Mechanics of balsa (Ochroma pyramidale) wood
نویسندگان
چکیده
منابع مشابه
LS-DYNA Impact Simulation of Composite Sandwich Structures with Balsa Wood Core
The impact damage response of balsa core sandwich composite plates with S2-glass/ epoxy reinforced facesheets is evaluated by impacting them with a spherical steel projectile at single impact locations. The impact damage can significantly reduce the structural integrity and load bearing capacity of a composite structure. Under high velocity impact loading, laminated composites experience signif...
متن کاملPatterns of hydraulic architecture and water relations of two tropical canopy trees with contrasting leaf phenologies: Ochroma pyramidale and Pseudobombax septenatum.
Many authors have attempted to explain the adaptive response of tropical plants to drought based on studies of water relations at the leaf level. Little attention has been given to the role of the xylem system in the control of plant water requirements. To evaluate this role, we studied the hydraulic architecture and water relations parameters of two tropical canopy trees with contrasting leaf ...
متن کاملProtrusion pyramidale périanale
La protrusion pyramidale périanale est une entité d'individualisation récente, assez rare, touchant presque exclusivement le sexe féminin souvent en bas âge, d'origine congénitale, fonctionnelle ou associée au lichen scléroatrophique. Dans la première forme, la lésion serait due à une faiblesse constitutionnelle de la paroi périnéale, notamment du raphé médian, ou serait secondaire à une malfor...
متن کاملLightweight 3D cellular composites inspired by balsa.
Additive manufacturing technologies offer new ways to fabricate cellular materials with composite cell walls, mimicking the structure and mechanical properties of woods. However, materials limitations and a lack of design tools have confined the usefulness of 3D printed cellular materials. We develop new carbon fiber reinforced, epoxy inks for 3D printing which result in printed materials with ...
متن کاملA comparison of sap flow measurements and potometry in two tropical lowland tree species with contrasting wood properties.
We evaluated the performance of the Heat Dissipation Technique (HDT) to measure sap flow in whole trees by comparison with potometric water uptake. Two tropical lowland species, Ochroma lagopus (balsa), a pioneer species with light wood and Hyeronima alchorneoides (pilón), a late-successional species with hard wood were examined. Diurnal courses of sap flow measured with the HDT showed good agr...
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ژورنال
عنوان ژورنال: Mechanics of Materials
سال: 2015
ISSN: 0167-6636
DOI: 10.1016/j.mechmat.2015.01.014