TY - JOUR
T1 - Performance analysis of a carbon cloth/felt layer needled perform
AU - Ji, A. Lin
AU - Cui, Hong
AU - Li, He Jun
AU - Cheng, Wen
AU - Ji, Ling Ling
PY - 2011/4
Y1 - 2011/4
N2 - The structural characteristics of a carbon cloth/felt layer needled preform are investigated. X-Y direction tensile strength, Z direction peel-off stress, and the Naval Ordnance Laboratory (NOL) ring-integrated tensile strength were tested. The X-Y direction tensile strength decreased with the increase of needling density. The law of surface density of fiber felt affecting the Z direction stress is not obvious. Peel-off stress of a 3 K carbon cloth/felt needled preform is higher than that of 6 K and 12 K cloth/felt, and the peel-off stress of a diagonal carbon cloth/felt needled preform is better than that of a satin one. There are three different damage modes for the NOL-integrated tensile ring, namely complete rupture, incomplete rupture, and interlayer peel-off. For 3 K satin carbon cloth/felt needling preform, its NOL ring-integrated tensile strength is the lowest and only 3 MPa, and it shows complete rupture. For the 12 K satin carbon cloth/felt needled preform, the damage mode is interlayer peel-off, and for the 6 K satin carbon cloth/felt needled preform, the damage mode is incomplete rupture, and its integrated mechanical performance is excellent. NOL ring-integrated tensile strength is much higher than X-Y tensile intensity for the preforms made by same process.
AB - The structural characteristics of a carbon cloth/felt layer needled preform are investigated. X-Y direction tensile strength, Z direction peel-off stress, and the Naval Ordnance Laboratory (NOL) ring-integrated tensile strength were tested. The X-Y direction tensile strength decreased with the increase of needling density. The law of surface density of fiber felt affecting the Z direction stress is not obvious. Peel-off stress of a 3 K carbon cloth/felt needled preform is higher than that of 6 K and 12 K cloth/felt, and the peel-off stress of a diagonal carbon cloth/felt needled preform is better than that of a satin one. There are three different damage modes for the NOL-integrated tensile ring, namely complete rupture, incomplete rupture, and interlayer peel-off. For 3 K satin carbon cloth/felt needling preform, its NOL ring-integrated tensile strength is the lowest and only 3 MPa, and it shows complete rupture. For the 12 K satin carbon cloth/felt needled preform, the damage mode is interlayer peel-off, and for the 6 K satin carbon cloth/felt needled preform, the damage mode is incomplete rupture, and its integrated mechanical performance is excellent. NOL ring-integrated tensile strength is much higher than X-Y tensile intensity for the preforms made by same process.
KW - Integrated tensile strength of NOL ring
KW - Needling
KW - Preform
KW - X-Y direction tensile strength
KW - Z direction Peel-off stress
UR - http://www.scopus.com/inward/record.url?scp=79957633715&partnerID=8YFLogxK
U2 - 10.1016/S1872-5805(11)60070-X
DO - 10.1016/S1872-5805(11)60070-X
M3 - 文章
AN - SCOPUS:79957633715
SN - 2097-1605
VL - 26
SP - 109
EP - 116
JO - Xinxing Tan Cailiao/New Carbon Materials
JF - Xinxing Tan Cailiao/New Carbon Materials
IS - 2
ER -