SAMPE Journal -September/October 2011 - 10
reach zero after 22 days, in agreement with the data in Figure 7. Both tack calculation methods show that the prepreg retains some stickiness after the 14 day tack-life specified by the manufacturer. Figure 9, however, provides additional insight, showing that with even very limited room temperature aging prepreg tack is dramatically reduced. Laminate Characterization Cured laminates were scanned with nondestructive ultrasound testing, then examined for thickness, microstructure, and mechanical properties. All test samples were taken from the center of the laminate where void content is likely to be largest. Ultrasound Scans Ultrasonic C-scan images were generated for each laminate. A 2.25 MHz transducer was used and scans were performed in the reflected mode in a water tank. The color scale on the images represents the reflected signal intensity. For the images in Figure 10 green represents a reflected signal of approximately 90%, yellow 50% and red 10%. All equipment settings were kept the same for all scans, so changes in color indicate changes in laminate quality (void content, compaction). C-scan images show a decrease in reflected signal with increasing out-time, signifying a decrease in laminate quality. The green circles that appear in later scans are a result of air bubbles that formed at surface defects. The stated
Figure 9. Energy of separation calculated for the tensile portion of the tack test until full separation of prepreg plies. out-life of the material used in this study is 21 days, and it is clear from ultrasound scans that laminate quality begins to decrease after this period (at day 22 in autoclave samples and day 28 in VBO laminates). Thickness Measurements Thickness of laminates was measured at the center of each panel. The thickness of the sample was taken to be an indication of laminate compaction. Consistent with ultrasound scans, thickness measurements show that compaction level begins to decrease for autoclave samples after 22 days and for VBO samples after 28 days. VBO samples
KIT CUTTING
Laser and Knife Cutting Systems Environmentally Controlled Processing Composite Supply Services
TEXAS • VERMONT
802-223-4055 www.cadcut.com • info@cadcut.com ISO 9001: 2008 / AS9100 Certified
10 SAMPE Journal, Volume 47, No. 5, September/October 2011
http://www.cadcut.com
http://www.matec.com
http://www.matec.com
http://www.cadcut.com
SAMPE Journal -September/October 2011
Table of Contents for the Digital Edition of SAMPE Journal -September/October 2011
SAMPE Journal - September/October 2011
Table of Contents
President’s Message
Technical Director’s Corner
Out-Time Effects on VBO (Vacuum Bag Only) Prepreg and Laminate Properties
Corporate Partners
SAMPE Tech 2011 Conference
SAMPE Tech 2011 Exhibition
Europe News & Views
SAMPE Europe’s SETEC 2011, Leiden
SAMPE Europe’s SEICO 2012, Paris
SAMPE China 2011
12th Japan International SAMPE Symposium and Exhibition – JISSE-12
SAMPE Books & CD’s Order Form
SAMPE Proceedings
Welcome SAMPE’s Newest Members
The SAMPE Foundation
Adhesive Characterization Using NIAR-Modified KGR Extensometer
Industry News
SAMPE LinkedIn Communities
SAMPE 2012 Call for Papers
SAMPE 2012 Exhibition
Materials & Products
SAMPE Asia 2012|Kuala Lumpur, Malaysia
SAMPE Materials Forecast Forum: Final Report
SAMPE Tech 2012 Call for Papers
SAMPE Journal Editorial Calender
Advertiser’s Index
Resource Center
Membership Application
Industry Events Calendar
Chapter Meetings Dates and Contacts
SAMPE Journal -September/October 2011 - SAMPE Journal - September/October 2011
SAMPE Journal -September/October 2011 - Cover2
SAMPE Journal -September/October 2011 - Table of Contents
SAMPE Journal -September/October 2011 - President’s Message
SAMPE Journal -September/October 2011 - 3
SAMPE Journal -September/October 2011 - 4
SAMPE Journal -September/October 2011 - Technical Director’s Corner
SAMPE Journal -September/October 2011 - Out-Time Effects on VBO (Vacuum Bag Only) Prepreg and Laminate Properties
SAMPE Journal -September/October 2011 - 7
SAMPE Journal -September/October 2011 - 8
