Archives

Congratulations Shafiqul Md Islam, PhD!

Today, Shafiqul had a morning of presentation and discussion as he defended his PhD thesis “Fracture and Delamination in Packaging Materials: A Study of Experimental Methods and Simulation Techniques” in front of family, friends and colleagues at Blekinge Institute of Technology. The research has focused the development of building blocks for complete package-opening FE-simulation. The studies […]

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VIPP – Volvo Industrial PhD Programme

At Volvo Cars annual VIPP meeting, BTH’s PhD student Johan Pilthammar presented his research findings and received very good comments from the management team. His supervisor Prof. Sharon Kao- Walter was also invited and got a very good impression of the Volvo survey. About 30 industrial projects are in progress and more than 10 new […]

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Center of Excellence – stamping (förstudie) | 2018-2019

Förstudien kommer att handla om hur ett “Center of excellence” inom området stamping ska utformas och etableras i Olofström/Blekinge. Förstudiens mål är att arbeta fram en komplett verksamhetsplan för hur detta “Center of Excellence” ska utformas och etableras. PROJEKTINFORMATION BTH project leader: Prof Tobias Larsson Time span: 20180903-20190531 Funding: 800 kSEK (400 Tillväxtverket, ERUF) Partners:  Blekinge Tekniska Högskola Olofströms […]

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BTH-forskare i Kina för att diskutera hållbar produktion

En delegation bestående av forskare från bland annat BTH, Lunds universitet, Swerea IVF, Tetra Pak och Volvo Cars har diskuterat hållbar materialformning och dess tillämpningar inom bil- och förpackningsindustrin vid ett veckolångt besök i Kina. Symposiet arrangerades av BTH, Shanghai Polytechnic University och Kunming University of Science and Technology.

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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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Study of Ligament Length Effect on Mode Mix of a Modified In-Plane Shear Test Specimen

ABSTRACT 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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Study of Shear Dominant Delamination in Thin Brittle-High Ductile Interface

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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