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CALCULATION OF COMPRESSION STRENGTH OF ELBOW-RUBBER HOSE REINFORCED BY SPIRALED CORDS THREADS
Author(s): SHUAI Chang-geng, HE Lin
Pages: 230-
233,240
Year: 2008
Issue:
6
Journal: ENGINEERING MECHANICS
Keyword: 肘形胶管; 耐压强度; 应力分析; 缠绕; 帘线;
Abstract: 在肘形橡胶软管内压作用下的应力分析的基础上,根据其几何结构,推导出帘线缠绕增强肘形橡胶软管耐压强度计算公式,分析结果表明:帘线缠绕增强肘形橡胶软管弯管段爆破压力低于直管段爆破压力,因此其耐压强度只需根据弯管段爆破压力进行评估.它与帘线强度、层数、缠绕密度、缠绕角度有关,而且还与其几何结构有关,在弯管段最外侧最薄弱.试验结果表明:肘形橡胶软管耐压强度理论计算值与试验值很接近,理论推算爆破位置与试验结果相符,这说明肘形橡胶软管耐压强度理论计算公式的正确性.
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