Dynamic fracture toughness of polyurethane foam
نویسندگان
چکیده
منابع مشابه
Anisotropic polyurethane foam
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...
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ژورنال
عنوان ژورنال: Polymer Testing
سال: 2008
ISSN: 0142-9418
DOI: 10.1016/j.polymertesting.2008.08.006