The PET material beverage bottle obtains the widespread application in the world market, the weight light and reliable solid has a drink together the glass jar is the economical practical basic request. After the traditional way is opens the mold processing to test the intensity again, if does not conform to the requirement to carry on the jar again the structural design, this increased the production cost without doubt. If after the bottle body designs first carries on the structure mechanics analysis in the computer to the bottle body, after revises the retreatment to be possible repeatedly to save the cost like this.But in at present production process lacks the corresponding bottle body structure mechanics the finite element analysis. Therefore this article in understood the PET bottle above the prospects for development and its materials behavior foundation, take the PET beverage bottle as the object of study, carries on the computation using the Ansys software to the bottle body intensity. Using the non-linear finite element analysis theory is the foundation, adopts the shell 4 node plasticity 181 units to the jar for the concrete object of study, under certain load pressure, carries on the structural stability analysis, finally changes the jar the correlation main parameter, obtains under the different design variable the bottle body structure mechanics result, carries on the analysis comparison to it, finally obtains conforms to the bottle phantom parameter.
