Alann André

Flax Fiber-Reinforced Glued-Laminated Timber in Tension Perpendicular to the Grain: Experimental Study and Probabilistic Analysis

The weak mechanical properties of wood in tension perpendicular to the grain are often the origin of catastrophic brittle failure. In order to enhance the tension strength perpendicular to the grai ...

Finite Element Study of Delaminations in Notched Composites

The objective for this numerical study is to determine the delamination initiation and propagation in notched composite laminates under flexural loading. The commercial finite element package ABAQUS is used to carry out the investigation utilizing cohesive elements. This study addresses delamination as the only damage mechanism. The results from finite element analysis are compared to experimental results of four-point bending tests performed on notched laminates for validation.

An Experimental Study on the Strength of Out of Plane Loaded Composite Structures

More and more composite materials are used within primary load carrying aircraft structures. Examples are Boeing 787 and Airbus A350XWB where the composite content has increased up to 50–60 % by weight. With the aim to decrease manufacturing cost the structures are given a higher degree of integration and complexity. More integrated structures give fewer articles and fewer steps in the manufacturing chain. In many cases new innovative design solutions are a requirement to enable integrated structures.