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2010•北京理工大学学报：英文版Requires access

Dynamic Shear Stress Measurements of PMMA

Fenglei Huang

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Abstract

In this paper,experiments of one-dimensional plane plate impact on polymethylmethacrylate(PMMA) targets are conducted,in which dynamic transverse stresses induced in the targets are measured using a new type of manganin piezoresistive stress gauge having 50 Ω low-pressure narrow grid-like foil.It is shown that this new instrument can improve measurement accuracy remarkably by reducing the so-called strain effect.Moreover,relationship between shear stress and longitudinal stress within a certain range of the latter is obtained.

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What this paper is about

In this paper,experiments of one-dimensional plane plate impact on polymethylmethacrylate(PMMA) targets are conducted,in which dynamic transverse stresses induced in the targets are measured using a new type of manganin piezoresistive stress gauge having 50 Ω low-pressure narrow grid-like foil.It is shown that this new instrument can improve measurement accuracy remarkably by reducing the so-called strain effect.Moreover,relationship between shear stress and longitudinal stress within a certain range of the latter is obtained.

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Available abstract

In this paper,experiments of one-dimensional plane plate impact on polymethylmethacrylate(PMMA) targets are conducted,in which dynamic transverse stresses induced in the targets are measured using a new type of manganin piezoresistive stress gauge having 50 Ω low-pressure narrow grid-like foil.It is shown that this new instrument can improve measurement accuracy remarkably by reducing the so-called strain effect.Moreover,relationship between shear stress and longitudinal stress within a certain range of the latter is obtained.

Key concepts: Manganin, Piezoresistive effect, Materials science, Shear stress, Stress (linguistics), Transverse plane, Shear (geology), Transverse shear

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