<div dir="ltr"><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><br></div></div></div></div></div></div></div></div><div class="gmail_quote"><br><div><div><div style="overflow:auto"><div style="max-height:10000px"><div dir="ltr"><p style="text-align:center;clear:both"><img src="cid:5bd56752-b3c7-4544-ad07-6e53ca0fd097" alt="SDSU_CSRC Logo.jpg" style="margin-left:1em;margin-right:1em"></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px;text-align:center"><span style="color:black"><font face="verdana, sans-serif"><br></font></span></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px;text-align:center"><span style="color:black"><font face="verdana, sans-serif"><br>DATE:</font></span><font face="verdana, sans-serif"><span style="font-size:10pt;color:black"> </span><span style="font-size:13.5pt;color:black"> <br></span><b><font size="4">Friday, October 9, 2020</font></b></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px;text-align:center"><b><span style="font-size:18pt"><font face="verdana, sans-serif"><br></font></span></b></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px;text-align:center"><font face="verdana, sans-serif"><span style="font-size:10pt;color:black"></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px;text-align:center"><span style="color:black"><font face="verdana, sans-serif"><br></font></span></p><div dir="ltr"><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="font-size:10pt;color:black"></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black"></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black">TITLE:</span><span style="font-size:10pt;color:black"><br></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="font-size:10pt;color:black"></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font size="6" face="verdana, sans-serif"></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font size="6" face="verdana, sans-serif"><b><span style="background-image:none;background-position:0% 0%;background-repeat:repeat"></span></b></font></p><div style="color:rgba(0,0,0,0.87);text-align:center"><p class="MsoNormal" align="center"><span style="color:rgb(0,0,0);text-align:left"><font face="verdana, sans-serif" size="4"><b>Global Local Model of Ultrasonic Guided Waves Scattering for Non-Destructive Evaluation</b></font></span><font face="verdana, sans-serif" size="4"><b> </b></font></p></div><div style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><font size="6"><b><br></b></font><font size="6"><b></b></font></font><p class="MsoNormal"><b><font face="verdana, sans-serif"><span style="font-size:11pt;color:black"></span></font></b></p><font face="verdana, sans-serif"><font size="6"><b></b></font><font size="6"><b><span style="font-size:12pt"></span></b></font><font size="6"><b></b></font><font size="6"><b><span style="font-size:11pt"></span></b></font></font></div><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black"></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black"></span></font></p><p class="MsoNormal" align="center" style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif" color="#ff0000" size="4"><b>PLEASE BE AWARE OF NEW START TIME</b></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black">TIME:</span><span style="font-size:10pt;color:black"> </span><span style="font-size:13.5pt;color:black"> <br></span><b><font size="4">3:30-4:30PM</font></b></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><br><b><span style="font-size:18pt"><span style="color:black"></span></span></b></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><span style="font-size:10pt;color:black"><font face="verdana, sans-serif"> </font></span></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);text-align:center"><font style="font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><span style="color:black">LOCATION:<br></span><font size="4" style="font-weight:bold"><span style="color:black">Join Zoom Meeting -  </span></font></font><a href="https://sdsu.zoom.us/j/91071174391" title="https://SDSU.zoom.us/j/91071174391" target="_blank"><font face="verdana, sans-serif" size="4"><b>https://SDSU.zoom.us/j/91071174391</b></font></a><font style="font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><font size="4"><font color="#000000"><br></font></font><span style="font-weight:bold"><font size="4"><br></font></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><span style="font-size:10pt;color:black"><font face="verdana, sans-serif"> </font></span></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black"></span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font face="verdana, sans-serif"><span style="color:black">SPEAKER/BIO:</span><span style="font-size:13.5pt;color:black"> </span></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);text-align:center"><font face="verdana, sans-serif" size="4"><b>Dr. </b></font><span style="color:rgb(0,0,0);text-align:left"><font face="verdana, sans-serif" size="4"><b>Margherita Capriotti</b></font></span><font face="verdana, sans-serif" size="4"><b>, Aerospace Engineering, San Diego State University </b></font>             </p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><font size="4" face="verdana, sans-serif"><b><b><span style="font-size:18pt"><span style="color:black"></span></span></b></b></font></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><b><font