Home » Volume 32, 2017 » Issue No. 1
Evaluation of the in-plane shear strength of paper measured by tensile-loaded shear test
Hiroshi Yoshihara and Masahiro Yoshinobu
The in-plane shear strength (IPSS) of copy paper, filter paper, and sack paper was obtained from a tensile-loaded shear (TLS) test. Two circular holes were cut on the axial centreline of the specimen, and two slits were cut asymmetrically to each other. Shear stress was induced in the region between the hole edges by applying a tensile load. The diameter of the circular hole (2R) and distance between the hole edges (L) was varied, and the influence of the test condition on the IPSS value was investigated. The IPSS obtained from the TLS test was compared with that obtained from a 35° off-axis tension (OAT) test. The IPSS values obtained from the TLS tests decreased as the 2R and L values increased. To reduce the effects of the 2R and L values, the “zero IPSS” was defined as that obtained by extrapolating the 2R and L values to zero. For the copy paper and sack paper, it was feasible that the zero IPSS values might be close to the IPSS values obtained from the 35° OAT tests. In contrast, the zero IPSS value of filter paper was considerably larger than that obtained from the 35° OAT test.
Engineering purpose, In-plane shear strength (IPSS), Tensile-loaded shear (TLS) test, Zero IPSS
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Nordic Pulp & Paper Research Journal (NPPRJ) is an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents, pulp and paper and including new fiber-based materials, recovery and by-products from pulping processes, bio-refining and energy issues. Articles meeting required scientific standards are accepted from any continent.
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ISSN: 0283-2631