3、··················10六、纯弯曲梁正应力实验··························································12七、弯扭组合变形时的主应力测定实验··································15八、压杆稳定实验······································································18 一、拉伸实验报告标准答案 实验结果及数据处理:例:(一)低碳钢试件 强度指标: P