face="verdana, sans-serif"><span style="font-size:18pt"></span></font></b></p><p class="MsoNormal" align="center" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><span style="color:black"><font face="verdana, sans-serif"> </font></span></p><p class="MsoNormal" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><font size="2" face="verdana, sans-serif"><span style="color:black"><br></span></font></p><p class="MsoNormal" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><font size="2" face="verdana, sans-serif"><span style="color:black"><br></span></font></p><p class="MsoNormal" style="color:rgba(0,0,0,0.87);font-size:14px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;text-align:center"><span style="color:black"><font size="2" face="verdana, sans-serif">ABSTRACT:</font></span></p></div><div dir="ltr" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px"><font face="verdana, sans-serif"><br></font></div><div><div></div></div><div dir="ltr" style="color:rgba(0,0,0,0.87)"><font face="verdana, sans-serif" size="4"><span style="color:rgb(34,34,34)"><br></span></font></div><div dir="ltr" style="color:rgba(0,0,0,0.87)"><font face="verdana, sans-serif" size="4"><span style="color:rgb(0,0,0)">Non-Destructive Evaluation (NDE) aims at detecting defects and assessing the health status of materials and structures non-invasively. Among the numerous techniques, Ultrasonic Guided Waves (UGW) are very suitable for the inspection of large thin structures (e.g. composite aerospace panels, arterial vessels) due to their “guided” nature and their complex dispersive behaviour. UGW testing can greatly benefit from the ability to select the most sensitive mode-frequency combination and from quantitative information on the detected damage. In this talk, a hybrid computational model to predict guided wave scattering in complex structures will be described: a Semi-Analytical Finite Element (SAFE) solution for the “global” region is coupled to a full FE approach for the “local” one, to efficiently extract wave scattering spectra. Two case studies (2D and 3D) will be presented, together with their experimental applications and the potential of expanding to a variety of fields.<br></span><span style="color:rgb(34,34,34)"><br></span><span style="color:rgb(0,0,0)">Bio: Margherita Capriotti received her Ph.D. in Structural Engineering from University of California San Diego in 2019, pursuing research in the Experimental Mechanics & NDE Lab. She previously graduated with her B.S. and M.S. in Mechanical Engineering at the University of Parma (Italy). After Postdoctoral Research at Mayo Clinic in the Department of Radiology, she joined San Diego State University as an Assistant Professor in the Aerospace Engineering Department. Her research focuses on non-destructive evaluation techniques, investigating thermal and elastic wave propagation for structural assessment, combining computational and experimental research. She works on the development of global-local models for elastic wave scattering and on guided ultrasonic waves and infrared thermography techniques for defect detection and characterization of a variety of materials.</span></font><font face="verdana, sans-serif" size="4"><span style="color:rgb(34,34,34)"> </span><span style="color:rgb(34,34,34)">  </span></font><span style="font-family:"Times New Roman",serif;color:rgb(34,34,34)"> </span><font face="verdana, sans-serif" size="4"> </font><font face="verdana, sans-serif" size="4"><br></font><font face="verdana, sans-serif"><br></font></div><div dir="ltr" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px"><font size="4" face="verdana, sans-serif"> <br></font></div><div dir="ltr" style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px"><font size="4" face="verdana, sans-serif"><br></font><p class="MsoNormal" style="margin:0in 5.2pt 0.0001pt 0in;line-height:13.91px"><font face="verdana, sans-serif"><br></font></p><font size="4" face="verdana, sans-serif"></font></div><font face="verdana, sans-serif" style="font-size:14px"><font size="4"><font color="#000000">Host:</font><font color="rgba(0, 0, 0, 0.870588235294118)"> </font><font color="#000000">Satchi Venkataraman</font></font><br></font><div style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px"><font size="4" face="verdana, sans-serif"><br></font></div><div style="color:rgba(0,0,0,0.87);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px"><p class="MsoNormal"><font face="verdana, sans-serif" size="4"><span style="font-weight:bold">Note:</span><span style="font-weight:bold"> </span>Videos of previous colloquium talks<span style="text-align:center"> can be seen on the CSRC website in the colloquium archive section or on the </span><a href="https://www.youtube.com/channel/UCN0ZEztlmyDqG2pm-Rle_Eg/feed" rel="nofollow" style="color:rgb(26,115,232);text-align:center" target="_blank">CSRC YouTube page here</a><span style="text-align:center">.</span></font></p><p class="MsoNormal"><font face="verdana, sans-serif" size="4"><span style="text-align:center"><br></span></font></p><p class="MsoNormal"><font face="verdana, sans-serif" size="4"><span style="text-align:center"><br></span></font></p></div></div></div></div></div><div></div><div></div></div><div><div></div></div><div><div><div style="display:inline-block"></div><div></div></div></div>

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