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Hexagonal honeycombs with meso-metric cell size show excellent load bearing and energy absorption potential, which make them attractive in many applications. However, owing to their bend-dominated structure, honeycombs are susceptible to deformation localization. The purpose of this study is to provide insight about shear band propagation in struts of 3D-printed honeycombs and its relation to the achieved macroscopic mechanical behavior.

Hexagonal honeycombs and unit cell models are 3D-printed by fused deposition modeling (FDM). The samples are exposed to compression loading and digital image correlation technique and finite element analyses are incorporated.

It is found that the strain contours, which are obtained by finite element, are in agreement with experimental measurements made by DIC. In addition, three stages of shear band propagation in struts of 3D-printed honeycombs are illustrated. Then the correlation between shear band propagation stages and the achieved macroscopic mechanical responses is discussed in detail.

For the first time, a hierarchical activation of different modes of shear band propagation in struts of a 3D-printed honeycomb is reported. This information can be of use for designing a new generation of honeycombs with tailor-made localization and energy absorption potential.

Crete, an exquisite island, is located between Europe, Asia and Africa, and in the north, is it surrounded by the Cretan Sea and in the south, by the Libyan Sea. It has become known as one of the most alluring tourist destinations in Europe. This is attributed to its geographical location, extraordinary flora and fauna, a unique natural phenomenon, such as the Gorge of Samaria, and its rich historical monuments. The archaeological sites in Crete (Knossos palace) are worldwide known and can be visited along with the famous Byzantine monuments. As it is understood, such churches and their artifacts mainly appeal to visitors with particular religious interests. At the same time, for the modern tourist who is interested beyond the usual attractions, there are also developed traditional settlements, the Sustainable tourism and Ecotourism, traditional cultural events and feasts, as well as exhibitions of popular art. Regarding the economy, over the last decade, an important growth in agriculture (the climate encourages a lot of bio‐cultures), industry and finally tourism has taken place. However, a more general growth is also to be seen in other economic sectors (manufacture, trade etc.) that benefit from the increase in the number of consumers annually, due to the surge in tourism. This radiograph of the island of Crete demonstrates all the natural and cultural elements that are impressive and rare within one area, and which, if exploited correctly, may create other tourist models based on natural and cultural resources.