Packages are the means of preservation, distribution and convenience of use for food, medicine and other consumer products. Introduction of new packaging materials or package opening techniques for better user experience, forces new design measurements which require a large number of prototype developments and physical testing. In order to achieve more rapid and robust designs, […]
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Two months to apply in “real life” what has been learned during the years of university education, starting from a plan to the delivery of a final solution. This was the task the international students participating in the MT1490 yearly project course. Three teams of students, have on January 10th presented the results of multidisciplinary […]
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On December 9 Md. Shafiqul Islam, PhD Candidate, presented and successfully discussed his licentiate thesis in Mechanical Engineering.
Read MoreABSTRACT In this work, a packaging laminate consisting of LDPE (Low Density Polyethylene), Al-foil (Aluminum foil) is focused, and failure due to necking in substrates and interfacial delamination under loading are considered. A coupled elasto-plasticity damage and fracture constitutive model is combined. The proposed constitutive model is incorporated into the FEM code ABAQUS and utilized […]
Read MoreABSTRACT Shear fracture toughness is an important material behavior that needs to be determined and considered in many industrial fields. At the same time, shear testing is one of the complex material testing areas where available methods are few, often need special arrangements, and most of the methods do not strictly satisfy the definition of […]
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ABSTRACT Thin laminates of Aluminum (Al) foil and Low Density Polyethylene (LDPE) film are essential constituents of food packages where these two substrates are bonded together with a thin layer of LDPE acting as adhesive. Noticeably, Al is a low ductile/quasi brittle material, whereas LDPE is highly ductile. The mechanism of delamination and strength of […]
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ABSTRACT In this study, laminated composites consisting of LDPE (Low Density Polyethylene), Al-foil (Aluminum foil)and an adhesive interface layer is focused. The defects like necking in LDPE, Al-foil layer and interfacial delamination can significantly impact the loading capacity of the laminated material. However, the influence mechanisms of the defects are still unclear, and no appropriate […]
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