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California Polytechnic State University, San Luis Obispo

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Warpage And Shape Distortion In Laser Metal Sintering, Xuan Wang May 2015

Warpage And Shape Distortion In Laser Metal Sintering, Xuan Wang

Industrial and Manufacturing Engineering

Selective Laser Sintering (SLS) is the primary method to fabricate metal and ceramic components in additive manufacturing. Due to the anisotropy of powder material, the sintering rate difference will inevitably causes shape change, distortion , and other defects of sintered parts. In this paper, a continuum model was developed to simulate the SLS process. The developed model has been successful to predict sintering kinetics. The impact of processing parameters, such as laser power, scanning speed, hatching distance, and particle size has been studied . The proposed method provides an innovative tool to optimize SLS process parameters.


Cal Poly To Celebrate Feminist And Queer Studies Journal Launch May 29, Public Affairs Office May 2015

Cal Poly To Celebrate Feminist And Queer Studies Journal Launch May 29, Public Affairs Office

Press Releases

No abstract provided.


Cal Poly Psychology Professor Recieves $100,000 Stem Research Grant, Public Affairs Office May 2015

Cal Poly Psychology Professor Recieves $100,000 Stem Research Grant, Public Affairs Office

Press Releases

No abstract provided.


Executive Committee - Meeting Minutes, 5/14/2015, Academic Senate May 2015

Executive Committee - Meeting Minutes, 5/14/2015, Academic Senate

Academic Senate Minutes

No abstract provided.


Executive Committee - Agenda, 5/14/2015, Academic Senate May 2015

Executive Committee - Agenda, 5/14/2015, Academic Senate

Academic Senate Agendas

No abstract provided.


May 13, 2015 Cal Poly Report, Public Affairs Office May 2015

May 13, 2015 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Cal Poly Creative Writers To Read At 25th Anniversary Byzantium Event May 28, Public Affairs Office May 2015

Cal Poly Creative Writers To Read At 25th Anniversary Byzantium Event May 28, Public Affairs Office

Press Releases

No abstract provided.


Cal Poly Student To Present 'Onward & Upward' Spring Dance Concert May 20-22, Public Affairs Office May 2015

Cal Poly Student To Present 'Onward & Upward' Spring Dance Concert May 20-22, Public Affairs Office

Press Releases

No abstract provided.


Executive Committee - Meeting Minutes, 5/12/2015, Academic Senate May 2015

Executive Committee - Meeting Minutes, 5/12/2015, Academic Senate

Academic Senate Minutes

No abstract provided.


Starting A Company To Be Focus Of May 18 Forum At Cal Poly, Public Affairs Office May 2015

Starting A Company To Be Focus Of May 18 Forum At Cal Poly, Public Affairs Office

Press Releases

No abstract provided.


Cal Poly Student Named American Society Of Landscape Architects Council Of Fellows Scholarship Recipient For 2015, Public Affairs Office May 2015

Cal Poly Student Named American Society Of Landscape Architects Council Of Fellows Scholarship Recipient For 2015, Public Affairs Office

Press Releases

No abstract provided.


Executive Committee - Agenda, 5/12/2015, Academic Senate May 2015

Executive Committee - Agenda, 5/12/2015, Academic Senate

Academic Senate Agendas

No abstract provided.


Cal Poly To Host 'Yoga In America' May Lecture Series, Public Affairs Office May 2015

Cal Poly To Host 'Yoga In America' May Lecture Series, Public Affairs Office

Press Releases

No abstract provided.


Inclusive Excellence Week At Cal Poly Brings Action To Diversity May 8-16, Public Affairs Office May 2015

Inclusive Excellence Week At Cal Poly Brings Action To Diversity May 8-16, Public Affairs Office

Press Releases

No abstract provided.


Waste Heat Generation: A Comprehensive Review, Nazli Yeşiller, James L. Hanson, Emma H. Yee May 2015

Waste Heat Generation: A Comprehensive Review, Nazli Yeşiller, James L. Hanson, Emma H. Yee

Civil and Environmental Engineering

A comprehensive review of heat generation in various types of wastes and of the thermal regime of waste containment facilities is provided in this paper. Municipal solid waste (MSW), MSW incineration ash, and mining wastes were included in the analysis. Spatial and temporal variations of waste temperatures, thermal gradients, thermal properties of wastes, average temperature differentials, and heat generation values are provided. Heat generation was influenced by climatic conditions, mean annual earth temperatures, waste temperatures at the time of placement, cover conditions, and inherent heat generation potential of the specific wastes. Time to onset of heat generation varied between months …


Computational Aerodynamic Analysis Of A Micro-Ct Based Bio-Realistic Fruit Fly Wing, Joshua Brandt, Graham Doig, Naomi Tsafnat May 2015

Computational Aerodynamic Analysis Of A Micro-Ct Based Bio-Realistic Fruit Fly Wing, Joshua Brandt, Graham Doig, Naomi Tsafnat

