Engineering Commons^™

Global Response For Capacity Building Of Disaster Preparedness: A Tiems Initiative, Kåre H. Drager, Thomas V. Robertson

International Institute for Infrastructure Resilience and Reconstruction (I3R2) Conference

At the end of 2013, the devastating consequences of the Typhoon Haiyan that struck the Philippines on November 8, 2013, were exposed worldwide through intensive media coverage. The death toll reached more than 6,000 people, and around one million people were displaced and in desperate need of help and support. The international community queued up to offer support and help and showed that worldwide solidarity works when we know our “brothers and sisters” are in desperate need of help. But how can this international community, eager to respond when disaster strikes, better help before disasters strike? Vulnerable areas in the …

Compare And Contrast Major Nuclear Power Plant Disasters: Lessons Learned From The Past, Sayanti Mukhopadhyay, Makarand Hastak Dr., Jessica Halligan

International Institute for Infrastructure Resilience and Reconstruction (I3R2) Conference

The construction of nuclear power plants is a major step towards reducing greenhouse gas emissions compared to the conventional coal-fired or oil-fired power plants. However, some of the major nuclear accidents in the past have raised questions about the safety and reliability of nuclear power plants. This paper compares and contrasts the major nuclear accidents of the past for example, the Chernobyl disaster (USSR), the Fukushima Daiichi disaster (Japan), and the Three Mile Island incident (USA). Although each of the accidents was unique, a thorough comparison found some common issues, such as faulty design of reactors and safety systems, safety …

Postdisaster Reconstruction Of Horizontal Infrastructure Systems: A Review Of The Christchurch Rebuild, Kristen A. Macaskill

International Institute for Infrastructure Resilience and Reconstruction (I3R2) Conference

This paper investigates the decision-making processes guiding postdisaster infrastructure reconstruction— concentrating on wastewater, water supply, stormwater and road networks (“horizontal infrastructure”). It draws on empirical analysis of the postearthquake reconstruction currently underway in Christchurch, New Zealand.

Restoring infrastructure services to provide at least a basic level of essential services after a disaster helps wider economic recovery. Subsequently, there is pressure to restore infrastructure services to predisaster levels as quickly as possible. Reconstruction programmes thus commence in highly uncertain decision-making environments and are reactive to perceived, immediate needs. The extent and nature of the work is later clarified and re-evaluated as …

Influence Of Decision Making During Disasters And How It Impacts A Community, Jayanrtha Withanaarachchi, Sujeeva Setunge

International Institute for Infrastructure Resilience and Reconstruction (I3R2) Conference

The frequency of natural disasters occurrences has increased and is becoming noticed by many due to the impact on economy, society, and the environment.

Decision making during disasters contributes towards community safety and resilience. Decisions taken to protect people from disasters have an impact on society, economy, environment, travel patterns, and reliability and performance of transport networks.

Decisions often affect the performance of transport networks and critical infrastructure systems during disasters and during demand times. Decision making and decision styles which were observed during disaster events will show the areas that the decisions have worked well or created more risks …

Selecting A Temporary Debris Management Site For Effective Debris Removal, Jooho Kim, Abhijeet Deshmukh, Makarand Hastak

International Institute for Infrastructure Resilience and Reconstruction (I3R2) Conference

The overall debris removal after disasters is often prolonged due to the huge amount of debris and lack of capacities such as a Temporary Debris Management Site (TDMS) in the community. This results in a delay of overall recovery and increases the total recovery cost. Strategic planning and building a TDMS will help in providing extra time for proper disposal of debris and clearing a disaster-impacted site that will facilitate the reconstruction process. This paper presents a unique approach for identifying and selecting TDMS locations for expediting debris removal from the community. A hypothetical example of a community impacted by …

A Novel Microgrid Demand-Side Management System For Manufacturing Facilities, Terance J. Harper, William J. Hutzel, James C. Foreman, Aaron L. Adams, Athula Kulatunga

Purdue Polytechnic Masters Theses

Thirty-one percent of annual energy consumption in the United States occurs within the industrial sector, where manufacturing processes account for the largest amount of energy consumption and carbon emissions. For this reason, energy efficiency in manufacturing facilities is increasingly important for reducing operating costs and improving profits. Using microgrids to generate local sustainable power should reduce energy consumption from the main utility grid along with energy costs and carbon emissions. Also, microgrids have the potential to serve as reliable energy generators in international locations where the utility grid is often unstable.

