On the Selection of a Composite Material for Two-Wheeler Foot Bracket Failure Prevention through Simulation and Mathematical Modeling

A foot bracket is a metal panel bracket used to mount and support the footrest in two-wheeler systems.It holds the footrest in place while rigidly supporting it.In working conditions,this element has often been observed to fail when specific load-fluctuation conditions are established at its rear end.Appropriate materials therefore need to be identified to overcome such a recurring failure.To address these issues,the present study has been implemented with the specific objective to determine the response of selected Al6061-T6 and Al7075-T6 Hybrid Metal Matrix Composites(HMMC).The results,obtained using the ANSYS Software,show that the selected composites can withstand 636,962 N/m^(2)of maximum stress and 8.88×10^(−6)m of minimum displacement.These results are also compared with relevant mathematical models and it is concluded that the identified material combination provides the required improvement of structural stability that can withstand the load fluctuation on the foot bracket.

基于Ti中间层的SiC_(p)/6061-T6Al MMCs低功率激光-TIG复合焊接头组织与性能

以0.1 mm厚的Ti箔作中间夹层,使用低功率激光-TIG复合焊的方式对SiC_(p)/6061-T6Al MMCs进行焊接,并对接头的宏观形貌、显微组织、物相、电阻率、抗拉强度及断口形貌进行分析。结果表明:激光功率对焊缝的成形有着较大影响;Ti箔的加入基本抑制了焊缝中针状Al_(4)C_(3)的生成,并生成TiC增强相以及条状TiAl_(3);焊缝区为等轴晶组织,熔合区为柱状晶组织,热影响区组织变化不明显;随着激光功率的增加,接头的电阻率呈现出增加的趋势,并明显高于母材;在554 W时,接头的抗拉强度可达196.98 MPa,是母材强度的54.71%。接头断口中几乎没有气孔,韧窝中的第二相粒子以TiC为主,接头呈现出以脆性断裂为主的脆-韧性混合断裂特征。