在abaqus分析碰撞问题时，接触选择的是surface to surface，在Edit History Output Request选取接触力和接触面积时出现对话框，为以下文字：
Contact history output has been requested in an Explicit analysis for a domain other than a set, a general contact surface, an interaction, or an assembled fastener set.
Change the domain or remove the contact output variable:
CFNM, CFN1, CFN2, CFN3
无法选择接触力和接触面积，求大神解答
另外，general contact 和 surface to surface 有何区别？ 求大神解答
Contact history output has been requested in an Explicit analysis for a domain other than a set, a general contact surface, an interaction, or an assembled fastener set.
Change the domain or remove the contact output variable:
CFNM, CFN1, CFN2, CFN3
无法选择接触力和接触面积，求大神解答
另外，general contact 和 surface to surface 有何区别？ 求大神解答