Aerospace Engineering

The aerodynamic features of a bio-realistic 3D fruit fly wing in steady state (snapshot) flight conditions were analyzed numerically. The wing geometry was created from high resolution micro-computed tomography (micro-CT) of the fruit fly Drosophila virilis. Computational fluid dynamics (CFD) analyses of the wing were conducted at ultra-low Reynolds numbers ranging from 71 to 200, and at angles of attack ranging from -10° to +30°. It was found that in the 3D bio-realistc model, the corrugations of the wing created localized circulation regions in the flow field, most notably at higher angles of attack near the wing tip. Analyses …


As-797-15 Resolution On Proposal To Establish A Master Of Science In Nutrition, Food Science And Nutrition Department May 2015

As-797-15 Resolution On Proposal To Establish A Master Of Science In Nutrition, Food Science And Nutrition Department

Academic Senate Resolutions

No abstract provided.


As-796-15 Resolution On The New Registration System, Tom Gutierrez And Harvey Greenwald May 2015

As-796-15 Resolution On The New Registration System, Tom Gutierrez And Harvey Greenwald

Academic Senate Resolutions

No abstract provided.


Lt. Gov. Newsom And Former State Sen. Blakeslee Trail-Blaze Digital Platform To Transform Government Transparency, Public Affairs Office May 2015

Lt. Gov. Newsom And Former State Sen. Blakeslee Trail-Blaze Digital Platform To Transform Government Transparency, Public Affairs Office

Press Releases

No abstract provided.


Cal Poly Wind Bands To Perform In Concert With Guest Artists June 5, Public Affairs Office May 2015

Cal Poly Wind Bands To Perform In Concert With Guest Artists June 5, Public Affairs Office

Press Releases

No abstract provided.


Academic Senate - Meeting Minutes, 5/5/2015, Academic Senate May 2015

Academic Senate - Meeting Minutes, 5/5/2015, Academic Senate

Academic Senate Minutes

No abstract provided.


Cal Poly June 6 Symphony To Perform Tchaikovsky's Symphony No. 5; Flutist Suzanne Duffy To Be Featured, Public Affairs Office May 2015

Cal Poly June 6 Symphony To Perform Tchaikovsky's Symphony No. 5; Flutist Suzanne Duffy To Be Featured, Public Affairs Office

Press Releases

No abstract provided.


Cal Poly Student Ensemble To Stage 'Kinship/Being Frank' Concert June 2&4, Public Affairs Office May 2015

Cal Poly Student Ensemble To Stage 'Kinship/Being Frank' Concert June 2&4, Public Affairs Office

Press Releases

No abstract provided.


Cal Poly English Department Names 2015 American Scholar Prize Winner, Public Affairs Office May 2015

Cal Poly English Department Names 2015 American Scholar Prize Winner, Public Affairs Office

Press Releases

No abstract provided.


As-795-15 Resolution On Faculty, Staff, And Management Compensation, Manzar Foroohar, Ascsu Senator May 2015

As-795-15 Resolution On Faculty, Staff, And Management Compensation, Manzar Foroohar, Ascsu Senator

Academic Senate Resolutions

No abstract provided.


Academic Senate - Agenda, 5/5/2015, Academic Senate May 2015

Academic Senate - Agenda, 5/5/2015, Academic Senate

Academic Senate Agendas

No abstract provided.


Five Student Startups Split $45,000 In Innovation Quest Competition At Cal Poly, Public Affairs Office May 2015

Five Student Startups Split $45,000 In Innovation Quest Competition At Cal Poly, Public Affairs Office

Press Releases

No abstract provided.


Directed Energy For Relativistic Propulsion And Interstellar Communications, Philip Lubin, Gary Hughes, J Bible, Isabella Johansson May 2015

Directed Energy For Relativistic Propulsion And Interstellar Communications, Philip Lubin, Gary Hughes, J Bible, Isabella Johansson

Statistics

An orbital planetary defense system that is also capable of beamed power propulsion allows mildly relativistic spacecraft speeds using existing technologies. While designed to heat the surface of potentially hazardous objects to the evaporation point to mitigate asteroid threats the system is inherently multi-functional with one mode being relativistic beamed spacecraft propulsion. The system is called DE-STAR for Directed Energy Solar Targeting of Asteroids and exploRation. DE-STAR is a proposed orbital platform that is a modular phased array of lasers, powered by the sun. Modular design allows for incremental development, test and initial deployment, lowering cost, minimizing risk and allowing …


Cal Poly Workshop To Highlight Methods To Assess Soil Organic Matter, Nutrient Levels, Public Affairs Office May 2015

Cal Poly Workshop To Highlight Methods To Assess Soil Organic Matter, Nutrient Levels, Public Affairs Office

Press Releases

No abstract provided.


Latin Jazz Trombonist Wayne Wallace To Play With University Jazz Bands At Cal Poly May 30, Public Affairs Office May 2015

Latin Jazz Trombonist Wayne Wallace To Play With University Jazz Bands At Cal Poly May 30, Public Affairs Office

Press Releases

No abstract provided.