TY - JOUR
T1 - Tear strength characteristics of laminated envelope composites based on single edge notched film experiment
AU - Longbin, Liu
AU - Mingyun, Lv
AU - Houdi, Xiao
PY - 2014/9
Y1 - 2014/9
N2 - In order to analyze tear strength of laminated envelope reinforced by Kevlar-plain woven fabric, a new physical model is developed to calculate the initial single edge notched (SEN) shape. The arithmetical displacement method is proposed to calculate the stress distribution of the crack tip. Then three types of specimens are tested. It is found that the tear strength between the physical model and experiment tests is approximate, and the deviation is lower than 5%. When compared with the stress intensity factor, this model is more accurate and suitable, and the initial crack length ratio could even reach 0.60.
AB - In order to analyze tear strength of laminated envelope reinforced by Kevlar-plain woven fabric, a new physical model is developed to calculate the initial single edge notched (SEN) shape. The arithmetical displacement method is proposed to calculate the stress distribution of the crack tip. Then three types of specimens are tested. It is found that the tear strength between the physical model and experiment tests is approximate, and the deviation is lower than 5%. When compared with the stress intensity factor, this model is more accurate and suitable, and the initial crack length ratio could even reach 0.60.
KW - Computational modeling
KW - Laminated structures
KW - Stress intensity factor
KW - Tear strength
UR - https://www.scopus.com/pages/publications/84906096550
U2 - 10.1016/j.engfracmech.2014.04.026
DO - 10.1016/j.engfracmech.2014.04.026
M3 - 文章
AN - SCOPUS:84906096550
SN - 0013-7944
VL - 127
SP - 21
EP - 30
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
ER -