Experimental and numerical assessment of the work of fracture in injection-moulded low-density polyethylene

ABSTRACT The fracture mechanics properties of injection-moulded low-density polyethylene (LDPE) sheets were investigated both experimentally and numerically. The total work of fracture was determined experimentally, by means of fracture mechanics testing of sheets of injection-moulded LDPE with side cracks of different lengths. A multi-specimen method, proposed by Kim and Joe (1987), was employed. The total […]

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Masters thesis opportunities in testing and finite element simulation of packaging materials

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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Modeling and Study of Fracture and Delamination in a Packaging Laminate

ABSTRACT 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 […]

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