Flexural rigidity

About: Flexural rigidity is a research topic. Over the lifetime, 3829 publications have been published within this topic receiving 56780 citations.

When the Bending Stiffness of Geosynthetic Reinforcement is Important

Abstract: A numerical simulation has been undertaken to model a layer of sand overlaying a layer of geosynthetic reinforcement and super soft clay. Details of the model and the modelling procedures are described and the influence of the bending stiffness (flexural rigidity) of the reinforcement on the bearing capacity of super soft clay is discussed. Factors affecting the reinforcement mechanisms of geosynthetic reinforcement of super soft clay are considered.

Flexural Stiffness of Thick Walled Composite Tubes

Abstract: Composite tubes have been used in many applications such as pipes, robot arms, drive shafts, electrical conduits, printing rollers, tube structures for sports equipment, rocket structures, satellite truss structures, landing gears for helicopters, and structural building members etc For thin wall tubes made of isotropic materials, the flexural stiffness is usually determined by using strength of material approach with the expression EI, where E is the material modulus and I the cross section inertia For thin walled composite tubes where many layers with different orientations are involved, one may tempt to use the same equation with E replaced by Ex to take care of the fiber orientations However this may not be correct Adding to this the increasing thickness of the cylinder, then the inaccuracy of the equation may be even more By using elasticity approach, an equation for the determination of the stiffness of thick composite cylinders was derived by previous researchers It was shown by experimental work that the equation based on elasticity provides more accurate results that that based on strength of materials approach This paper presents some behavior of the bending stiffness of thick walled composite tubes

The Prediction of the Flexural Rigidity of Sandwich Foam Mouldings

Abstract: Sandwich mouldings are made in a single operation using an injection moulding process developed by ICI Plastics Division (1). They comprise a thermoplastic outer skin encapsulating a core which may be foamed. This process can extend the use of plastics in load bearing applications but in order to do so mechanical properties information is required for the necessary feasibility studies and design procedures. For the majority of applications sandwich moulded components are either boxes or panels in which the area dimensions are much greater than the thickness dimensions. For this reason, the load bearing capability of the structure is generally restricted by excessive deflections in bending and the most important structural property is the flexural rigidity. The methods for predicting the flexural rigidity of sandwich mouldings examined in this paper incorporate practical variables of the process, namely degree of foaming and the ratio of amounts of core and skin material. The prediction methods also use known or measurable properties of solid thermoplastics and the results of recent work on the deformational properties of polymer foams (2). The measurement and prediction of the flexural rigidity has been discussed previously by Ogorkiewicz and Mucci (3) and Ogorkiewicz and Sayigh (4), but their work was restricted to