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IN THIS PAPER, WE GIVE OVERVIEW OF DEFORMATION MODES FOR THE UNIFORM FOAM FILLED THIN-WALLED STRUCTURE SUCH AS CIRCULAR TUBES, SQUARE TUBES, RECTANGULAR TUBES, TAPERED TUBES, HAT TUBES AND CONE TUBES. FOAM MATERIAL IS USED AS A REINFORCING MATERIAL ON A THIN WALL TUBE WHICH HAS POTENTIAL AS BEING A GOOD ENERGY ABSORBER. THIS IS EVIDENT FROM MANY OF THE STUDIES UNDERTAKEN ON THE CRASHWORTHINESS PERFORMANCE AND ENERGY ABSORPTION OF THE THIN WALL TUBE. ALSO, THIS PAPER PRESENTS A REVIEW OF THE CURRENT STATE OF THE ART IN COMPUTATIONAL OPTIMIZATION METHODS APPLIED TO FOAM FILLED STRUCTURES, OFFERING A CLEAR VISION OF THE LATEST RESEARCH ADVANCES IN THIS FIELD.
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