NUMERICAL ANALYSIS OF VISCO-PLASTIC BEHAVIOUR OF CIRCUAR SHEET METAL UNDER SHOCK PRESSURE

Publish Year: 1384
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ISME13_612

تاریخ نمایه سازی: 21 اسفند 1385

Abstract:

The plastic deformation process of fully clamped circular plates under shock loads is analyzed numerically. A lagrangian mesh of zones is defined in which the difference form of equations of motion relate the stresses of the zones to the accelerations and velocities of the nodes. These velocities in turn are related to the stresses by a suitable constitutive equation. The code is developed and used to analyze deformation characteristics of rate sensitive steel sheet with various loading conditions. The central deflection, response time and the profile of deformed part are obtained. The comparison of the results with those of experiments reported by other researcher, shows good agreements.

Keywords:

High speed forming – Sheet metal forming - Numerical analysis – FDM– Tensor code

Authors

Moslemi Naeini

Associate Professor Department of Mechanical Engineering, Faculty of Engineering, Tarbiat Modarres University

Liaghat

Professor Department of Mechanical Engineering, Faculty of Engineering, Tarbiat Modarres University

Ghadery

Professor Department of Mechanical Engineering, Faculty of Engineering, Tarbiat Modarres University

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