机械制造与自动化
機械製造與自動化
궤계제조여자동화
JIANGSU MACHINE BUILDING & AUTOMATION
2015年
3期
36-38
,共3页
复合材料%螺栓连接%摩擦系数%应力分布%连接强度
複閤材料%螺栓連接%摩抆繫數%應力分佈%連接彊度
복합재료%라전련접%마찰계수%응력분포%련접강도
composites%bolted joints%friction coefficient%stress distribution%joint strength
建立了复合材料层合板单钉连接强度分析的三维模型，模型考虑了螺栓-孔接触面的摩擦效应。研究结果表明，在各个铺层中，随着摩擦系数的增大，周向应力和径向应力减小。螺栓-孔接触面摩擦系数对复合材料的拉压强度和剪切强度有较大影响，在一定范围内增加摩擦系数将会提高接头的极限破坏载荷。
建立瞭複閤材料層閤闆單釘連接彊度分析的三維模型，模型攷慮瞭螺栓-孔接觸麵的摩抆效應。研究結果錶明，在各箇鋪層中，隨著摩抆繫數的增大，週嚮應力和徑嚮應力減小。螺栓-孔接觸麵摩抆繫數對複閤材料的拉壓彊度和剪切彊度有較大影響，在一定範圍內增加摩抆繫數將會提高接頭的極限破壞載荷。
건립료복합재료층합판단정련접강도분석적삼유모형，모형고필료라전-공접촉면적마찰효응。연구결과표명，재각개포층중，수착마찰계수적증대，주향응력화경향응력감소。라전-공접촉면마찰계수대복합재료적랍압강도화전절강도유교대영향，재일정범위내증가마찰계수장회제고접두적겁한파배재하。
A three-dimensional(3D)finite element model of composite laminates in single bolt joint is built to investigate the effect of friction between bolt and hole on the joint strength. The research result shows that as the friction coefficient increases, the circumfer-ential stresses and radial stresses decrease in each ply. Therefore, tensile and shear strengths of the composite laminate joint are greatly influenced by the friction between the hole and bolt. Within a reasonable range, elevating the friction coefficient can increase the critical load capacity of laminates joint.
