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Analysis of strength properties of light-cured resin composites

机译:光固化树脂复合材料的强度性能分析

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Objectives: To determine and correlate the compressive and tensile strengths of resin composites, to acale their failure probability and to analyze their failure mode under combined state o stresses. Methods: Ten brands of composites were tested for compressive and diametral tensile strengths. A recently introduced device for testing of Pure shear stresses was modified to adapt to smaller specimens. Uniformity of pure shear stress distribution in the significant section was Verified by a photoelastic model. Loading specimens in pure shear up to failure determined their mode of fracture under combined state of Stresses.
机译:目的:确定并关联树脂复合材料的抗压强度和拉伸强度,以提高其破坏概率,并分析其在复合应力状态下的破坏模式。方法:测试了十个品牌的复合材料的抗压强度和径向拉伸强度。修改了最近推出的用于测试纯剪应力的设备,以适应较小的样本。通过光弹性模型验证了有效截面中纯剪切应力分布的均匀性。以纯剪切方式加载试样直至破坏,确定了在应力联合状态下的断裂模式。

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