For this research, a manufacturing process that had approximately …

Viewing An Interdisciplinary Human-Centered Design Course As A Multiteam System: Perspectives On Cooperation And Information Sharing, Elizabeth S. Fleming, Alexandra E. Coso

Design Thinking Research Symposium

Many design projects, including human-centered design (HCD) projects, incorporate multiple teams cooperating within what is referred to as a Multiteam System (MTS) environment. These teams mutually rely on resources and processes provided by other teams. As an MTS increases in complexity, knowledge is distributed to more individuals. While effectively distributed knowledge increases creativity and productivity, it is also can hinder team effectiveness. Team members may fail to exchange relevant information or to integrate pertinent information into reasoning for design decisions. Our research addresses information sharing among teams and individuals in HCD by examining interactions between and within the MTS (i.e., …

Making Design Pedagogical Content Knowledge Visible Within Design Reviews, Robin Adams, David Radcliffe, Tiago Forin, Mel Chua

Design Thinking Research Symposium

Design pedagogical content knowledge (PCK) is the content-specific specialized teacher knowledge that connects the how (pedagogical knowledge) and what (content knowledge) of teaching design. In this study, we make visible the design PCK in three student design reviews: choreography, undergraduate industrial design, and mechanical engineering. We use cognitive apprenticeship and teaching-as-improvisation frameworks to characterize PK, and design judgment, design task strategies, and process management strategies to characterize CK. We identify and describe four patterns of design PCK: scaffolded articulation, driving for meaning and guidance, breaking the 4^th wall to create a teaching moment, and “suggest don’t tell”. Theoretical implications …

Question Asking In Design Reviews: How Does Inquiry Facilitate The Learning Interaction?, Carlos C. M. Cardoso, Özgür Eriş, Petra Badke-Schaub, Marco Aurisicchio

Design Thinking Research Symposium

Design reviews are common educational practice in design disciplines, where students meet with instructors and other stakeholders to discuss the progress of a project they are engaged in. Such reviews are tightly coupled with project-based learning approaches in the design studio. A number of research studies have looked into various characteristics of instructor-student interactions during design reviews. In this study, we investigated the question-asking behavior of instructors, students and clients. We paid particular attention to high-level questions that relate to causal and generative reasoning. We analyzed 22 reviews involving six undergraduate industrial designers, who undertook design projects individually. We observed …

Concrete Carbonation And Chloride Resistance Under Initial Hot Water Curing, Guo Li, Xiaoling L. Li, Rongrong R. Wei, Jianmin M. Du, Xiaosuo S. Wu

International Conference on Durability of Concrete Structures

Three concrete mix proportions were designed and prepared, respectively, such as fly ash concrete (abbreviated as “FAC”) with 30% fly ash replacement ratio of cement, fly ash, and slag concrete (abbreviated as “FSC”) with each of 20% fly ash and slag replacement ratio and ordinary Portland cement concrete (abbreviated as “OPC”) for the research of carbonation and chloride resistance of concrete under different initial hot water curing. Specimens with precuring were put into 20°C water tank for curing firstly until a certain compressive strength of 14 MPa reached after demolding, while specimens without precuring were put into 40, 60, and …

Effect Of Intermolecular Potential On Compressible Couette Flow In Slip And Transitional Regimes, Andrew B. Weaver, A Venkattraman, Alina A. Alexeenko

School of Aeronautics and Astronautics Faculty Publications

The effect of intermolecular potentials on compressible, planar flow in slip and transitional regimes is investigated using the direct simulation Monte Carlo method. Two intermolecular interaction models, the variable hard sphere (VHS) and the Lennard-Jones (LJ) models, are first compared for subsonic and supersonic Couette flows of argon at temperatures of 40, 273, and 1,000 K, and then for Couette flows in the transitional regime ranging from Knudsen numbers (Kn) of 0.0051 to 1. The binary scattering model for elastic scattering using the Lennard-Jones (LJ) intermolecular potential proposed recently [A. Venkattraman and A. Alexeenko, “Binary scattering model for Lennard-Jones potential: …

