نتایج جستجو برای: polymeric foam
تعداد نتایج: 38659 فیلتر نتایج به سال:
This study aims to obtain the best design and material for horseshoes. The research method used is experimental target design. was conducted in Medan most of experiments were at USU University Medan. results this are: it known that horse shoes will be better if they are made using polymeric foam reinforced with glass fiber. Furthermore, found other advantages horseshoe fiberglass when compared ...
this investigation presents the effect of various parameters on foam stability and its rheological properties. the underlying idea of this experiment is generating of drilling foam with uniform bubbles. the main problem of foam using is controlling its stability during field application. the most important parameters which cause instability in foam are gravity drainage, gas diffusion and bubble...
The annular foam breaker is one which uses the vacuum and shear force generated by the Coanda effect to break foam. Its effectiveness in destroying drilling foam has been test in wellbore flow simulation loop experimental stand. Experimental results showed that the operating pressure of the annular foam breaker should be larger than 0.6MPa and the stabilizers concentration of the foam drilling ...
Anisotropic polymer foams have been prepared, which exhibit a Poisson's ratio exceeding 1, and ratios of longitudinal to transverse stiffness exceeding 50. The foams are as much as 20 times stiffer in the longitudinal direction than the foams from which they were derived. The transformation process involved applying a uniaxial stress sufficient to produce 25% to 45% axial strain to open-cell po...
All-polymer syntactic foams are studied under large strain cyclic and monotonic tensile loading in order to reveal their stress-strain behaviour, recoverability, strength, elongation at break. The foam study here consists of hollow thermoplastic microspheres (HTMs) two distinct grades (551 920), with distributions mean-wall thicknesses diameters, embedded inside a polyurethane matrix various vo...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید