Study on the Pressure Mechanical Properties and Fracture Mechanism of the Meretrix Linnaeus Shell

Abstract

In order to research the compression performance of the clam shell meretrix Linnaeus, the test was carried out by universal testing machine. A comprehensive analysis is finished based on the relations between bearing load and deformation and the failure state of the pressure shells.The fresh shells had the better pressure performance with the large deformation and the large beariong load.Some microcrack had been produced on the shell, which did not cause fracture failure. The large crack was created directly on the dry shell with the bigger bearing load and that caused easily the dry shell to be destroied. The conclutions showed that the different state of shell organic matter can directly change the mechanical properties of shells.