Dimensions Of Creative Evaluation: Distinct Design And Reasoning Strategies For Aesthetic, Functional And Originality Judgments, Bo T. Christensen, Linden J. Ball

Design Thinking Research Symposium

The datasets provided as part of DTRS-10 all relate to what may broadly be labeled as ‘design critiques’ in an educational context. As such, we chose to center our theoretical analysis on the evaluative reasoning taking place during expert appraisals of the design concepts that were being produced by industrial design students throughout the design process. This overall framing for our research allowed us to pursue a series of research questions concerning the dimensions of creative evaluation in design and their consequences for reasoning strategies and suggestions for moving further in the creative progress. Our transcript coding and analysis focused …

Higher Order Thinking In Design Reviews, Craig D. Howard, Colin M. Gray

Design Thinking Research Symposium

In this study we have grappled with how higher order thinking emerges in early stage design reviews, using an undergraduate dyadic review and a graduate review in a small group setting. Narratives, gambits and justifications emerged through a content analysis as forms of higher order thinking common in the reviews. We then mapped these reviews onto common frames of reference employed by teachers and students. Results depicted stark differences in the linguistic routines of the two teachers and two different sets of students. Each focused their higher order thinking from a primarily different frame of reference. Conclusions relate to opportunistic …

Influences Of Feedback Interventions On Student Concept Generation And Development Practices, Seda Yilmaz, Shanna Daly

Design Thinking Research Symposium

Design teaching in many disciplines relies on feedback as a primary way for students and instructors to communicate. Our work focused on identifying feedback types in three different design disciplines (dance choreography, industrial design, and mechanical engineering) and analyzing how those feedback types encouraged students to take convergent or divergent paths with their design ideas. We then compared feedback types and encouragement of convergence or divergence across the three disciplines. Our findings showed many common types of feedback used across the three disciplines, regardless of variance in context and expectations. However, the findings also revealed a high frequency of feedback …

Describing Creativity In Design Across Disciplines, Llew Mann, Yasemin Tekmen Araci

Design Thinking Research Symposium

Creativity is an essential aspect of design thinking. Being able to describe creativity and creative processes is important for developing future designers. While much research has been undertaken describing creativity in design, there is very little investigating how creativity and creative thinking varies across disciplines. A coding scheme involving six separate codes was developed initially from the literature, refined and then used to describe how creativity and creative thinking was apparent in the DTRS 10 datasets of Junior Industrial Design, Graduate Industrial Design, Mechanical Engineering, Choreography and Entrepreneurship. Based on this analysis, conclusions on how creativity and creative thinking varied …

Analyzing The Display Of Professional Knowledge Through Interpersonal Interactions In Design Reviews, Neeraj Sonalkar, Ade Mabogunje, Larry Leifer

Design Thinking Research Symposium

Design review in an educational setting is an activity that helps educators in assessing students’ progress, and provides opportunities for students to learn how professionals in the field perceive and judge design-in-process, aka professional vision. In this study we analyzed design reviews to understand how interpersonal interactions between participants provides a context for the expression of professional knowledge. We identified episodes of professional vision interaction, and examined the interpersonal responses that constitute a design review meeting. The results of the analysis demonstrated how the context for the display of professional vision was co-created through interactions between the reviewer and the …

Exploring The Role Of Empathy In A Service-Learning Design Project, Nicholas D. Fila, Justin L. Hess

Design Thinking Research Symposium

The emergence of empathic design has inspired growing discourse on the role of empathy within design. While research on empathic design acknowledges the presence of empathy in design practice, little attention has been paid to its underlying mechanisms and how these mechanisms operate within the designer’s mind throughout the design process. In this study, we used the service-learning data set to develop an emergent empathic design model. We collected and analyzed any instances in which designers evidenced empathy for the end users. We kept empathy loosely defined due to the exploratory intent of this study and the recognition that empathy …

Strain Modulations As A Mechanism To Reduce Stress Relaxation In Laryngeal Tissues, Eric J. Hunter, Thomas Siegmund, Roger W. Chan

