COMBINED ACOUSTIC EMISSION AND X-RAY MICRO-TOMOGRAPHY APPROACH FOR STRUCTURAL HEALTH MONITORING OF WOOD-BASED STRUCTURES

Seif Eddine Hamdi (1) , Malick Diakhaté (2) , Rostand Moutou Pitti (1, 3)

1 IP - Institut Pascal
2 IRDL - Institut de Recherche Dupuy de Lôme
3 IP - Institut Pascal

Wood based-structures are very sensitive to the effects of climatic loadings such as temperature and hydric variations, during their service life. Therefore, mechanical properties modification due to these impacts leads to compromise the durability of timber structures. The present paper consists in investigating the cracks tip advance within tropical Pterocarpus soyauxii (Padouk) species, in order to improve their sustainability. This work gives a combination approach of the Acoustic Emission (AE) and X-ray Computed Tomography (X ray CT) techniques for their applications in wood structure health monitoring. The AE approaches of focus are the parametric and signal analysis which can be used to develop damage evaluation criteria. The X ray CT is used to internally investigate the damage opening and orientation at different lamella thicknesses to capture size effects.

Mots clés: Damage evaluation; Signal and Image analysis; Acoustic Emission; X-ray Computed Tomography; Wood material

Domaines: Matériaux composites et construction; Structures; Matériaux; Construction durable

Seif Eddine Hamdi, Malick Diakhaté, Rostand Moutou Pitti. COMBINED ACOUSTIC EMISSION AND X-RAY MICRO-TOMOGRAPHY APPROACH FOR STRUCTURAL HEALTH MONITORING OF WOOD-BASED STRUCTURES. 2018 World Conference on Timber Engineering (WCTE), Aug 2018, Seoul, South Korea. ⟨hal-01873986⟩