Stress Analysis and Strength of Joints Combining Adhesives With Bolts Subjected to Torsions

M. Yoneno, T. Sawa, Hidekazu Nishijima, M. Matsuo
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引用次数: 0

Abstract

The stress distributions in joints combining adhesives with bolts are analyzed by using axisymmetrical theory of elasticity as a three-body contact problem when torsion is applied to the joints. The joints consist of two hollow cylinders and they are fastened by a bolt and nut after being joined with an adhesive. When an external torsion is applied to combination joints, an increment / decrement of torsion occurs in the bolt. A method for estimating the variation of torsion in the bolt is proposed. In addition, using the interface stress distribution, a method for predicting strength of the combination joint is proposed. The torsional load produced in the bolt was measured using strain gauges. Strength of the combination joint was also measured. A fairly good agreement was seen between the analytical and the experimental results. It is shown that the increment of torsional load occurs in the bolt is small. It is found that the strength of the combination joints is greater than that of adhesive joints. It is also seen that the combination joint strength increases as the initial clamping force increases and that it is greater than that of bolted joints without adhesives.
胶粘剂与螺栓结合接头在扭转作用下的应力分析与强度
将轴对称弹性理论作为三体接触问题,分析了粘结剂与螺栓结合接头在施加扭转作用时的应力分布。接头由两个空心圆筒组成,用粘合剂连接后用螺栓和螺母紧固。当外部扭转作用于组合接头时,螺栓中出现扭转的增加/减少。提出了一种估算锚杆扭矩变化的方法。此外,提出了一种利用界面应力分布预测组合接头强度的方法。用应变片测量螺栓产生的扭转载荷。并测定了组合接头的强度。分析结果与实验结果吻合较好。结果表明,锚杆内发生的扭转载荷增量较小。结果表明,组合接头的强度大于粘结接头的强度。还可以看出,组合接头强度随初始夹紧力的增大而增大,且大于无胶粘剂的螺栓连接。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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