In this paper, the fatigue life of fiber-reinforced ceramic-matrix composites (CMCs) with different fiber preforms, i.e., unidirectional, cross-ply, 2D (two dimensional), 2.5D and 3D CMCs at room and elevated temperatures in air and oxidative environments, has been predicted using the micromechanics approach. An effective coefficient of the fiber volume fraction along the loading direction (ECF...

We examined the mechanical properties of Vicryl (polyglactin 910) mesh in vitro and assessed its use in vivo as a novel biomaterial to attach tendon to a hydroxyapatite-coated metal implant, the interface of which was augmented with autogenous bone and marrow graft. This was compared with tendon re-attachment using a compressive clamp device in an identical animal model. Two- and four-ply sleev...

This paper proposes a new search algorithm, denoted PN∗, for AND/OR tree search. The algorithm is based on proof-number (PN) search, a best-first search algorithm, proposed by Allis et al. [Artificial Intelligence 66 (1) (1994) 91–124], and on Korf’s RBFS algorithm [Artificial Intelligence 62 (1) (1993) 41–78]. PN∗ combines several existing ideas. It transforms a best-first PN-search algorithm ...

Tsai's Modulus, an invariant of the stiffness tensor Q , and unit circle failure criterion, a strain normalized envelope, can both be used in preliminary design. Modulus to predict elastic properties material while likely material. However, date influence these approaches on each other has not yet been established. In addition, predictions have compared with well-established criteria or experim...

Delamination is one of the most common failure modes in composite structures. In the case of in-plane compressional loading, delamination of a layered flat structure can cause a local buckling in delaminated area which subsequently affects the overall stiffness of the initial structure. This leads to an early failure of the overall structure. Moreover, with an increase in load, the delaminated ...

Pneumolysin (PLY) is an important virulence factor of Streptococcus pneumoniae. We examined the ability of three murine monoclonal antibodies (MAbs) to PLY (PLY-4, PLY-5, and PLY-7) to affect the course of pneumococcal pneumonia in mice. The intravenous administration of antibodies PLY-4 and PLY-7 protected the mice from the lethal effect of the purified toxin. Mice treated with PLY-4 before in...

wheel numeric and different versions of mobility numbers are important models for predicting the rolling resistance. in this study, data related to the rolling resistance of cross ply and radial ply tires were compared with the resultant values from several models. also, the preciseness of models in rolling resistance prediction was evaluated. for this purpose f test and 1-1 line method (p≥ 0.0...

“Tension-absorber” joints are bolted designed to absorb energy in a survivable crash landing, through an extended version of bearing failure. They have been proposed for use future transport aircraft narrow-body composite fuselages. Herein, the influence layup (percentage each ply orientation), stacking sequence (exact location ply) and loading rate, on absorption is examined. Quasi-static dyna...

Submit Manuscript | http://medcraveonline.com Abbreviations: AI, Artificial Intelligence; CPU, Central Processing Unit; Depth, The deepness of the calculation often given in ply as the sequence of moves calculated ahead; ECO, ECO codes is a classification system of chess openings. ECO abbreviates Encyclopaedia of Chess Openings code. E.g. see free online versions of the Encyclopaedia;7 FLOPs, F...

Abstract The stability behaviour of unsymmetrical laminated structures made fibre-reinforced plastics is significantly influenced by bending–extension coupling and the comparatively low transverse shear stiffnesses. aim this work to improve analytical analysis unsymmetrically structures. With discrete plate theory, can be reduced single plates. structure divided into individual segments, surrou...