference Paper
Full-text available
The need for new transportation paradigms to address the problems associated with widespread dependence on personal automobiles appeared within a few decades of cars becoming available in large numbers, and has been growing ever since. These problems include traffic congestion, noise and air pollution, and the isolation of those without access to p...
Conference Paper
Full-text available
The personal automobile ushered in a renaissance in individual freedom of movement. This general-purpose vehicle is capable of fulfilling almost all of the local and regional transportation needs of the average citizen. It can commute the owner to work and leisure, ferry passengers, deliver packages and groceries, and in many cases can even haul ot...
Conference Paper
Full-text available
All designers and all designs exist and operate in a world with time. It influences all that we create and all that we do. Yet, the role of time in many formal design theories has not been adequately addressed. This work explores some of the issues associated with coupling and conflict in time in formal design theories. The current treatment of tim...
Conference Paper
Full-text available
The life span of artifacts can be viewed as a continuum. At one extreme, disposable materials, components and products go from cradle to grave with very little life in between. At the other extreme, complex systems and infrastructure can stand for decades, centuries, or millennia, slowly evolving based on performance and changing stakeholder needs....
Conference Paper
Full-text available
Design and analysis have historically been viewed as opposites. However, design and analysis are closely related activities which involve similar types of thinking. This work examines the similarities and differences in cognition and education for design and numerical simulation. The educational pedagogy and educational outcomes of a first year des...
Conference Paper
Full-text available
Freshman design courses offer a number of benefits to incoming students and are becoming increasingly popular in universities around the world. At KAIST, an innovative freshman design program has been developed that challenges some of the existing paradigms in design education in general and freshman design education in particular. This paper will...
Conference Paper
Full-text available
Axiomatic design theory (AD) was originally developed to form a scientific basis for mechanical design. This paper takes an in-depth look at axiomatic design theory as a scientific basis for the design of educational courses and curricula. The implications of the first and second axioms for education are discussed and issues associated with couplin...
Conference Paper
Full-text available
The past two decades have seen a revolution in the field of design with increasing interest in the design as a science and a rigorous field of its own. This work discusses some of the challenges for increasing rigor in design education in general, and in freshman design in particular. A model which contains strategies for a more rigorous freshman d...
Conference Paper
Many traditional macro scale finite element models of thermal contact systems have incorporated the effect of micro scale surface topography by applying a constant value of thermal contact conductance (TCC) per unit area to the regions in contact. However, it has been very difficult to determine an appropriate TCC value for a given system and analy...
Thesis
Full-text available
Surface topography has long been considered a key factor in the performance of many contact applications including thermal contact resistance. However, essentially all analytical and numerical models of thermal contact resistance and thermal contact conductance either neglect surface topography or make simplifications and assumptions about the natu...
Conference Paper
Surface topography has long been considered a key factor in the performance of many contact applications. However, essentially all analytical and numerical contact models either neglect surface topography or make simplifications and assumptions about the nature of the surface which limit the quality of the models. This work presents a method for cr...
Conference Paper
Full-text available
Ocean science and engineering are exciting and active fields industry as well as academia. "Revolutionizing" marine science and technology requires that future generations have access to strong academic programs in ocean science and engineering. Undergraduates pursing degree programs in ocean engineering at the Massachusetts Institute of Technology...
Conference Paper
Full-text available
Many engineering fields, including tribology and MEMS, seek to use or alter the behavior of the system at the surface or at the interface between surfaces. Thus, the topography of the surface is of great interest and must be included in finite element simulations. Four methods for generating normally distributed rough surfaces using APDL are propos...
Conference Paper
Full-text available
Finite element analysis usually neglects the contributions of wear and the changes in the surface due to wear. However, wear may be important in any structure subjected to repeated loadings and may be critical for certain tribological applications including the prediction of the sealing potential of surfaces. In this paper, a procedure is proposed...
Thesis
Full-text available
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004. A reversible, Chip-to-Chip microfluidic interconnect was designed for use in high temperature, high pressure applications such as chemical microreactor systems. The interconnect uses two sets of concentric, interlocking rings with trapezoidal cross sectio...
Conference Paper
Full-text available
The design for a reversible microfluidic coupler is proposed for use with microreactors and other MEMS devices. However, real couplers will include imperfections that must be considered to fully evaluate the degree of sealing. A method is presented for applying a normally distributed surface finish with a predetermined amplitude to a perfectly flat...
Thesis
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.

Network

Cited By