It is emphasized in general that the design process at the conceptual stage is highly dependent on the designer’s individual skills and sense of aesthetics. As a result, a methodology for that process tends to be described as an intuitive manner. Th...
It is emphasized in general that the design process at the conceptual stage is highly dependent on the designer’s individual skills and sense of aesthetics. As a result, a methodology for that process tends to be described as an intuitive manner. There are also, however, objective aspects, such as rationality in terms of mechanics, that affect the subjective impression from an object. We consider that the intuitive design methodology can be reinterpreted as a systematic one if the relationship between the sensory- and the objective- aspect was revealed. In this article, we hypothesized that the human designer intuitively sees the distribution of load level, such as mechanical stress, on the object without analysis. Moreover, we proposed a concept of “expression in mechanics sense” perceived by the human designer. The term of expression is a metaphor of human facial one. This virtual expression is a bridge connecting the sensory- and objective-aspect in the design process. In the case of pottery cup, we showed some methodologies using the deep learning-based captioning in order to characterize the shape features and to associate with their mechanical rationalities. As a result, it was shown that the category score output by the caption generator might be available as a measure of the rationality of the shape in mechanics sense.