TY - JOUR
T1 - Strength of composites with long-aligned fibers
T2 - Fiber-fiber and fiber-crack interaction
AU - Masud, Arif
AU - Zhang, Zhe
AU - Botsis, John
N1 - Funding Information:
This research was supported by the Air Force Office of Scientific Research under Grant number F49620-96-1-0467, project director Dr. Walter F. Jones.
PY - 1998/9
Y1 - 1998/9
N2 - This paper presents a finite element formulation of elasticity to model elastic fracture in composites with long aligned fibers. We have employed a B-bar type approach which is applicable to compressible as well as nearly incompressible material systems. An energy approach is undertaken to evaluate the stress intensity factor at the crack tip. The effects of strong intact bridging fibers, fibers ahead of the crack tip, and that of temperature variation on the reduction in stress intensity factor at the crack tip have been investigated. Various numerical results are presented to show fiber-fiber and fiber-crack interaction.
AB - This paper presents a finite element formulation of elasticity to model elastic fracture in composites with long aligned fibers. We have employed a B-bar type approach which is applicable to compressible as well as nearly incompressible material systems. An energy approach is undertaken to evaluate the stress intensity factor at the crack tip. The effects of strong intact bridging fibers, fibers ahead of the crack tip, and that of temperature variation on the reduction in stress intensity factor at the crack tip have been investigated. Various numerical results are presented to show fiber-fiber and fiber-crack interaction.
UR - http://www.scopus.com/inward/record.url?scp=0032320182&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032320182&partnerID=8YFLogxK
U2 - 10.1016/S1359-8368(98)00012-2
DO - 10.1016/S1359-8368(98)00012-2
M3 - Article
AN - SCOPUS:0032320182
SN - 1359-8368
VL - 29
SP - 577
EP - 588
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
IS - 5
ER -