Essays about: "essential work of fracture ewf"

Found 3 essays containing the words essential work of fracture ewf.

  1. 1. Fracture Mechanical Trouser Taer Testing of thin polymer films

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Nasir Mehmood; Tan Mao; Gaurav Bhupati; [2012]
    Keywords : Key Words: PP; Mode I ; Mode III; Tensile test; ABAQUS simulation; Crack shapes; Tearing behavior; EWF; Polarized light; SEM microscope.;

    Abstract : Tensile and Trouser tear tests of thin packaging polymer films have been done successfully in this research thesis. Two different polymers (PP and LDPE) are used. Mode I and Mode III fracture tests have been used for crack propagation analysis. Several experiments are performed to calculate the material parameters. READ MORE

  3. 2. Study of Two Models for Tearing Resistance Assessment Using Essential Work of Fracture Method

    University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknik

    Author : Min Hu; [2008]
    Keywords : Essential Work of Fracture EWF ; Two-leg Trousers Tear test; Out-of-plane Fracture;

    Abstract : The thesis takes an insight look into two different models(two-zone and three-zone models)for describe the deformation and fracture behaviour of the tearing ligament.By earlier works,these two different models based on Essential Work of Fracture approach was proved to be capable for predicting the specific total work of fracture along the tear path across all plastic zones. READ MORE

  4. 3. A Pre-Study of the Tearing Behaviour of the Flexible Materials-towards Efficiency Packaging

    University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknik

    Author : Mohammed Jalaluddin Hyder; Hameeduddin Ahmed; [2006]
    Keywords : Tearing; Cohesive Zone; ABAQUS; Tensile Test; Finite Element; Essential Work of Fracture EWF theory; Mechanical properties; Experimental method; MTS;

    Abstract : In this thesis the tearing behaviour of flexible material is studied. A finite element model was built in ABAQUS and simulations were performed. The experimental tests were carried out to monitor the Load vs. Extension curve on single-tear specimen of Low Density Polyethylene (LDPE) and Paperboard. READ MORE