Nonlinear properties of high strength paperboards
Article Abstract:
Limited data on the nonlinear material properties of paperboards is a factor that has hampered solid mechanics research on paper structures. In particular, measurements of shear and z-directional properties have been difficult to obtain. Thus, nonlinear material response of paper laminates under simple loading conditions were studied along with data for various Poisson's ratios. The results showed that in-plane Poisson's ratios decreased while those that out-of-lane increased with the applied load.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1999
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A new method for the determination of the flexural modulus of spirally wound paper tubes
Article Abstract:
A new test technique for measuring the flexural modulus of paper tubes is given. The testing procedure can be done in a rigid frame apparatus under constant load or in a universal testing machine under increasing load. The data obtained are studied using an altered Euler-Bernoulli theory to consider nonbending deflection components that are derived by the three-point-bend test. Results show that the method obtains a better value of the flexural modulus than classical methods.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1992
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In situ measurement of the Young's modulus of an embedded inclusion by acoustic microscopy
Article Abstract:
The Young's modulus of alumina-silicate inclusions was measured and contrasted with that of alumina-silicate fibers to analyze the differences between their responses to applied loads. Findings revealed that the inclusions have a Young's modulus which is 40% lower than that of the fibers. The applicability of the V(z) method was illustrated for measuring the elastic characteristics over a microscopic area, even when the target material is an embedded inclusion.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1997
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