School of Mechanical Engineering Faculty Publications

Vocal fold tissues in animal and human species undergo deformation processes at several types of loading rates: a slow strain involved in vocal fold posturing (on the order of 1 Hz or so), cyclic and faster posturing often found in speech tasks or vocal embellishment (1–10 Hz), and shear strain associated with vocal fold vibration during phonation (100 Hz and higher). Relevant to these deformation patterns are the viscous properties of laryngeal tissues, which exhibit non-linear stress relaxation and recovery. In the current study, a large strain time-dependent constitutive model of human vocal fold tissue is used to investigate effects …

Pre-College Engineering Participation Among First-Year Engineering Students, Noah Salzman, George Dante Ricco, Matthew Ohland

School of Engineering Education Graduate Student Series

In recent years, engineering content is increasingly appearing in the K-12 classroom. This growth can be attributed to increased acceptance of engineering as an area of study at the K-12 level, the growing inclusion of engineering content in state and national educational standards,and the growth of outreach activities intended to increase students’ interest in pursuing degrees and careers in engineering. As pre-college engineering programs grow, first-year engineering students are arriving in university engineering programs with significant prior exposure to engineering content and practices. Despite this growth, little research exists that explores the prevalence of participation in these programs or the …

Building Effective Partnership Networks When Working Internationally, Lindsey Anne Nelson

School of Engineering Education Graduate Student Series

Building Effective Partnership Networks In order to engage communities around the world, engineering educators must build networks with relevant community organizations. Many factors can compound building effective networks. Organizations have different philosophies about how engineers should undertake community engagement. These philosophies include convictions that engineers should develop low-cost products suitable for markets in marginalized communities, engineers should devise clever solutions to help people living in poverty meet basic needs, engineers must effectively respond to socio-cultural considerations when proposing solutions, and engineers should work to empower local artisans who have already begun seeking solutions to pressing problems.Additionally, university programs have to …

The Distribution Of Family-Friendly Benefits Policies Across Higher Education Institutions: A Cluster Analysis, Corey T. Schimpf, Joyce B. Main

School of Engineering Education Graduate Student Series

Cluster Analysis of Family-Related Benefits Policies across U.S. Academic Institutions Although the under-representation of women in science and engineering tenure-track faculty positions is often linked to the conflict between childcare responsibilities and the normative academic tenure-track pathway, previous studies have tended to focus on individual life choices,rather than the effects of institutional-level policies and structure. More recent research on work/life policies in higher education have pushed our understanding of how organizational structure and political climates at the department and institution levels influence the ability of faculty members to integrate career and life responsibilities. Many post-secondary institutions offer more generous work/life …

Evolution Of Data Creation, Management, Publication, And Curation In The Research Process, Lisa Zilinski, Darcy Bullock, Deborah Horton, David Scherer, Courtney E. Matthews

Libraries Faculty and Staff Presentations

Sharing research data and scholarship is of national importance due to the increased focus on maximizing return on the government’s investment in research programs. Recent policy changes have directly affected the management and accessibility of publically-funded research. On January 18, 2011 the National Science Foundation (NSF) required data management plans to be submitted with all grant proposals. On February 22, 2013, the Office of Science and Technology Policy of the President of the United States extended a similar requirement to all federal agencies with research and development budgets of more than $100 million. These requirements illustrate the need for further …

A Cross-Case Analysis Of Disciplinary Identities Communicated Through Design Reviews, Senay Purzer, Nicholas D. Fila, Emily C. Dick

Design Thinking Research Symposium

In post-secondary educational settings, discourse is a mechanism by which students develop occupational identities as they engage in a particular community that communicates attributes of their prospective profession. This study focuses on revealing disciplinary identities and how they are conveyed and negotiated during interactions between design students and project reviewers. We draw upon Gee’s identity framework and focus on the enactments of disciplinary identity in three different disciplinary settings: choreography, industrial design, and mechanical engineering. A cross-case analysis indicated differences that were epistemological (e.g., subjectivity of reviews) and similarities in ways instructors modeled institutional identities. The results have implications for …

Freeze Thaw Durability Of Internally Cured Concrete Made Using Superabsorbent Polymers, Wesley A. Jones, W. Jason Weiss

