Testing composite-to-metal tubular lap joints
Procedures were developed to fabricate, nondestructively evaluate, and mechanically test composite-to-metal tubular joints. The axially loaded tubular lap joint specimen consisted of two metal tubes bonded within each end of a fiberglass composite tube. Joint specimens with both tapered and untapered aluminum adherends and a plain weave E-glass/epoxy composite were tested in tension, compression, and flexure. Other specimens with tapered and untapered steel adherends and a triaxially reinforced E-glass/epoxy composite were tested in tension and compression. Test results include joint strength and failure mode data. A finite element analysis of the axially loaded joints explains the effect of adherend geometry and material properties on measured joint strength. The flexural specimen was also analyzed; calculated surface strains are in good agreement with measured values, and joint failure occurs in the region of calculated peak peel stress.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 10105220
- Report Number(s):
- SAND-93-0018C; CONF-9311124-1; ON: DE94003225; BR: GB0103012
- Resource Relation:
- Conference: American Society for Testing Materials (ASTM) symposium on bolted and bonded joints in composite materials,Ft. Worth, TX (United States),16-17 Nov 1993; Other Information: PBD: 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Single-cycle and fatigue strengths of adhesively bonded lap joints
Increasing the Strength of Adhesively Bonded Joints by Tapering the Adherends