SAMPE Journal -September/October 2011 - 9
SAMPE Journal -September/October 2011 - 10
SAMPE Journal -September/October 2011 - 11
SAMPE Journal -September/October 2011 - 12
SAMPE Journal -September/October 2011 - 13
SAMPE Journal -September/October 2011 - 14
SAMPE Journal -September/October 2011 - Corporate Partners
SAMPE Journal -September/October 2011 - SAMPE Tech 2011 Conference
SAMPE Journal -September/October 2011 - SAMPE Tech 2011 Exhibition
SAMPE Journal -September/October 2011 - Europe News & Views
SAMPE Journal -September/October 2011 - 19
SAMPE Journal -September/October 2011 - SAMPE Europe’s SETEC 2011, Leiden
SAMPE Journal -September/October 2011 - 21
SAMPE Journal -September/October 2011 - SAMPE Europe’s SEICO 2012, Paris
SAMPE Journal -September/October 2011 - 23
SAMPE Journal -September/October 2011 - SAMPE China 2011
SAMPE Journal -September/October 2011 - 25
SAMPE Journal -September/October 2011 - 12th Japan International SAMPE Symposium and Exhibition – JISSE-12
SAMPE Journal -September/October 2011 - SAMPE Books & CD’s Order Form
SAMPE Journal -September/October 2011 - SAMPE Proceedings
SAMPE Journal -September/October 2011 - 29
SAMPE Journal -September/October 2011 - Welcome SAMPE’s Newest Members
SAMPE Journal -September/October 2011 - 31
SAMPE Journal -September/October 2011 - 32
SAMPE Journal -September/October 2011 - 33
SAMPE Journal -September/October 2011 - The SAMPE Foundation
SAMPE Journal -September/October 2011 - 35
SAMPE Journal -September/October 2011 - 36
SAMPE Journal -September/October 2011 - Adhesive Characterization Using NIAR-Modified KGR Extensometer
SAMPE Journal -September/October 2011 - 38
SAMPE Journal -September/October 2011 - 39
SAMPE Journal -September/October 2011 - 40
SAMPE Journal -September/October 2011 - 41
SAMPE Journal -September/October 2011 - 42
SAMPE Journal -September/October 2011 - 43
SAMPE Journal -September/October 2011 - 44
SAMPE Journal -September/October 2011 - 45
SAMPE Journal -September/October 2011 - Industry News
SAMPE Journal -September/October 2011 - 47
SAMPE Journal -September/October 2011 - 48
SAMPE Journal -September/October 2011 - SAMPE LinkedIn Communities
SAMPE Journal -September/October 2011 - SAMPE 2012 Call for Papers
SAMPE Journal -September/October 2011 - SAMPE 2012 Exhibition
SAMPE Journal -September/October 2011 - Materials & Products
SAMPE Journal -September/October 2011 - 53
SAMPE Journal -September/October 2011 - SAMPE Asia 2012|Kuala Lumpur, Malaysia
SAMPE Journal -September/October 2011 - 55
SAMPE Journal -September/October 2011 - SAMPE Materials Forecast Forum: Final Report
SAMPE Journal -September/October 2011 - 57
SAMPE Journal -September/October 2011 - 58
SAMPE Journal -September/October 2011 - 59
SAMPE Journal -September/October 2011 - 60
SAMPE Journal -September/October 2011 - 61
SAMPE Journal -September/October 2011 - 62
SAMPE Journal -September/October 2011 - SAMPE Tech 2012 Call for Papers
SAMPE Journal -September/October 2011 - SAMPE Journal Editorial Calender
SAMPE Journal -September/October 2011 - 65
SAMPE Journal -September/October 2011 - Advertiser’s Index
SAMPE Journal -September/October 2011 - 67
SAMPE Journal -September/October 2011 - Resource Center
SAMPE Journal -September/October 2011 - 69
SAMPE Journal -September/October 2011 - 70
SAMPE Journal -September/October 2011 - 71
SAMPE Journal -September/October 2011 - 72
SAMPE Journal -September/October 2011 - 73
SAMPE Journal -September/October 2011 - 74
SAMPE Journal -September/October 2011 - Membership Application
SAMPE Journal -September/October 2011 - Chapter Meetings Dates and Contacts
SAMPE Journal -September/October 2011 - Cover3
SAMPE Journal -September/October 2011 - Cover4
https://www.nxtbook.com/nxtbooks/sampe/journal_20240506
https://www.nxtbook.com/nxtbooks/sampe/journal_20240304
https://www.nxtbook.com/nxtbooks/sampe/journal_20240102
https://www.nxtbook.com/nxtbooks/sampe/journal_20231112
https://www.nxtbook.com/nxtbooks/sampe/journal_20230910
https://www.nxtbook.com/nxtbooks/sampe/journal_20230708
https://www.nxtbook.com/nxtbooks/sampe/journal_20230506
https://www.nxtbook.com/nxtbooks/sampe/journal_20230304
