Publication

Static and Creep Behavior of Fiber-Polymer Composite Joints with 100% Joint Efficiency

Thomas Keller
2026

Abstract

To achieve 100% joint efficiency in fiber-polymer composite joints, the static behavior of three types of double-lap joints, including adhesively bonded, bolted and hybrid bonded/bolted joints, was experimentally investigated. A flexible acrylic adhesive was used for both adhesive and hybrid joints. The effect of the overlap length on the ultimate failure load was examined. The results showed that 100% joint efficiency can be achieved in both adhesive joints and hybrid joints with still reasonable overlap length. Moreover, creep experiments were conducted on adhesive and hybrid joints at different load levels. The results showed that creep in the adhesive layer was significantly reduced in the hybrid joints due to the presence of bolts.

Official source

https://infoscience.epfl.ch/entities/publication/d296835a-e40f-4fa5-9828-a75f03d7c6df

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Thomas Keller
2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d296835a-e40f-4fa5-9828-a75f03d7c6df

About this result

Related concepts (24)

Adhesive

Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation. The use of adhesives offers certain advantages over other binding techniques such as sewing, mechanical fastenings, or welding. These include the ability to bind different materials together, the more efficient distribution of stress across a joint, the cost-effectiveness of an easily mechanized process, and greater flexibility in design.

Creep (deformation)

In materials science, creep (sometimes called cold flow) is the tendency of a solid material to undergo slow deformation while subject to persistent mechanical stresses. It can occur as a result of long-term exposure to high levels of stress that are still below the yield strength of the material. Creep is more severe in materials that are subjected to heat for long periods and generally increase as they near their melting point. The rate of deformation is a function of the material's properties, exposure time, exposure temperature and the applied structural load.

Hybrid vehicle

A hybrid vehicle is one that uses two or more distinct types of power, such as submarines that use diesel when surfaced and batteries when submerged. Other means to store energy include pressurized fluid in hydraulic hybrids. Hybrid powertrains are designed to switch from one power source to another to maximize both fuel efficiency and energy efficiency. In hybrid electric vehicles, for instance, the electric motor is more efficient at producing torque, or turning power, while the combustion engine is better for maintaining high speed.

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Static and Creep Behavior of Fiber-Polymer Composite Joints with 100% Joint Efficiency

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