In this work, the effect of temperature exposure on the strength of resistance welded joints is analysed. Glass fibre reinforced polyphenylene sulphide (GF/PPS) adherends were joined using the resistance welding technique, using a stainless steel mesh as the heating element. Single lap shear tests were performed at temperatures ranging between −50 °C and 150 °C to evaluate the strength of the welded joints. The results showed that the lap shear strength decreased with increasing temperature, except for the region between 50 °C and 90 °C where it remained constant. Fractography analysis revealed that the main failure mechanism was glass fibre/matrix debonding and the connection between the mesh and the matrix was not the weakest link at the interface of the joint at any temperatures under study. The fibre/matrix interfacial strength and the stress distribution at the joint overlap were identified as the main factors influencing the behaviour of lap shear strength with temperature.

在这项工作中，分析了温度暴露对电阻焊接接头强度的影响。使用不锈钢网作为加热元件，采用电阻焊接技术将玻璃纤维增​​强的聚苯硫醚（GF / PPS）粘附体连接起来。在-50°C至150°C的温度范围内进行单搭接剪切测试，以评估焊接接头的强度。结果表明，搭接剪切强度随温度升高而降低，除了在50°C和90°C之间保持恒定的区域外。断口分析表明，在任何研究温度下，主要的破坏机理都是玻璃纤维/基体脱胶，而网孔与基体之间的连接并不是接头界面的最薄弱环节。