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Purpose: The purpose of the research was to explore what phenomena influence parts warpage after injection moulding by different mould temperature at the opposite walls. Design/methodology/approach: The sample bars were injected into the injection mould and the warpage was observed. The deflection was measured and material structure was observed using optical microscope. Findings: It was found that...
Purpose: The numerical simulation of creep of polymer sample was the aim of work. Design/methodology/approach: Creep investigation included polypropylene. The test stand allowed to perform the creep process during bending at the 50 MPa stress level. The numerical analysis of creep model with the uniaxial stress-strain data for concrete mathematical model was done. Findings: The investigation were...
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