胶粘剂弹性模量对折曲胶接接头应力分布的影响
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摘要
通过ANSYS有限元软件建立了折曲胶接接头的弹塑性有限元模型,考察了胶粘剂的力学性能参数弹性模量对其应力分布的影响。研究结果表明:四种不同的胶粘剂,其弹性模量越大,胶层中各应力的峰值越大,搭接区被粘物剥离应力峰值逐渐呈现出上升的趋势;当胶粘剂弹性模量为50 MPa时,被粘物的各应力分量存在较大的应力尖角(应力集中现象)。
The elastic-plastic finite element model of flexural bonded joint was established by ANSYS finite element software,and the effect of mechanical property parameter,elastic modulus,on the stress distribution of the adhesive was studied. The research results showed that the greater the elastic modulus of four different adhesives,the greater the peak stress in the adhesive layer,and the higher the peak peeling stress in the overlap zone. When the elastic modulus of adhesive was 50 MPa,the stress component of adherend had larger stress sharp angle(stress concentration phenomenon).
The elastic-plastic finite element model of flexural bonded joint was established by ANSYS finite element software,and the effect of mechanical property parameter,elastic modulus,on the stress distribution of the adhesive was studied. The research results showed that the greater the elastic modulus of four different adhesives,the greater the peak stress in the adhesive layer,and the higher the peak peeling stress in the overlap zone. When the elastic modulus of adhesive was 50 MPa,the stress component of adherend had larger stress sharp angle(stress concentration phenomenon).
引文
[1]游敏,郑小玲.胶接强度分析及应用[M].武汉:华中科技大学出版社,2009.
[2]罗威,游敏,郑小玲,等.折曲胶接接头应力分布的数值分析[J].中国胶粘剂,2009,18(7):8-11.
[3]游敏,罗威,郑小玲,等.折曲长度对胶接接头应力分布影响的数值分析[J].材料导报,2010,24(S1):246-248.
[4]游敏,罗威,郑小玲,等.斜削对折曲胶接接头的应力分布影响[J].中国胶粘剂,2010,19(4):22-25.
[5]严沾谋,游敏,郑小玲,等.胶粘剂弹性模量对间隙接头应力和强度的影响[J].航空学报,2007(1):253-256.
[6]游敏,晏嘉陵,郑小玲,等.弹性模量对铝胶焊搭接接头应力分布的影响[J].航空材料学报,2009,29(3):98-101.
[7]游敏,李莹莹,余海洲,等.弹性模量对盘状结构固有频率及应力分布的影响[J].粘接,2017,38(5):17-19;30.
[8]TAIB A A,BOUKHILI R,ACHIOU S,et al.Bonded joints with composite adherends:Part I:Effect of specimen configuration,adhesive thickness,spew fillet and adherend stiffness on fracture[J].International Journal of Adhesion&Adhesives,2006(26):226-236.
[9]TAIB A A,BOUKHILI R,ACHIOU S,et al.Bonded joints with composite adherends:Part II:Finite element analysis of joggle lap joints[J].International Journal of Adhesion&Adhesives,2006,26(4):237-248.
[10]孙德新,游敏,余珊.同轴单搭接胶接接头力学性能的研究[J].弹性体,2008,18(1):18-21.
[2]罗威,游敏,郑小玲,等.折曲胶接接头应力分布的数值分析[J].中国胶粘剂,2009,18(7):8-11.
[3]游敏,罗威,郑小玲,等.折曲长度对胶接接头应力分布影响的数值分析[J].材料导报,2010,24(S1):246-248.
[4]游敏,罗威,郑小玲,等.斜削对折曲胶接接头的应力分布影响[J].中国胶粘剂,2010,19(4):22-25.
[5]严沾谋,游敏,郑小玲,等.胶粘剂弹性模量对间隙接头应力和强度的影响[J].航空学报,2007(1):253-256.
[6]游敏,晏嘉陵,郑小玲,等.弹性模量对铝胶焊搭接接头应力分布的影响[J].航空材料学报,2009,29(3):98-101.
[7]游敏,李莹莹,余海洲,等.弹性模量对盘状结构固有频率及应力分布的影响[J].粘接,2017,38(5):17-19;30.
[8]TAIB A A,BOUKHILI R,ACHIOU S,et al.Bonded joints with composite adherends:Part I:Effect of specimen configuration,adhesive thickness,spew fillet and adherend stiffness on fracture[J].International Journal of Adhesion&Adhesives,2006(26):226-236.
[9]TAIB A A,BOUKHILI R,ACHIOU S,et al.Bonded joints with composite adherends:Part II:Finite element analysis of joggle lap joints[J].International Journal of Adhesion&Adhesives,2006,26(4):237-248.
[10]孙德新,游敏,余珊.同轴单搭接胶接接头力学性能的研究[J].弹性体,2008,18(1):18-21.