【摘要】 采用简化模型和边界配置方法,对薄板点焊试件进行了断裂分析,计算了焊接周围裂纹Ⅰ、Ⅱ、Ⅲ型的应力强度因子。本方法具有计算量小,精度高的优点,适用于不同几何尺寸薄板点焊试样的断裂计算。更多还原

【Abstract】 The present paper described the fracture analysis on the spot welded specimen of steel sheet and calculation of model Ⅰ、Ⅱ and Ⅲ stress intensity factors for cracks around the nugget by implementing the simplified model and boundary collocation method. The new method has such advantages as minimum workload for computation and high precision. It applies for calculations of spot welded specimen of all sizes and dimensions.更多还原