Predicted stiffness loss due to delamination in filament wound composite cylinders

Technical Report · Thu Feb 01 04:00:00 EST 1990

OSTI ID:5360289

Zocher, M A; Allen, D H ^[1]; Groves, S E ^[2]

---

1. Texas A and M Univ., College Station, TX (United States). Dept. of Aerospace Engineering
2. Lawrence Livermore National Lab., CA (United States)

Three dimensional finite element analysis is used in conducting several case studies on the effect of delamination on the structural properties of various two-ply composite cylinders loaded in axial tension. In all cases, the effect of the damage is quantified through a reduction in axial stiffness of the cylinder. Two different crack geometries (circumferential and axial) and several different layups are considered. The results presented include stiffness, compliance, and energy release rate (ERR) as functions of crack length. 10 refs., 15 figs.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5360289
• Report Number(s): UCRL-CR-106325; ON: DE91017440
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CARBON
COMPOSITE MATERIALS
COMPUTER CODES
CRACK PROPAGATION
CYLINDERS
E CODES
ELEMENTAL MINERALS
ELEMENTS
EPOXIDES
FINITE ELEMENT METHOD
FORTRAN
GRAPHITE
MATERIALS
MINERALS
NONMETALS
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PROGRAMMING LANGUAGES