Issue 14

Fr

attura ed Integri

tà Strutturale, 1

4 (2010); Notiz

iario

1. P Fol in loa pro

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ccessful dev omposites (I 281) and un following ar a: Jc testing; tee aims to d c and Gc. en techniqu d Composit crack growt t and analysis a: Essential tee aims to 2001 (ESIS Elsevier 20 reproducibl cibility in th a: Determina tee aims to d ique. A test orthogonal forces in tw ted and a sec area: tellani@polim tee aims to d le environme it different testing is due ccessful dev r delaminati ping test pro area: Short @polimi.it) tee aims to e 3586-2) to fa r determining dentification entation effec area: Dela ner@empa.c tee aims to laminates wh through-thic area: Dela anfield.ac.uk tee aims to e 15024) to hi t of accurate

elopment of SO 13586-2) der tension-t eas: Co-ordinator evelop a tes A protocol w e (ESIS Pub es, Elsevier h in the test. schemes un work of fract develop a p Publication 2 01) but in th e to warrant e results via r tion of Gc v evelop an alte protocol has cutting at a c o directions, ond is now u Environmen erieuropa.co evelop a test nts. The act test environm to commen elopment of on resistance tocols in the fibre com xtend the te ster rates (ci Kc and Gc and teatmen ts. mination o h) extend the te ere other fib kness (3D) mination o ) xtend the tes gher rates ( and reliable

standards for and of the ension fatigu : Francesco B t protocol to as develope lication 28, 2001). The Developme der considera ure; Co-ordi lane stress f 8, Chapter 2 e view of t standardisati ound-robin s ia Cutting; C rnative techn been develo onstant spee in the directi ndeway with al stress m) protocol to ivity started ents to be ce. standards fo of unidirec following are posites at chniques dev rca 1m/s). in bulk poly t of ‘pop-in’ f UD and chniques de re orientatio reinforceme f UD lam t developed circa 1m/s). test data and

slow rate K develoment o e loading (IS aldi (email: characterise d by the com Chapter 2, major limitin nt of the tes tion. nator: Marta racture test , Fracture M he committe on within IS tudies and ad o-ordinator: ique for the ped in which d (Eng Frac on of cutting in the comm cracking; determine th in 2010. The studied. An r slow rate K tional lamina as: high laodi eloped to de Such develop mers at highe failure, the m cross-ply veloped to d ns are typic nts. Round inates at for the deter The challe the treatme

c and Gc det f a test stan O 15850), t baldi@ing.un toughness i mittee mem Fracture M g factor has t method is Rink (email: for polymeri echanics Tes e, the result O. The com ditional exp Gordon Will determinatio a tool is used t Mech 76, (1 and transve ittee. Co-ordina e sensitivity test adopted initial ESIS T c and Gc det tes in mode ng rates; C termine Kc ment will bu r rates (ISO itigation of d laminates; etermine GI ally used. T -robins on high rates mination of nges include nt of kinetic

ermination in dard for the he committe ibs.it) n polymers w bers Hale an echanics Tes proved to b still underwa marta.rink@p c films. A ting Methods s produced b mittee is in erimental and iams (email: n of Gc in to to remove a 8) p.2711-27 rse to this dir tor: Leon of different will follow a C4 Protoco ermination in I (ISO 150 o-ordinator and Gc of sh ild upon th 17281). Tech ynamic effec Co-ordinato c via delami hese can inc various diffe , Co-ordina delamination the mitigat energy efect

polymers (I se properties e is currently

SO 13586-1) at high rate developing

and s of test

hich fail th d Ramsteine ting Method e the difficu y within the olimi.it) version of t for Polymer y this meth vestigating th theoretical c g.williams@i ugh, ductile thin layer o 30, 2009). G ection. One ardo Cas polymes to s fracture mec l has been d short fibre 24: 2000), t : Andrea ort fibre co e tecniques d nical issues ts and specim r: Andy B nation in UD lude cross-pl rent compo tor: Ian H resistance a ion of dyna s. A protoco

e LEFM vali r, based upo s for Polym lty to accura committee, w

dity n a ers tely ith

was and ntly the . ) ng a m a ned has ail: g in ach and ISO e is ail: low the ssed ture ail: s to ven een ail: test the by

he protocol s Adhesives od are curre e origins of ontributions mperial.ac.uk polymers usi f polymer fro c is determi round-robin tellani (em tress crackin hanics appro evelopment, composites ( he committe Pavan (em mposites at s eveloped by being addre en manufac runner (em composite y layups, wo sites have b orsfall (em t quasi-static mic effects, l was drafted

2. C Fol 135 cur

103