GS07 縄文土器材料に関する破壊力学研究

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  • GS07 Fracture Mechanics Study on the Johmon Pottery Material

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Transition to the Yayoi period from the Jomon period means change to rice-farming culture from hunting and gathering culture. It has been supposed that transition of culture was resulted in change of the earthenware style to Yayoi pottery from Jomon pottery. The history of a rice-farming start is going back by archaeological discovery. The transition of culture and the change of an earthenware style are not being in agreement. The authors considered that the change of an earthenware style was aimed the strength and toughness increase of Jomon pottery material. Jomon people also added mica intentionally into the pottery material. Present study clarifies the effect of the addition of mica on strength and fracture toughness of the pottery material. For the purpose, we performed 4-point bending and fracture toughness tests on Jomon pottery material imitation.

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