Tensile membrane resistance

Tensile membrane behavior requires continuous reinforcement steel to support in-plane stesses. Two-way slabs and flat slabs, with fixed or simple supports, can usually satisfy the requirements for tensile membrane resistance. Design with tensile membrane resistance is the same as for flexural resistance since the moment capacity of the section is used to determine ultimate resistance. Tensile membrane resistance at 8 degree rotation must be at least... 

Figure 5.2). Panels can be quite strong since this is a very efficient structural action however, end anchorage is extremely important to achieving significant capacity. Resistance to blast loads of more than 2-4 psi (14-28 kPa) will normally require tensile membrane response. 

Increases in water sorption are accompanied by decreases in electrical resistance and tensile strength, as might be expectedO ). Nafion membranes sorb even larger amounts of other solvents as well, particularly alcohols and other protic solvents 12-16). 

The flux of the membrane was improved due to the hydrophilic nature of MWCNT. Improvement in tensile strength and resistance against compaction was also observed, mainly due to the decrease in porosity and good interaction between PAN and MWCNT. 

The mechanical properties of the membrane are equally important, although in the scientific literature this aspect is largely imderrepresented. hi addition to tensile strength and elongation at break values, dimensional stability upon swelling, resistance to crack formation, and propagation also have to be considered. Creep of the polymer is likely to occur because the... 

FIGURE 4.8.42. A Tensile strength vs area of membrane reinforcement (taking the tensile strength of unreinforced membrane to be one). B Electric resistance vs area of membrane reinforcement (taking the electric resistance of unreinforced membrane to be one). In Leno weave, the vertical strands are double twisted and the horizontal strands are single twisted. (With permission from E.I. duPont de Nemours Co, Inc.)... 

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