https://www.nxtbook.com/nxtbooks/sampe/journal_20230102
https://www.nxtbook.com/nxtbooks/sampe/journal_20221112
https://www.nxtbook.com/nxtbooks/sampe/journal_20220910
https://www.nxtbook.com/nxtbooks/sampe/journal_20220708
https://www.nxtbook.com/nxtbooks/sampe/journal_20220506
https://www.nxtbook.com/nxtbooks/sampe/journal_20220304
https://www.nxtbook.com/nxtbooks/sampe/journal_20220102
https://www.nxtbook.com/nxtbooks/sampe/journal_20211112
https://www.nxtbook.com/nxtbooks/sampe/journal_20210910
https://www.nxtbook.com/nxtbooks/sampe/journal_20210708
https://www.nxtbook.com/nxtbooks/sampe/journal_20210506
https://www.nxtbook.com/nxtbooks/sampe/journal_20210304
https://www.nxtbook.com/nxtbooks/sampe/journal_20210102
https://www.nxtbook.com/nxtbooks/sampe/journal_20201112
https://www.nxtbook.com/nxtbooks/sampe/journal_20200910
https://www.nxtbook.com/nxtbooks/sampe/journal_20200708
https://www.nxtbook.com/nxtbooks/sampe/journal_20200506
https://www.nxtbook.com/nxtbooks/sampe/journal_20200304
https://www.nxtbook.com/nxtbooks/sampe/journal_20200102
https://www.nxtbook.com/nxtbooks/sampe/journal_20191112
https://www.nxtbook.com/nxtbooks/sampe/journal_20190910
https://www.nxtbook.com/nxtbooks/sampe/journal_20190708
https://www.nxtbook.com/nxtbooks/sampe/journal_20190506
https://www.nxtbook.com/nxtbooks/sampe/journal_20190304
https://www.nxtbook.com/nxtbooks/sampe/journal_20190102
https://www.nxtbook.com/nxtbooks/sampe/journal_20181112
https://www.nxtbook.com/nxtbooks/sampe/journal_20180910
https://www.nxtbook.com/nxtbooks/sampe/journal_20180708
https://www.nxtbook.com/nxtbooks/sampe/journal_20180506
https://www.nxtbook.com/nxtbooks/sampe/journal_20180304
https://www.nxtbook.com/nxtbooks/sampe/journal_20180102
https://www.nxtbook.com/nxtbooks/sampe/journal_20171112
https://www.nxtbook.com/nxtbooks/sampe/journal_20170910
https://www.nxtbook.com/nxtbooks/sampe/journal_20170708
https://www.nxtbook.com/nxtbooks/sampe/journal_20170506
https://www.nxtbook.com/nxtbooks/sampe/journal_20170304
https://www.nxtbook.com/nxtbooks/sampe/journal_20170102
https://www.nxtbook.com/nxtbooks/sampe/journal_20161112
https://www.nxtbook.com/nxtbooks/sampe/journal_20160910
https://www.nxtbook.com/nxtbooks/sampe/journal_20160708
https://www.nxtbook.com/nxtbooks/sampe/journal_20160506
https://www.nxtbook.com/nxtbooks/sampe/journal_20160304
https://www.nxtbook.com/nxtbooks/sampe/journal_20160102
https://www.nxtbook.com/nxtbooks/sampe/journal_20151112
https://www.nxtbook.com/nxtbooks/sampe/journal_20150910
https://www.nxtbook.com/nxtbooks/sampe/journal_20150708
https://www.nxtbook.com/nxtbooks/sampe/journal_20150506
https://www.nxtbook.com/nxtbooks/sampe/journal_20150304
https://www.nxtbook.com/nxtbooks/sampe/journal_20150102
https://www.nxtbook.com/nxtbooks/sampe/journal_20141112
https://www.nxtbook.com/nxtbooks/sampe/journal_20140910
https://www.nxtbook.com/nxtbooks/sampe/journal_20140708
https://www.nxtbook.com/nxtbooks/sampe/journal_20140506
https://www.nxtbook.com/nxtbooks/sampe/journal_20140304
https://www.nxtbook.com/nxtbooks/sampe/journal_20140102
https://www.nxtbook.com/nxtbooks/sampe/journal_20131112
https://www.nxtbook.com/nxtbooks/sampe/journal_20130910
https://www.nxtbook.com/nxtbooks/sampe/journal_20130708
https://www.nxtbook.com/nxtbooks/sampe/journal_20130506
https://www.nxtbook.com/nxtbooks/sampe/journal_20130304
https://www.nxtbook.com/nxtbooks/sampe/journal_20130102
https://www.nxtbook.com/nxtbooks/sampe/journal_20121112
https://www.nxtbook.com/nxtbooks/sampe/journal_20120910
https://www.nxtbook.com/nxtbooks/sampe/journal_20120708
https://www.nxtbook.com/nxtbooks/sampe/journal_20120506
https://www.nxtbook.com/nxtbooks/sampe/journal_20120304
https://www.nxtbook.com/nxtbooks/sampe/journal_20120102
https://www.nxtbook.com/nxtbooks/sampe/journal_20111112
https://www.nxtbook.com/nxtbooks/sampe/journal_20110910
https://www.nxtbook.com/nxtbooks/sampe/journal_20110708
https://www.nxtbook.com/nxtbooks/sampe/journal_20110506
https://www.nxtbook.com/nxtbooks/sampe/journal_20110304
https://www.nxtbook.com/nxtbooks/sampe/journal_20110102
https://www.nxtbookmedia.com