International Conference on Durability of Concrete Structures

The use of superabsorbent polymers (SAPs) to produce internally cured concrete has been shown to be effective in reducing the potential for restrained shrinkage cracking of high performance concrete mixtures. However, not much is known regarding the freeze–thaw durability of concrete mixtures that incorporate SAPs for internal curing (IC). When SAP particles desorb (or partially desorb) the “water” (pore fluid) they contain for the purposes of IC, some believe that the void space created by these particles can provide enough empty voids to accommodate the additional volume caused by water expansion upon freezing. This paper investigates the freeze–thaw durability of …

Learning And Becoming In Design Reviews, Lisa D. Mcnair, Marie C. Paretti, Cassandra Groen

Design Thinking Research Symposium

Drawing from the prior work of McNair and Paretti (2010), this study investigates how language practices and design artifacts mediate the interactions among novice and expert designers to shape the nature of design, and specifically design learning. By analyzing data collected from two design courses in different fields, this study addresses two research questions: 1) how do language practices mediate the interactions between design mentors and design learners; and 2) how do design artifacts mediate these interactions between mentors and learners? Drawing on activity theory and discourse analysis, we use these questions to explore how students work with experts to …

Influence Of Organic Inhibitor On Corrosion Resistance Of Steel In Simulated Concrete Pore Solution, Jingshun S. Cai, C. C. Chen, J. Z. Liu, J. P. Liu

International Conference on Durability of Concrete Structures

Organic corrosion inhibitor is one of lower cost technologies that limit the deterioration of concrete structures. The influence of a newly prepared organic corrosion inhibitor on the corrosion behavior of carbon steel in simulated concrete pore solution was investigated by polarization curves, electrochemical impedance spectroscopy, and so on. The effect of organic corrosion inhibitors on concrete working performance was also studied. The results show that the corrosion rate decreases with the concentration of inhibitor increase; when the content of inhibitor up to 1.5% versus water, the oxide film was completely passive. Organic corrosion inhibitor had no effect on work performance.

Joint Deterioration In Concrete Pavements, Parth Panchmatia, Jan Olek, Nancy Whiting

International Conference on Durability of Concrete Structures

Concrete pavements located in cold climates have been experiencing premature joint deterioration. Entrapment of moisture in the joints saturates the surrounding concrete, rendering it susceptible to freeze-thaw damage. To identify and to isolate the variables that might be causing this localized deterioration, concrete cores were obtained from deteriorated and non-deteriorated sections of US 35, SR 38 and SR 3 located near Indianapolis, Indiana and I-94 (located near Michigan City, Indiana). The visual evaluation of the condition of the pavement revealed that the drainage of the joints contributes significantly to their performance. Specifically, all deteriorated joint core holes drained poorly when …

Painted Rumble Stripes: Alternatives To Raised Pavement Markers (Rpms), Thomas M. Brennan Jr, Stuart R. Mikey, Darcy M. Bullock

JTRP Posters

This poster highlights research completed by the Joint Transportation Research Program (JTRP) led by Darcy Bullock, Lyles School of Civil Engineering, Purdue University, for JTRP Project SPR-3528, "Alternatives to Raised Pavement Markers (RPMs)." The poster includes photos taken at a construction site on State Road 25 located near Shadeland, Indiana. The top photo demonstrates how the center line corrected a driver when snow covered to avoid oncoming traffic. Photo was taken on US 231 near Country Road 800 in Tippecanoe County.

2013-14 Indiana Interstate Mobility Summary, Steve M. Remias, Howell Li, Darcy M. Bullock

JTRP Posters

These posters highlight the speed and mobility metrics on four of Indiana’s interstates (I-94, I-65, I-465, and I-70). The posters are part of the effort by the Indiana Department of Transportation to characterize mobility concerns on the statewide interstate system.

Application Of Neural Network For Concrete Carbonation Depth Prediction, Daming Luo, Ditao Niu, Zhenping Dong

International Conference on Durability of Concrete Structures

Concrete carbonation is one of the most significant causes of deterioration of reinforced concrete structures in atmospheric environment. However, current models based on the laboratory tests cannot predict carbonation depth accurately. In this paper, the BP neural network is optimized by the particle swarm optimization (PSO) algorithm to establish the model of the length of the partial carbonation zone for concrete. After simulation training, the improved model is applied to a concrete bridge for carbonation depth prediction. The results show that the improved model, which has faster a convergence rate, has a good ability in predicting the length of the …