Tubular lap joints for wind turbine applications

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6494563

Reedy, Jr, E D; Guess, T R

A combined analytical/experimental study of the strength of thick- walled, adhesively bonded PMMA-to-aluminum and E-glass/epoxy composite-to-aluminum tubular lap joints under axial load has been conducted. Test results include strength and failure mode data. Moreover, strain gages placed along the length of the outer tubular adherend characterize load transfer from one adherend to the other. The strain gage data indicate that load transfer is nonuniform and that the relatively compliant PMMA has the shorter load transfer length. Strains determined by a finite element analysis of the tested joints are in excellent agreement with those measured. Calculated bond stresses are highest in the region of observed failure, and extensive bond yielding is predicted in the E- glass/epoxy composite-to-aluminum joint prior to joint failure. 4 refs., 13 figs., 1 tab.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• Sponsoring Organization: DOE/CE
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6494563
• Report Number(s): SAND-90-1978C; CONF-910104-1; ON: DE91001341
• Resource Relation: Conference: 14. energy-sources technology conference and exhibition, Houston, TX (USA), 20-24 Jan 1991
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COMPOSITE MATERIALS
FAILURES
FATIGUE
JOINTS
STRESSES
WIND TURBINES
TESTING
A CODES
ALUMINIUM
COMPRESSION STRENGTH
DESIGN
EPOXIDES
FINITE ELEMENT METHOD
GLASS
HORIZONTAL AXIS TURBINES
LAP WELDS
RESINS
SHELLS
SURFACE TENSION
TENSILE PROPERTIES
TURBINE BLADES
VERTICAL AXIS TURBINES
COMPUTER CODES
ELEMENTS
MACHINERY
MATERIALS
MECHANICAL PROPERTIES
METALS
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
SURFACE PROPERTIES
TURBINES
TURBOMACHINERY
WELDED JOINTS
170602* - Wind Energy Engineering- Turbine Design & Operation
360103 - Metals & Alloys- Mechanical Properties
990200 - Mathematics & Computers
360603 - Materials- Properties