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首页> 外文期刊>Journal of pulp and paper science >Out-of-Plane Shear of Paperboard under High Compressive Loads
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Out-of-Plane Shear of Paperboard under High Compressive Loads

机译：高压负荷下的纸板的平面外剪切

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In this paper, existing equipment for measuring out-of-plane shear in thin compliant materials was extended with anew clamp that enabled shear testing under high compressive loads. The equipment was applied for testing of a commercial paperboard under various uniaxial and biaxial loadings. The new setup proved to work satisfactorily. In out-of-plane shear testing under a constant compressive load, the paperboard material eventually reached a frictional type of behaviour, i.e. a constant shear load at constant normal load. At low compressive loads, this occurred after a peak in the shear stress-strain curve while, at high compressive loads, it was reached asymptotically without a peak load. The magnitude of the peak shear stress was shown to be a function of the plastic deformation in the thickness direction of the paperboard material. The elastic part of the deformation in compression showed a nonlinear behaviour that resembles that of other porous materials.
机译：在本文中，用固定材料的现有设备用固定材料进行平面外剪切，并用新夹具扩展了固定夹，该夹具在高压载荷下启用了剪切测试。 该设备用于在各种单轴和双轴载荷下测试商业纸板。 新设置被证明是令人满意的。 在恒定压缩负荷下的平面外剪切测试中，纸板材料最终达到了摩擦类型的行为，即在恒定正常载荷下恒定的剪切载荷。 在低压缩载荷下，这发生在剪切应力应变曲线峰值之后，而在高压载荷下，它在没有峰值载荷的情况下渐近到达。 峰剪切应力的大小显示是塑料变形在纸板材料的厚度方向上的函数。 压缩中变形的弹性部分显示出类似于其他多孔材料的非线性行为。

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